NYC-WTC_000219541

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1824 Lab Group #: 6942 Filter Type / Filter Area: MCE 385 tr.m- Lab Sample #: 9 Grid Opening Size: 0.01124

Client Sample #: Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20.000 GI^D ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3 6,02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or A EDS No F I 8 C M i Chrys Amphibole Nonasb Ambig.'ND I ' No Coord <5p I "l

L-

i Struct->0.3p >5:1 Aspect Ratio Grid aaeptance: 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% ! F ■ B 1 C M tCS spectrum conforming to iaborato^ holes or opaque areas L Identification criteria observed I Chrysi^tile । AMPHIBOLES Ainphiboie F = Single Fioer Amosite 6 BLndle i<3 fibers <1 liber diameter apart Crocidolite Ainbiuuoiis I C - Cluster ;>3 intersecaons) Anthophyllite Non-.Asbesios Tremolite M ~ Matrix j Non-ldentified Actinolite NSD = No Slructures Detected

CITY_21MC100_002881247

NYC-WTC_0002 19541