TEM Asbestos air sample results, NYC BOE, Feb 2002

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NY'C BOE Volume /liters): 1816 Lab Group #: 6705 Filler Type / Filter Area: MCE 3S5 mm= Lab Sample #: 13 Grid Opening Size: 0.01124 Client Sample #: 16 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/17/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of structure N or V EDS No (Nonadb F B C M >=05 u >=5(j Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

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1

Struct = >0.511 >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern praperties conforming to ^^0% undissolved filter, overiapped or folded Totals 10% particulate coverage >50% coverage aie laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% ' F B j C M i >3U EDS spectrum co.ntorming :o laborato^ holes or opaque areas identification crite.na observed Chrysotile I ■AMPHIBOLES Amphibole j ? = Single Fiber Amosite 3 = 3‘jndle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster >3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix i Non-Idenrified i NSD = No Structures Detectec Actinolite 1. , _ . ___ _ L L i

CITY_21MC100_003103275

NYC-WTC_000183811