NYC-WTC_000200830

NYC 9/11 Public Portal Document

TEM Asbestos fairt Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 7685 Filter Type / Filter Area: MCE 385 mffi- Lab Sample #: .1.1 Grid Opening Size: 0.01124

Client Sample #: 13 Area Examined: 0.04496 mm^

GRID BOX: Magnification: . 20,000 GRID ID: Accelerating Voltage: Too KeV # Grid Openings: 4 Analysis Date: 5/9/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure i Structure type Length ID of Structure N or EDS No (Nonadb F B C M >=05 p ■=5jj Chrys Amphibole Nonasb Ambig/ND No Coord <5p ElementsI

Struct => 0;5p >5:1 Aspect Ratio Grid acceptancs: s

4= Positive diffraction pattern properties ccnformino to undissolved filler, overlapped or folded Totals laboratory identification criteria'observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p T= EDS spectrum conforming to laboratonr holes or opaque areas identification criteria observed Chi'ysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B : Bufidle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_011275188

NYC-WTC_000200840