NYC-WTC_000201659

NYC 9/11 Public Portal Document

TEM Asbestos fairY Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7567 Filter Type / Filter Area: MCE 385 mm2 Lab Sample #: 3 Grid Opening Size: 0.01124

Client Sample #: 03 Area Examined; 0.04496 mni'

GRID BOX: Magnification: 20,000 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/29/02

Analysis Performed By; MARKPEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor V EDS (Nonadb r No B C M >=C5p - Chrys I Amphibole Nonasb Ambig/ND I No ' Coord I <5p Elemeats)

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: 'J = Positive diffraction pattern properties confcrming to ‘^5°°/’ undissolved filter, overlapped or folded Fotals laboratory idertlfication criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5|j EDS spectrum conforming to iaooratory holes or opaque areas identification criteria observed Chrysotile j AMPHI30LES Amphibole r = Single Fiber J Amosite S = Bundle (<3 fibers <1 liber diameter apart I Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos i Tremolite' M = Matrix Non-Identified I .Actinolite NSD = No Structures Detected

CITY_21MC1OO_O11275762

NYC-WTC_000201661