National Institute for Occupational Safety and Health

“ Phenyl ether is toxic by inhalation. Diphenyl is toxic. Work in a fume hood.
SAMPLING: 1. 2.
3. 4. 5.
Calibrate each personal sampling pump with a representative sampler in line. Immediately before sampling, break the ends of the tube to provide an opening at least one-half the internal diameter of the tube (2-mm) . Attach sampler to personal sampling pump with flexible tubing. Sample at an accurately known flow rate between 0.01 and 0.2 L/min for a total sample volume of 1 to 40 L. After the sample is collected, cap each tube with plastic plugs and pack securely for shipment. ”

“ Collect a bulk sample (ca. 1 g) in a glass vial and ship it separately.
SAMPLE PREPARATION: 6. 7. 8.
Place front and back sorbent sections of the sampler tube in separate vials. Discard the glass wood and foam plugs. Add 0.5 mL benzene to each sample vial and attach the crimp cap. Allow to stand for 30 min with occasional agitation.
CALIBRATION AND QUALITY CONTROL: 9.
Calibrate daily with at least six working standards. a. Add known amounts of calibration stock solution to 0.5 mL benzene. ”

“ PTFE plugs and/or tubing. 4. Vials, glass, 1-mL with PTFE-lined crimp caps. 5. Gas chromatograph, flame ionization detector, recorder, integrator and column (page 2013-1) . 6. Tweezers. 7. File. 8. Syringes, 5-, 50- and 100-μL, other sizes if needed. 9. Volumetric flasks, 10-mL. 10. Pipets, 0.5-, and 1.0-mL glass, delivery, graduated in 0.1-mL increments, with pipet bulb. 11. Graduated cylinders, glass, 10-mL.
SPECIAL PRECAUTIONS: Benzene is a carcinogen, toxic and is flammable. ”