NYC-WTC_000229099

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume fitters): 1856 Lab Group #: 7885 Filter Type / Filter Area: MCE 385 Lab Sample 14 GridOnening Size; 0.01124 Client Sample #: 16 Area Examined: 0.04496

GRIP BOX ; Magnification: 20,000 GRID IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/27/02

Analysis Performed By: MARK PEYSAKHOV

GO, Sfructurs Structure Type Length iBofStrutture n or tl EDS (Nonadb i No F B C M >=05 u :>=5jj Chrys Amphibole Nonasb Ambg/ND Elements) ' No Coord <5m

i

1 i *

1

Struct=>O.Sp >5:1 Aspect Ratio Grid acceptance: 4= Positive diffraction pattern properties conforming to <50% unbissolved fitter, overlapped or folded Totals iaboratory identifieation criteria observed <10% particulate coverage >50% average ate least K unfolded or overlapped grid squares <5% F B C M ! >5tJ '/= EOS spaclrum confarming to laboratory holes or opaque areas ----- i------- idenliScatiofr critens observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Ainosite Croddotite Ambiguous 8 = BonOle inS fibers <1 fiber diameter apart C = Ctoster(>3 Intersections) Anthophyllite Non-Asbestos Tremolite M - Matrix Actinolite Non-ldeniificd NSD = No Structures Detected

CITY_21MC100_002902199

NYC-WTC_000229099