NYC-WTC_000229271

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volnme (liters'): 1808 Lab Group #; 8085’ Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 1 Grid'LgraaiUiiulatoe: 0.01124 Client Sample #; 03 Area Examined: 0.04496 mm^ <2^ GRID BOX; Magnification: 20, Kia GRID IP: C Accelerating Voltage; 100 KeV # Grid Openings; 4 Analysis Date; 6/13/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of structure Nor v EOS (Nonadb No F B C M >=05 M >=5p Chrys Anx^Nbote Nonasb Ambis^/ND No Coord <5p Elements)

2: <7

Struct = > 0.5p > 5; 1 Aspect Ratio Grid aooeptWKe: -^= Positive diffrsedon pattern properties conforming to <50% undissobed Wer, overlapped oftoidod Totals laboratory identtfication criteria observed <10% parilojiab covers >50% coveraee ato least 20 unfolded or overi^iped grid squares <5% F B C M >5p '^= EOS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Aruoslte B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) AnttrophylBte Non-Asbestos Tremolite M = Matrix Actinolite Non-Idcntified MSD = No Structures Detected

CITY_21MC1OO_OOO491841 NYC-WTC_000229271