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9100 - Lead in Surface Wipe Samples

NIOSH Manual of Analytical Methods (NMAM), Fourth EditionLEAD in Surface wipe Samples9100Pb MW: CAS: 7439-92-1 RTECS: OF752000 METHOD: 9100, Issue 2 EVALUATION: NOT APPLICABLEI ssue 1: 15 August 1994 Issue 2: 15 May 1996 PURPOSE: Determination of Surface contamination by lead and its OFDETECTION: 2 g Pb per sample ( g/cm for 100-cm area) by flame AAS [1] or ICP [2]; g Pb per sample ( g/cm for 100-cm area) by graphite furnace AAS [3,4].FIELD EQUIPMENT:1. Resealable hard-walled sample containers, , 50-mL plastic centrifuge tubes [5].2. Wipes: Disposable towellettes moistened with a wetting 1: Wipes selected for use should contain insignificant (<5 _g Pb) background lead levels[4,5]. Wipes should be individually wrapped and pre-moistened; for example, Wash n DriTM hand wipes (or equivalent).NOTE 2: Whatman filters should NOT be used for wipe sampling, because they are not sufficiently Powderless plastic gloves, Template, plastic or steel; 10 cm x 10 cm or other standard Tape :1.

LEAD in Surface Wipe Samples: METHOD 9100, Issue 2, dated 15 May 1996 - Page 2 of 2 Include appropriate media and reagent blanks. MEASUREMENT: Depending on detection limit required, use the procedures of NIOSH methods 7082 (Lead by flame AAS) [1], 7300 (Elements by ICP) [2], or 7105 (Lead by graphite furnace AAS) [3], or equivalent methods [6,7].

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