NYC-WTC_000229214

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume flitersl: 1824 Lab Group #: 8002 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 4 Grid Opening Size: 0,01124 Client Sample #; 06 Area Examined: 0.04496 mm^ GRID BOX; Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date; 6/8/02

Analysis Performed By; MARKPEYSAKHOV

, GO. Structure Structure Type Length iOofSfructore Nor v EOS No AmpTitoote Ainblg/M) (Nonadb F B C M >=5p Chrys Nonasb I No Coord <5u Elements)

‘r—r

C

Struct = > O.Sp > 5:1 Aspect Ratio Grid acceptance Positive diffraction pattern properties conforming to <50% tindissolved «tar, overtapped or ,Wded Totals l^Mtatory idantlflcation criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or oveiiapped gild squares <5% F B C M >5(j i/= EDS Spectrum conforming to laboratory holes w opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole = = Single Fiber Amosite 8 s Bundle (<3 fibeis <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3lnle<sed!on3) AnthophyWte Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_2IMCl0 0_0 00491724 NYC-WTC_000229214