NYC-WTC_000200275

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume niters): 1920 Lab Group #: 72S5 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 01 Area Examined: 0.04496 mm^

GRID BOX: Magnification: - 20,000 GRID ID: / Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/31/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type Length ,D of Structure Nor 4 EDS No (Nonadb F B I C M >=05 p ■ >=5p Chrys Amphibole Nonasb Ambig/ND Eiements) No Coord <5p

x X1

-

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: 4= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals iaboratcry identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfoided oroveriaoped grid squares <5% F B C M I >5p 4= EOS spectrum conforming to laocraton/ holes or opaque areas identification criteria oosen/ed Chrysotile ; AMPHIBOLES Amphibole F = Single Fiber ' Amosite 6 - Bundle (<3 fibers <1 fiber diameter apart 1 Crocidolite j Ambiguous C = Cluster (>3 Intersections) i Anthophyllite I Non-Asbestos i T remolite . M - Matrix -Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_011274760

NYC-WTC_000200275