NYC-WTC_000202557

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WC BOE i Volume (liters): 1928 Lab Group #: ;873G )t Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 8 Grid Opening Size: 0.01124

Client Sample #: 08 Area Examined: 0.04496 mm’

GRID BOX: Magnifieation: 29 000 GRID ED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 8/22/02

Analysis Performed By: ROMAN PEYSAKHOV

GO; Structure Siructure Type Length ID of Structure N or y EDS^ A ' (Nonadb ' No A F B C M .>-05 p t .; I>=5p Ghrys Amphibole Nonasb Ambig/ND Elements) ■ No Coord I <5p

sfl

Stiuct = >b.5p > 5:1 Aspect Ratio a Grid acceptance: Positive ditfracticn paterri properties conforming to und^olved filler, ove^edorfolded A AA Totals iaboratoiy identification criteria obsenzed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid,squatesi<5% F B G M >5p< ;- >/= EDS spectrum eontorming to laboratory A holes or opaque areas identification criteria observed. Chrysotile AMPHIBOLES r . Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous •C = Cluster (>3 Intersections), Anthophyllite I Non-Asbestos Tremolite M = Matrix A Non-Identified Actinolite NSD = No Structures Delected

CITY_21MC10 0_C103273397

NYC-WTC_000202557