patco_chra_rev1

7/30/2019 Patco_CHRA_rev1

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CHEMICAL HEALTH RISKASSESSMENT

Patco (M) Berhad

PREPARED BY:Ng WK, Lydia Song

Aug 2012


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INTRODUCTION

This assessment has been conducted at Patco (M) Bhdin June and review in July.

This assessment was performed by: Mr. Ng Wei Khiang, MSc, HIE 127/171-2-283.


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CHRA STUDY AREA

Work Unit:

-pre-assembly

-flux application and auto brazing

-manual brazing-helium leak test

-nitrogen filling

-degreasing

-maintenance

Work hour per shift: 8 hours.


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ASSESSMENT OBJECTIVES

To perform an assessment on the health risks

arising from the use of chemical hazardous to

health at the workplace.

To protect the employees from the adverse health

effects of chemicals.

To comply with the Occupational Safety and Health

(Use and Standard of Exposure of ChemicalHazardous to Health) Regulation 2000.


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METHODOLOGY

Document Review Walk-through Survey

Interview

Measurement (i.e. air flow rate, temperature) ifapplicable

Risk Assessment- Hazard rating (1-5)

- Magnitude rating = Release x Contact

- Exposure Rating = Frequency rating x Magnitude rating

- Risk Ranking = Hazard rating x Exposure Rating


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RESULT & ANALYSIS

Work AreaChemical Hazardous

To Health HazardRating ExposureRating RiskDecision RiskConclusionPre-Assembly Alfin lube oil 3 2 3 C2Flux Al Flux 2805 3 4 4 C3

Al Flux 7028 2 4 3 C3Tohkem 2 4 3 C3

Brazing Alcotex 4 5 5 C3CO2 (oxy-acetylene

brazing) 4 4 4 C3Leak test Helium 4 2 3 C3

Compressor oil 3 3 3 C3Nitrogen filling Nitrogen 4 2 3 C3Degreasing Methylene Chloride 3 3 3 C3Maintenance Coster gear oil 3 2 3 C2

Tachecon 2 2 2 C2CRC contact cleaner 2 3 3 C2


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Status Remark

1.0 TECHNICAL MEASURE

1.1.Elimination/Substitution OK

1.2.Isolation/Enclosures OK

1.3.Ventilation OK

1.4.Work practice / System of work XJHA, MOC

1.5.Personal protection XPPE Program

2. MAINTENANCE OF CONTROL EQUIPMENT OK

3. MONITORING OF AIR CONTAMINANT OKReported incident

4. BIOLOGICAL MONITORING OKReported incident.

5. HEALTH SURVEILLANCE OKHigh risk group

6. INFO, INSTRUCTION & TRAINING XMSDS, Label,

Communication

7. EMERGENCY & FIRST AID PROCEDURES X

ER Equip, Drill

CONCLUSIONFin Corrugator & Pre-Assembly


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Status Remark




1.3.Ventilation XMechanical fan in manual

flux room

1.4.Work practice / System of work XJHA


2. MAINTENANCE OF CONTROL EQUIPMENT XLocal exhaust ventilation

3. MONITORING OF AIR CONTAMINANT XFlux dust (Total and

fractional dust)




Communication

7. EMERGENCY & FIRST AID PROCEDURES XER Equip, Drill

CONCLUSIONFlux Coating & Auto Brazing


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Status Remark1.0 TECHNICAL MEASURE


1.2.Isolation/Enclosures XEnclosed brazing station

1.3.Ventilation X

Local exhaust ventilation




3. MONITORING OF AIR CONTAMINANT XBrazing fume (aluminium

oxide particle,


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Status Remark



1.2.Isolation/Enclosures OKLeak Test Chamber

1.3.VentilationOK



2. MAINTENANCE OF CONTROL EQUIPMENT XLEV


4. BIOLOGICAL MONITORING OK Reported incident.5. HEALTH SURVEILLANCE OK High risk group6. INFO, INSTRUCTION & TRAINING X

MSDS, Label,

Communication

7. EMERGENCY & FIRST AID PROCEDURES X ER Equip, Drill

CONCLUSIONLeak Test


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Status Remark



1.2.Isolation/Enclosures OKFilling Chamber

1.3.VentilationOK






MSDS, Label,

Communication


CONCLUSIONNitrogen Filling


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Status Remark



1.2.Isolation/Enclosures OKDegreaser

1.3.VentilationOK






MSDS, Label,

Communication


CONCLUSIONDegreasing


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Status Remark




1.3.Ventilation OK

1.4.Work practice / System of work XJHA, MOC







Communication

7. EMERGENCY & FIRST AID PROCEDURES X

ER Equip, Drill

CONCLUSIONMaintenance

patco_chra_rev1

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