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METHYL ETHYL KETONE PEROXIDE: METHOD 3508, Issue 2, dated 15 August 1994 - Page 4 of 5 After 4 hrs at 1 L/min airflow through impingers containing MEKP standards in DMP, less than 10% of the MEKP carried over from the front to the backup bubbler. The RSD of slopes of the calibration line determined from three levels approximately to 100, 170, and 210 µg/10 mL sample obtained over a six-month period was 9.8%. When the standards and samples were run on the same day, the RSD was 5.2%.

REFERENCES: [1] [2]

NIOSH Manual of Analytical Methods, 2nd. ed., V. 6, P&CAM 331, U.S. Department of Health, Education, and Welfare, Publ. (NIOSH) 80-125 (1980). Okenfuss, J. R. and J. C. Posner. Investigation of an Air Sampling and Analytical Method for Methyl Ethyl Ketone Peroxide, available as Order No. PB 81-167868 from NTIS, Springfield, VA 22161 (1980).

METHOD REVISED BY: Judd C. Posner, Ph.D., NIOSH/DPSE and Julie R. Okenfuss.

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94