amrl emulsion worksheets

AMRL Emulsion Worksheets EML - 0

OSA.F33 Date: ____________________ Assessment No: ____________________ Assessor:________________ 12/99

EMULSION INDEX

Test Method AASHTO/ASTM PagesApparatusTTTT/NEP

ProcedureTTTT/TND

RESIDUE BY DISTILLATIONT59 / D244

1 & 2

RESIDUE BY EVAPORATION 3

PARTICLE CHARGE 4

SAYBOLT 5 & 6

DEMULSIBILITY 7

SETTLEMENT 8

CEMENT MIXING 9

SIEVE 10

STORAGE STABILITY 11

(Fill in NEP for No Equipment Presented, TND for Test No Demonstrated)

COMMENTS: _____________________________________________________________________________________

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APPARATUS FOR RESIDUE BY DISTILLATION (AASHTO T59) _____(ASTM D244) _____

1. Still and Burner Assembly(a) Still made of aluminum alloy? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

ASTM: Iron stills are acceptable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____Approximately 241 mm (9 ½ in.) by 95.3 mm (3 ¾ in.) I.D.? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(b) Still head, made of aluminum alloy? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____1) One 1 in. hole for connecting tube? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____2) Two ½ in. holes for thermometers? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(c) Clamp for still head satisfactory? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(d) Seal for still, one of the following? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

1) Ground joint to a tight fit? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2) Gasket of asbestos or oiled paper? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(e) Burner for still: 4 ¾ in. I.D. ring burner with ports on inner periphery and spacers? . . . . . . . . . . . . . . . . . . _____

2. Connecting Apparatus (a) Glass connecting tube, approx. 12 mm O.D (ASTM: 12.5 ± 0.5 mm)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) Bunsen burner for connecting tube? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Wing tip (optional)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(c) Metal flame shield? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(d) Suitable adapter between condenser and graduate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

3. Condenser(a) One of the following? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

1) West or Liebig type glass condenser? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2) Metal-jacketed condenser? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ ASTM: Other condensers with wetted length of 400 to 550 mm, may be used . . . . . . . . . . . . . . . . . . . . _____

(b) Adapter end to accommodate cork connection? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

4. Receiver (a) 100 mL graduated cylinder? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) Graduation intervals of 1.0 mL? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

5. Thermometers (a) Two ASTM 7C or 7F thermometers? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) Corks for thermometers? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

6. Miscellaneous (a) 8 oz. container or suitable molds? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) A 300-:m (No. 50) sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(c) Class G2 balance (0.1 g) available? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

REMARKS:



CONDITIONING OF SAMPLES (AASHTO T59) _____(ASTM D244) _____

All emulsions with viscosity requirements of 122°F (50°C) should be heated to 122 ± 5°F (50 ± 3°C) inthe original container in a 160°F water bath or oven. The container should be vented to relieve pressure.After the sample reaches 122 ± 5°F (50 ± 3°C), sample stirred. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

RESIDUE BY DISTILLATION (AASHTO T59) _____(ASTM D244) _____

1. Still (with lid; clamp; thermometers; and gasket, if used) weighed? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. 200.0 ± 0.1 g representative sample weighed in still assembly? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. One thermometer positioned ¼ in. from bottom of still? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Other thermometer positioned approx. 6 ½ in. from bottom? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Ring burner placed around still? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Ring burner lit? Time: (__________) 7. Connecting tube heated by bunsen burner to prevent condensation? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 8. Ring burner moved to bottom of still when lower thermometer is readable: approx. 420°F (215°C)? . . . . . . . . . . _____ 9. Temperature (lower thermometer) increased to 500 ± 10°F (260 ± 5°C)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____10. Temperature maintained at 500 ± 10°F (260 ± 5°C) for 15 minutes? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____11. Ring burner shut off? Time: (__________) 12. Elapsed time, steps 6 to 11: 60 ± 15 minutes? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____13. Hot still assembly containing residue immediately weighed to 0.1 g? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____14. Thermal buoyancy correction of 1.5 g added to above gross weight? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____15. Residue stirred? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____16. Suitable portions immediately poured into an 8 oz. tin or suitable molds? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____17. If foreign matter present, material poured through a 300-:m (No. 50) sieve into suitable molds? . . . . . . . . . . . . . _____18. Volume of oil distillate, if present, recorded to nearest ½ mL? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____19. Volume percent of oil distillate present calculated & reported? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____20. Percentage residue by distillation calculated and reported? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

