Teledyne 6712FR Cleaning Protocols for Priority Pollutants, 8.3.1, Isco Glass Sample, Bottles

6712FR Refrigerated Sampler Section 8 Maintenance

8.3Cleaning Protocols for Priority Pollutants

Clean sampling equipment is essential for valid laboratory analysis. Teledyne Isco recommends that you develop cleaning protocols in consultation with a laboratory analyst when designing the monitoring program. For example, to clean sample bottles, suction line, and pump tubes, Lair (1974) suggests these protocols used by USEPA Region IV Surveillance and Analysis field personnel engaged in NPDES compliance monitoring. The protocols are based on U.S. Environmental Protection Agency Publications EPA-600/4-77-039 (Sampling of Water and Waste- water by Dr. Phillip E. Shelley).

8.3.1	Isco Glass Sample	1.	One spectro-grade acetone rinse.
	Bottles	2.	Dishwasher cycle (wash and tap water rinse, no detergent).
		3.	Acid wash with at least 20 percent hydrochloric acid.
		4.	Dishwasher cycle (wash and tap water rinse, no detergent).
		5.	Replace in covered Isco tubs.
8.3.2	Vinyl Suction Line	•	Use new suction line for each new sampling setup,
			therefore, no cleaning is required.
		•	Use PTFE suction line when sampling for organic
			compounds.
8.3.3	PTFE Suction Line	1.	Rinse twice with spectro-grade acetone.
		2.	Rinse thoroughly with hot tap water using a brush, if pos-
			sible, to remove particulate matter and surface film.
		3.	Rinse thoroughly three times with tap water.
		4.	Acid wash with at least 20 percent hydrochloric acid.
		5.	Rinse thoroughly three times with tap water.
		6.	Rinse thoroughly three times with distilled water.
		7.	Rinse thoroughly with petroleum ether and dry by pulling
			air through the line.
		8.	Dry overnight in a warm oven (use an oven temperature of
			lower than 150° F), if possible.
		9.	Cap ends with aluminum foil.
8.3.4	Isco Pump Tube	1.	Rinse by pumping hot tap water through the tube for at
			least 2 minutes.
		2.	Acid wash the tube by pumping at least a 20 percent solu-
			tion of hydrochloric acid through the tube for at least 2
			minutes.
		3.	Rinse by pumping hot tap water through the tube for at
			least 2 minutes.
		4.	Rinse by pumping distilled water through the tube for at
			least 2 minutes.

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