NYC-WTC_000201259

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client.Name: NYC BOE Volume (liters): 1840 Lab Group #: 7325 Filter Type / Filter Area: MCE 385‘mm- 6 Grid Opening Size: 0.01124

Client Sample #: 06 Area Examined: ■.■0.04496 mm’

GRID BOX: Magnification: 20,000 GRIDID: Acceleratins Voltage: 100 KeV ff Grid Openings: 4 Analysis Date: 4/4/02, ■

Analysis Performed By: MARK, PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N'or EDS (Nonadb Nc F B c- M >=05p i - : '=5(J {- Chrys l Amphibole' Nonasb Ambig/ND . Elements) Slo Coord <5k

-VVY

Struct =.> 0,5u > 5:1 Aspect Ratio Grid gceeptance: 7= Positive diffraction pattern properties conformirg to <5070 undissolved filter, overlapped or folded Totals laboratory identification criteria obseo/ed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p N= EDS soectrun conforming to laboratory holes or opaque areas identification criteria obseived Cln-ysotile AMPHIBOLES Amphibole F = Sirigia Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apad Crocidolite Ambiguous C = Cluster .t>3 Irtersecticns) Anthophyllite Non-Asbestos Tremolite M - Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_011275537

NYC-WTC_000201264