NYC-WTC_000219532

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1816 Lab Group #: 6932 Filter Type / Filter .Area: •MCE 38.5 mm- Lab Sample #: 10 Grid Opening Size: 0.01124

Client Sample #: 12 Area Examined: 0,04496 mrr.-

GRID BOX: Magnil'ication: 20,000 GRID ID: ■Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3..4/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID oi Structure \ or . EDS ■r (Monado No F B C M VIVA I>=5p Chrvs Ampniboie NonasD Amoig/ND No Coord <5p Elements)

l__i__________ i___________ 1__________ i Struct = > 0,5p > .S: 1 Aspect Ratio Grid acceptance.

<= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or 'odec Totals <10% particulate coverage >50% coverage ate_____ laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F : B i C • M EDS spectrum conforming to laboratory holes or opaque areas identification critena observed Chivsotile ■ .AMPHIBOLES ■Amphibole ; F = Single Fiber Amosite S = Sundle (<3 fibers <1 liber diameter apart Crocidolite Ambiguous i C = Cluster (>3 Intersections) Anthophyllite ■'.-Asbestos'! Tremolite M = Matrix Actinolite j Non-Identified NSC = No Structures Detected

CITY_21MC100_002881225

NYC-WTC_0002 19532