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HYDROCARBONS, AROMATIC 1501
www.cdc.govHYDROCARBONS, AROMATIC: METHOD 1501, Issue 3, dated 15 M arch 2003 - page 3 of 7 NIOSH Manual of Analytical Methods (NMAM), Fourth Edition 9. Det er mine desorption efficiency (DE) at least once for each batch of charcoal used for sampling in the