REMARKS:



RESIDUE BY EVAPORATION (AASHTO T59) _____(ASTM D244) _____

1. Apparatus for Procedure A(a) Three containers, 1000 mL capacity, glass or metal or containers of similar dimensions? . . . . . . . . . . . . . . _____(b) Three glass rods, flame polished ends, at least 7 x ¼ in. in diameter ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

2. Apparatus for Procedure B(a) Four containers presented; 1000 mL heat resistant, open top? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) Four glass rods, flame polished ends, at least 7 x ¼ in. in diameter? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(c) 300-:m (No. 50) sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

3. Apparatus for Procedure A and Procedure B(a) Oven? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

1) Thermostatically controlled? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____2) Capable of maintaining 163 ± 3°C (325 ± 5°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(b) Class G2 balance available? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Procedure 1. 3 beakers used for Method A, 4 for Method B? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. Each beaker or container, with a rod, weighed to 0.1 g? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. 50.0 ± 0.1 g of thoroughly mixed emulsion weighed into each beaker or container? . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Water initially evaporated from the beakers or containers by one of the following methods? . . . . . . . . . . . . . . . . _____

(a) Maintaining them in oven at 163 ± 3°C (325 ± 5°F) for 2 hrs? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ (b) Carefully heating them on hot plate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ (c) Placing containers in a cold or warm oven and bringing oven and sample up to a

temperature of 163°C (325°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Residue then thoroughly stirred? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Beakers or containers, with rod and residue, replaced in oven at 163 ± 3°C (325 ± 5°F) for one hour? . . . . . . . . . _____ 7. Beakers or containers, with rod and residue, allowed to cool to room temp. and weighed to 0.1 g? . . . . . . . . . . . _____ 8. Beakers or containers, with rod and residue, replaced in oven until residue sufficiently fluid (Method B)? . . . . . . _____ 9. Residue poured through 300-:m (No. 50) sieve into suitable containers or molds (Method B)? . . . . . . . . . . . . . . _____10. Percent residue calculated for each beaker or container? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____11. Percentage of residue by evaporation reported as the average of three results? . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

REMARKS:



PARTICLE CHARGE (AASHTO T59) _____(ASTM D244) _____

Apparatus 1. 12-V dc current source, milliammeter, and current control device? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. Electrodes: two 1 x 4 in. stainless steel plates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Held rigidly parallel, ½ in. apart? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. 250 mL capacity beaker? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Insulator (polytetraflouroethylene resin square rod, virgin electrical grade, ½ in. thick, or an

insulator made from other suitable material)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ASTM: Insulator made from polytetrafluoroethylene resin square rod, virgin electrical grade? . . . . . . . . . . . . _____

6. Glass rod, 4 in. long and ¼ in thick or other device capable of insulatingand suspending the electrode assembly in emulsion? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

7. Optional: Apparatus capable of manual height adjustment to insulate and suspend electrode assembly? . . . . . . . _____ 8. Water bath at temperature of 160 ± 5°F (71 ± 3°C)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 9. ASTM 19F or 19C thermometer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____10. Suitable timing device? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Procedure 1. Heat the emulsion to 122 ± 5°F (50 ± 3°C) in a 160 ± 5°F (71 ± 3°C) water bath,

stirring thoroughly? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. Pour emulsion into 250 mL beaker - insert glass rod between the insulator. Lie ends of glass rod on

the two opposite top edges of beaker. (An apparatus capable of manual height adjustment to insulateand suspend electrode assembly may be used instead.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

