National Institute for Occupational Safety and Health

“ Add 3.0 mL eluent to each vial. Cap immediately. NIOSH Manual of Analytical Methods (NMAM) , Fourth Edition, 8/15/94 IODINE: METHOD 6005, Issue 2, dated 15 August 1994 - Page 3 of 4 10. 11.
Agitate vials in ultrasonic bath for 2 min at room temperature. Draw sample extract through 13-mm PTFE filter attached to 3-mL syringe. NOTE: All samples, eluents and water flowing through the IC must be filtered to avoid plugging the system valves or columns. ”

“ Iodine is a severe irritant to the eyes and respiratory system and, to a lesser extent, the skin [4] . SAMPLING: 1. 2. 3. 4.
Calibrate each personal sampling pump with a representative sampler in line. Break ends of sampler immediately before sampling. Attach sampler to personal sampling pump with flexible tubing. Sample at an accurately known flow rate between 0.5 and 1.0 L/min for a total sample size of 15 to 225 L. Cap samplers. Pack securely for shipment. NOTE: Refrigerate samples if stored longer than 7 days.
SAMPLE PREPARATION: 5. 6. 7. 8. 9. ”

“ Calibrate daily with at least six working standards. a. Add known aliquots of calibration stock solution to eluent in 50-mL volumetric flasks and dilute to the mark to prepare solutions containing 1 to 60 μg/mL of I ̄ (equivalent to 1.2 to 72 μg/mL of I 2) . ”