NYC-WTC_000229272

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume niters): 1816 Lab Group #: 8085' Filter Type / Filter Area: MCE 385 mm^ Lab Sampie #: 3 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined; 0.04496 mm* GRIP BOX; Magnification: 20,000 GRIP ID: Accelerating Voltage; 100 KeV # Grid Openings; 4 Analysis Date; 6/13/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length lOofSIructote Nor V EOS (Nonadb No F B C M >=05 M Chrys AnvMuls Nonssti AmbQMD No Coord <5p Eiemants)

g XL? X—-C—

J

Struct = > O Sp > 5:1 Aspect Ratio Grid acceptance; Pwtfftredtftaraiori pattern properlies eoritotming to <50% undissotvsd tiller, overtapped or folded Totals laboratory identtfication crttaria observed <10% particulate coverage >50% coverage ale least io unfolded or overlapped grid squares <5% F B C M >5p ■^-EDSspeOnim confonning to laboratory hcries Of opaque areas identifscation criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actincllte Non-Mentified NSD = No Structures Detected

CITY_2IMCl0 0_0 00491843 NYC-WTC_000229272