3. Sufficient emulsion poured into beaker to allow electrodes to be immersed approximately 1 in.? . . . . . . . . . . . . . _____ 4. New electrodes and electrodes to be reused cleaned by washing with distilled water, suitable asphalt

solvent, isopropyl or ethyl alcohol, and then distilled water? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Clean dry electrodes connected to current source and inserted approximately 1 in. into the emulsion? . . . . . . . . . _____ 6. Current adjusted to at least 8 mA and timing started? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 7. After 30 minutes or at 2 mA, whichever occurs first, electrodes disconnected and gently washed with

a smooth, thin stream of distilled water? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 8. Electrodes examined for deposit of asphalt? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 9. Determined polarity reported? [Asphalt on cathode (negative electrode) for cationic emulsion] . . . . . . . . . . . . . _____

REMARKS:



APPARATUS FOR SAYBOLT FUROL VISCOSITY (AASHTO T59, T72) _____(ASTM D244, D88) _____

1. Viscosity Tubes 1 2 3 4 5 6

Calibration factor?

Correction 1% or less (0.99 to 1.01)?

Month and Year of calibration?

Calibrated within last 3 years?

Tube has furol tip?

Tube corrosion resistant?

Inner surface smooth & clean?

Good cork?

Bottom of tube 10 - 13 cm from flaskgrad. mark?

2. Testing Bath(a) Maker? ____________________________________________________(b) Serial No. (or ID No.)? _____________________________________(c) Viscometer and bath in draft-free location? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(d) Bath capable of being filled to at least 6 mm (¼ in.) above overflow rim of viscometer? . . . . . . . . . . . . . . _____(e) Bath has stirrer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(f) Bath has thermostatic temperature control? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(g) Control capable of regulating the temperature of the bath so that it does not fluctuate by more

than ± 0.03°C (± 0.05°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

3. Thermometers(a) ASTM 17C or 17F for tests at 25°C (77°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) ASTM 19C or 19F for tests at 50°C (122°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

4. Water BathWater bath at 25°C (77°F) capable of maintaining temperature within range of 25.00 ± 0.10°C (77.0 ± 0.2°F)? . _____

5. Miscellaneous(a) Timing Device: 0.1 s (accuracy covered in Gen. Bit.)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) Withdrawal device? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(c) Thermometer support? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(d) Proper receiving flasks? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(e) 850-:m (No. 20) sieve or a 20-mesh strainer of wire cloth (framed or unframed)? . . . . . . . . . . . . . . . . . . . _____(f) 4 oz. bottle with stopper for tests at 25°C (77°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(g) 400 mL beaker for tests at 50°C (122°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(h) Water bath for tests at 50°C (122°F): capable of 71 ± 3°C (160 ± 5°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

REMARKS:



SAYBOLT FUROL VISCOSITY (AASHTO T59, T72) _____(ASTM D244, D88) _____

Procedure for Tests at 25°C (77°F) 1. Viscometer bath thermostat adjusted to maintain the bath at a temperature of 25.0 ± 0.1°C

(77.0 ± 0.2°F) within ± 0.05°C (± 0.10°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. Sample thoroughly stirred, without incorporating bubbles? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. 100 to 110 mL of sample poured into 120 mL (4 oz.) bottle? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Closed bottle placed for 30 minutes in a water bath maintained at 25.00 ± 0.10°C (77.0 ± 0.2°F)? . . . . . . . . . . . . _____ 5. Bottle slowly inverted several times to mix sample? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Sample poured into viscometer through 850-:m (No. 20) sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(a) Small portion allowed to flow through outlet to waste? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) Tube corked and viscometer filled until liquid begins to overflow the overflow rim? . . . . . . . . . . . . . . . . . _____

7. Viscosity determined without any further disturbance of sample (without clearing gallery or stirring)? . . . . . . . . _____(a) Cork snapped from tube and timer started at same instant? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) Flask located so stream just touches neck of flask? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(c) Timer stopped when bottom of meniscus reaches grad. mark? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

