PCM fiber results lab report, Oct 1998

NYC 9/11 Public Portal Document

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SciLabJob#: 98-10-5279 Client Name: Applied Technology Services, Inc. £ Phase Contrast Microscopy (PCM) Fiber Results A981I3; FitennanHall lOlhTo I3th Floor (DURINGS) 0.' Flow Air Fiber Fibers SciLab Client Rate Duration Filtered Fields Fibers Density^ Cone. TWA pl Sample # Sample # / Location Collected (litcrs/min.) (tnin.) (liters) (Rbcrs/nun‘ ) (Fibersfcc) (Ti (T 16 KL10O398-I6 10/3/98 0 0 0 100 0.3 0.64 Field Blank FoolDotes: / Cd Reporting Notes; rv <t) Fibers/cc cannot be calculated for samples (or blank)) wiih no air volume. (2) Analyst was unable to quantify Ober concentialion because of overloading of paniculate material on die filter. Analyzed by; Larija Srybnaya _ Date Analyzed; 10/3/98 Samses analyzed by NIOSH 74OO(A)MBTllOD7ls5iie #2.i/l5/94; Limil of Detection = 5,5 fiber) per 100 fields or 7 fibers / inm2; This report relates ONLY to the sample analysis expressed as fibers/sq mm of filler area; ND ■ no fibers observed; NA = Not Analyzed; Walton • Beckett gradicule field area 0.00785 mm2; Duration in minutes; TWA = 8Hr TWA calculation assumes zero exposure for remainder of 8 hour period not sampled; Upper 95^1 Confidence Limit (Employer's Compliance Test) - Calculated as a one sided UCL lo deurmioe 95% certainty of compliance with the 0.01 fiber/cc standard; Estimated relative standard deviation; Incralab Sr = 0.270, Interlab Sr = 0.450. ELAP Ml 1480

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