National Institute for Occupational Safety and Health

“ Sample 48 to 480 L (15 L for STEL) of air at an accurately known rate between 0.5 and 1.0 L/min. Transfer filter carefully using tweezers to the bubbler. Seal bubbler for shipment in a suitable container in order to prevent damage during transit. Seal the inlet and outlet of the bubbler stem by connecting a piece of PTFE tubing between them or by inserting PTFE plugs in the inlet and outlet. Collect a bulk sample (ca. 1 g) in a glass vial and ship it separately. ”

“ Pentachlorophenol can irritate the eyes, can be absorbed through the skin, and can cause liver damage [6] . Ethylene glycol is very toxic. It may be harmful or fatal if absorbed through the skin or swallowed, may cause kidney damage, and is a suspect reproductive hazard [7] .
SAMPLING: 1. 2. 3. 4. 5.
6.
Calibrate each personal sampling pump with a representative sampler in line. Transfer 15 mL ethylene glycol to a bubbler. Attach outlet of filter holder to inlet arm of bubbler. Connect outlet arm of bubbler to a second empty bubbler and then to the sampling pump. ”

“ Analyze working standards together with samples and blanks (steps 13 through 15) . NIOSH Manual of Analytical Methods (NMAM) , Fourth Edition, 8/15/94 PENTACHLOROPHENOL: METHOD 5512, Issue 2, dated 15 August 1994 - Page 3 of 4 c. 11.
12.
Prepare a calibration graph of peak area vs. amount (μg) of pentachlorophenol per 25 mL of sample. Determine recovery for each lot of filters used for sampling in the concentration range of interest. Prepare four filters at each of five levels plus three media blanks. a. Spike aliquot of calibration solution onto each filter. b. ”