8. Time of flow not less than 20 seconds? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Procedure for Tests at 50°C (122°F) 1. Heat the emulsion sample in the original container to 122 ± 5°F (50 ± 3°C) in a

160 ± 5°F (71 ± 3°C) water bath or oven? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. Clean, dry viscometer corked? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Sample thoroughly stirred without incorporating bubbles? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Approximately 100 mL of sample poured into 400 mL beaker? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Beaker placed in water bath at 71 ± 3°C (160 ± 5°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Sample heated in water bath until temperature between 51.4 and 60°C is achieved? . . . . . . . . . . . . . . . . . . . . . . . _____

ASTM: Sample heated & stirred until it reaches 51.4 ± 0.3°C (124.5 ± 0.5°F)? . . . . . . . . . . . . . . . . . . . . . . . . . _____ 7. Sample poured into viscometer through 850-:m (No. 20) strainer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Level of sample above overflow rim of viscometer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 8. Sample stirred at 60 rpm with thermometer, avoiding bubbles? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 9. Temperature of emulsion adjusted until it remains constant for one minute at 50.00 ± 0.05°C (122.0 ± 0.1°F)? . . _____10. Temperature of viscosity bath within ± 0.20°C (± 0.35°F) of sample temperature? . . . . . . . . . . . . . . . . . . . . . . . . _____11. Thereafter, thermometer withdrawn from viscometer and excess emulsion quickly removed from

the gallery? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____12. Cork snapped from tube and timer started at same instant? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(a) Cork dry? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) Flask located so stream just touches neck of flask? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(c) Timer stopped when bottom of meniscus reaches grad. mark? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

13. Time of flow not less than 20 seconds? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

CalculationEfflux time multiplied by calibration factor of viscometer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

REMARKS:



DEMULSIBILITY (AASHTO T59) _____(ASTM D244) _____

Apparatus 1. Three pieces of No. 14 (1.40-mm) wire cloth, unframed, approximately 5 in. square? . . . . . . . . . . . . . . . . . . . . . _____ 2. Three metal beakers, 600 mL capacity each? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Three metal rods: approx. 8 mm diameter, with rounded ends? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. A 50 mL glass buret graduated in 0.1 mL intervals? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Demulsifying solutions for anionic emulsions:

(a) CaCl2 solution (1.11 g/L), prepared with water? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ or (b) CaCl2 solution (5.55 g/L), prepared with water? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Demulsifying solution for cationic emulsions:

Dioctyl sodium sulfosuccinate sol. (8g/L), in water? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 7. Class G2 balance available? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Procedure 1. Percent residue by distillation determined? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. Three assemblies of beaker, stirring rod, and wire cloth weighed? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. 100.0 ± 0.1 g of sample weighed into each of three assemblies? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Weighed to nearest 0.1 g? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Weighed samples and reagent brought to 25.0 ± 0.5°C (77.0 ± 1.0°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Reagent added from buret over approx. 2 min. period? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(a) 35 mL CaCl2 solution (1.11 g/L) for anionic RS emulsions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) 50 mL CaCL2 sol (5.55g/L) for mixing-type emulsions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(c) 35 mL of 0.8 percent solution of dioctyl sodium sulfosuccinate for cationic emulsions? . . . . . . . . . . . . . . . _____

7. Contents of beaker stirred continuously and vigorously during addition of reagent? . . . . . . . . . . . . . . . . . . . . . . . _____ 8. Lumps kneaded against side of beaker? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 9. Kneading continued for 2 min. after addition of reagent? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____10. Mixture decanted onto wire cloth? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____11. Beaker and rod rinsed over wire cloth with distilled water? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____12. Lumps kneaded and beaker, rod, and wire cloth rinsed until water runs clear? . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____13. Wire cloth enclosing asphalt placed in beaker with rod? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____14. Assemblies placed in 163°C (325°F) oven? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Preliminary heating at lower temperatures to prevent spattering is permissible. . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ASTM: Pre-drying sample is not acceptable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

