NYC-WTC_000218082

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet C lient Name: NYC BOE Vplume (liters): 1 720 Lab Group #: 6872 Filter Type / Filter .Area: MCE 385 ;■ Lab Sample #: 15 Grid Opening Size: O.Oi i24

Client Sample #: 15 Area Examined: O.i)449b mn-

GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 ■Analysis Date: 3 1'02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v EDS (Nanadb No F B C M •s5p Chrys Amphibole Nonasb Amoig/ND No Coord <5y Elements) i

SIS TT

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: >/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% I F Ii B iI C i: M 1i v'= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observeo Chrysotile i AMPHIBOLES Amphibole : F = Single Fiber Amosite B > Bundle (<3 libers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster |>3 intersections) Anthophyllite . Non-Asbesios i Tremolite M - Matrix Actinolite ■~Non-Idenufied i NSD = No Structures Detected

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