Document 2q7nQQ5qv54Xg11ZbJb77mpva

"'EpSTPA1NE \P%^J&boyCrfOti& INC. mm mt GSAI AVE. BATON ftOUGE, LA 70820 ENVIRONMENTAL MEASUREMENTS CORPORATION Denham Springs, Louisiana February 22, 1988 Six (6) filter cassette samples were received on February 18, 1988, from Environmental Measurements Corporation, for asbestos fiber count. Fibers larger than 5 microns in length were counted by means of phase-contrast microscopy at a magnification of 400X. The procedure recommended by NIOSH Method 7400A was followed. Pertinent information regarding.fiber counts is as follows: Field Area: 0.00785 mm` (Walton Beckett Graticule) Effective Collecting Area: 385 mm^ (25mm Cassette) 855 mm` (37mm Cassette) Limit of Quantitation: 10 fibers/100 fields Limit of Detection: > Average Blank Count @ Detection limits are based upon a minimal count of fibers/100 fields. 10 Results are as follows: SamDle ID. Fibers (>5um) Observed No. of Fields Observed Fibers per Volume of Air (D Fibers (>5um) per c.c. of Air P-0217: (#1) 01A (#1) 01 (#1) 02 03 04 05 *7 100 mt 100 7 100 7 100 7 100 o 100 (#1) High amount of particulate matter may have affected fiber count. l/j Philip w. West, Ph.D. Laboratory Director DO A llhB'14 r nMF T nFNT T A1