15. Samples dried to constant weight (change between two successive weighings less than 0.1 g -AMRL-)? . . . . . . . _____16. Demulsibility calculated as: (A/B) x 100? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

where: A = average weight of demulsibility residues from the 3 testsB = weight of residue by distillation in 100 g of sample

REMARKS:



SETTLEMENT (AASHTO T59) _____(ASTM D244) _____

Apparatus 1. Two 500 mL glass cylinders? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(a) 50 ± 5 mm diameter? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) 5 mL graduations? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

ASTM: No graduations specified. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(c) Cork or glass stoppers? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

ASTM: Cylinders with side-arms are not acceptable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. A 60 mL capacity glass tube pipet (of optional form)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Four 1000 mL low-form glass or metal beakers or containers of similar dimensions? . . . . . . . . . . . . . . . . . . . . . . _____ 4. Class G2 balance available? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Oven: capable of being maintained at 325 ± 5°F (163 ± 3°C)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Procedure 1. 500 mL representative sample placed in each of 2 cylinders? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. Cylinders sealed airtight? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Cylinders allowed to stand undisturbed for 5 days at lab temperature? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Approx. top 55 mL of emulsion pipetted or syphoned from each cylinder without disturbing remainder? . . . . . . _____ 5. Each portion thoroughly mixed? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. 50.0 ± 0.1 g of each sample weighed into separate beaker? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 7. Content of each beaker or container evaporated by procedure specified under Residue by Evaporation, and

percent residue calculated (A = top sample)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 8. Approximately next 390 mL syphoned from each cylinder? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 9. Emulsion remaining in each cylinder thoroughly mixed and 50.0 ± 0.1 g weighed into separate

beakers? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____10. Content of each beaker or container evaporated by procedure specified under Residue by Evaporation, and

percent residue calculated (B = bottom sample)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____11. Settlement calculated as: % (5 days) = B-A? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____12. Report the settlement as the average of the two individual cylinders results? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

REMARKS:



CEMENT MIXING (AASHTO T59) _____(ASTM D244) _____

Apparatus 1. A 180-:m (No. 80) sieve available? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. A 3 in. diameter, 1.40-mm (No. 14) sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Shallow pan for 3 in. diameter sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Graduated cylinder, 100 mL capacity? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Mixing bowl: glass or metal, capacity approx. 500 mL? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Stirring rod: steel, approx. 12.7-mm (½ in.) diameter, with rounded ends? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 7. Type III Portland Cement: conforming to AASHTO M85? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 8. Minimum specific surface area of cement; one of below? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(a) 1900 cm2/g per AASHTO T98 (by Wagner Turbidimeter)? or (b) 3450 cm2/g per AASHTO T153 (by Air Permeability) [AASHTO only]? 9. Class G2 balance available? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____10. Oven, capable of being maintained at 163 ± 3°C (325 ± 5°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Procedure 1. Emulsion diluted to 55 percent residue? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(a) Diluted with distilled water? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) Calculation of percent residue based on determination by:

1) Distillation? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____2) Evaporation for 3 hours at 163°C (325°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

2. Cement sieved through 180-:m (No. 80) sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. 50.0 ± 0.1 g cement passing 180-:m (No. 80) sieve weighed into mixing bowl? . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Ingredients and apparatus brought to approximately 25°C (77°F) before mixing? . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. 100 mL of diluted emulsion added to cement? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Mixture immediately stirred with steel rod? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

With circular motion at approximately 60 rpm? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 7. After stirring 1 min., 150 mL distilled water added? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 8. Stirring continued for additional 3 min. period? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 9. Tare weight of 1.40-mm (No. 14) sieve and shallow pan determined? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____10. Mixture poured through 1.40-mm (No. 14) sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____11. Bowl rinsed over sieve with distilled water until clean? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____12. Sieve rinsed with distilled water until water is clear? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Distilled water poured from a height of approx. 150 mm (6 in.)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____13. Sieve placed in shallow pan and heated at 163°C (325°F) in oven? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____14. Heating and weighing repeated until successive weights differ by no more than 0.1 g? . . . . . . . . . . . . . . . . . . . . . _____15. Weight of material retained on sieve and in pan reported as the percentage of break in the cement

mixing test? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

REMARKS:



