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NITROGLYCERIN and ETHYLENE GLYCOL DINITRATE: METHOD 2507, Issue 2, dated 15 August 1994 - Page 4 of 4 No breakthrough occurred with the NG samples up to an average sample volume of 261 L. Sample stability was evaluated with 2.6 μg EGDN per sample and 9.0 μg NG per sample for 25 days at ambient temperature. No losses were observed for either compound [1].

REFERENCES:

[1] Sampling and Analysis of Four Organic Compounds Using Solid Sorbents, Final Report, NIOSH Contract No. HSM-99-73-63, Southern Research Institute, Birmingham, AL.

[2] Documentation of the NIOSH Validation Tests, S216, U.S. Department of Health, Education, and Welfare, Publ. (NIOSH) 77-185 (1977).

[3] NIOSH Manual of Analytical Methods, 2nd. ed., V. 3, S216, U.S. Department of Health, Education, and Welfare, Publ. (NIOSH) 77-157-B (1977). [4] Ibid, V. 1, P&CAM 203, U.S. Department of Health, Education, and Welfare, Publ. (NIOSH) 77-157-A (1977).

[5] Criteria for a Recommended Standard...Occupational Exposure to Nitroglycerin and Ethylene Glycol Dinitrate, U.S. Department of Health, Education, and Welfare, Publ. (NIOSH) 78-167 (1978).

[6] NIOSH/OSHA Occupational Health Guidelines for Chemical Hazards, U.S. Department of Health and Human Services, Publ. (NIOSH) 81-123, available as GPO Stock #17-033-00337-8 from Superintendent of Documents, Washington, D.C. 20402.

METHOD WRITTEN BY:

Martha J. Seymour, NIOSH/DPSE; S216 validated under NIOSH Contract CDC-99-74-45. NIOSH Manual of Analytical Methods (NMAM), Fourth Edition 8/15/94