sampling refresher. site characterization what am i dealing with
TRANSCRIPT
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Sampling refresher
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Site characterization
• What am I dealing with
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Site characterization
• Identify all the hazards
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Site characterization
• Be systematic
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Pictures
• Before and after• Organized
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Pictures
• Picture quality• Take more pictures than you think you need• Have extra SD cards
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Sample selection
• Choose the best 1 or 2 samples• Sample in the proper order
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Sample characterization
• Sample container (how am I going to acquire the sample)
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Sample characterization
• Can I reach the sample
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Sample characterization
• Tool selection
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Sample characterization
• Pre-prepared sampling kit
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Sample characterization
• Where am I going to put my sampling equipment
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Radiation
• Why do we check rad first• Can’t taste, feel, smell, hear it• Equipment is very sensitive• Always lead with rad
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pH
• Why do we check pH?
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pH
• Corrosiveness is the hazard• Critical for PPE selection
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pH
• Don’t care about number just red or blue• Be familiar how your pH paper works• Protect it from the environment during
storage
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5 gas
• LEL correction factors (10%)• Sensor poisons• Cross sensitivity• Ionization potential• Sensor saturation
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M8
• Aqueous versus organic• Color changes are not definitive
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Starch iodide (oxidizer)
• Doesn’t work against nitrates, chlorate, perchlorates
• Works well with peroxides and bleach
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Chemical, biological or radiation?
• Based on environment and sample characterization we divide into possible chemical, biological, or radiation– Radiation leave in place
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Chemicals
• We generally use glass sample containers
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Biologicals
• Generally use plastic
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Time for a demonstration