SIEVE (AASHTO T59) _____(ASTM D244) _____

Apparatus 1. A 3 in. diameter, 850-:m (No. 20) sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. Pan: shallow metal container to fit bottom of sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Solution of 2 percent sodium oleate in distilled water? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Distilled water for testing cationic emulsions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Container suitable for l kg of emulsion? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Oven: capable of being maintained at 220°F (105°C)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 7. Desiccator? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 8. Class G5 balance available (for weighing the emulsion)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Class G2 balance available (for weighing the sieve and residue)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Procedure 1. Test Temperature

(a) Test temperature is room temperature for samples whose viscosity is 100 s or less when testedat 25°C (77°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(b) Test temperature at 50 ± 3°C (122 ± 5°F) for samples whose viscosity is greater than 100 s orwhose viscosity is specified at 50°C (122°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

2. Sample stirred to achieve homogeneity? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Weight of 850-:m (No. 20) sieve and pan determined (= A)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Sieve cloth wet with appropriate liquid? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(a) With 2 percent sodium oleate solution for anionic emulsions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ (b) With distilled water for cationic emulsions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

5. 1 kg (1000 g) of emulsion weighed into suitable container? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Sample poured through sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 7. Container and residue on sieve washed with appropriate liquid until washing run clear? . . . . . . . . . . . . . . . . . . . . _____

(a) With 2 percent sodium oleate solution for anionic emulsions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ (b) With distilled water for cationic emulsions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

8. Pan placed under sieve? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 9. Pan and sieve heated for 2 hr. in 220°F (105°C) drying oven? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____10. Pan and sieve cooled in a desiccator? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____11. Sieve, pan, and residue weighed (= B)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____12. Percentage sample retained on sieve calculated as: (B - A)/10? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

REMARKS:



STORAGE STABILITY (AASHTO T59) _____(ASTM D244) _____

Apparatus 1. Two 500 mL glass cylinders? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

(a) 50 ± 5 mm O.D.? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(b) 5 mL graduations? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____(c) Cork or glass stoppers? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

ASTM: Cylinders with side-arms are not acceptable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. A 60 mL glass tube pipet (of optional form)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Four 1000 mL glass or metal beakers or containers of similar dimensions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Four glass rods: 7 in. x ¼ in. dia.? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Oven: capable of being maintained at 163 ± 3°C (325 ± 5°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 6. Glass G2 balance available? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____

Procedure 1. Sample brought to room temperature: 21 to 27°C (70 to 80°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 2. 500 mL representative sample placed in each of 2 cylinders? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 3. Cylinders sealed airtight? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 4. Cylinders allowed to stand undisturbed for 24 hrs. at 21 to 27°C (70 to 80°F)? . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 5. Approx. top 55 mL of emulsion pipetted or syphoned from each cylinder without disturbing remainder? . . . . . . _____ 6. Each portion thoroughly mixed? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 7. 50.0 ± 0.1 g of each sample weighed into separate beaker or container? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 8. Content of each beaker or container evaporated by procedure specified under Residue by Evaporation,

and percent residue calculated? (A = top) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____ 9. Approximately next 390 mL syphoned from each cylinder? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____10. Emulsion remaining in each cylinder thoroughly mixed and 50 g weighed into separate beaker? . . . . . . . . . . . . . _____

Weighed to 0.1 g? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____11. Content of each beaker or container evaporated by procedure specified under Residue by Evaporation,

and percent residue calculated? (B = bottom) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____12. Settlement calculated as: % (24 hr.) = B-A? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _____13. Report the storage stability as the average of the two individual cylinders results? . . . . . . . . . . . . . . . . . . . . . . . . _____

REMARKS:

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