NYC-WTC_000225604

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 6121 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 2 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: 7£<P/7- Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/17/01

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of SIructure N or V EDS No (Nonadb F B C >=05 u :>=5p Chrys Amphibole Nonasb, Ambig/ND ' No I Coord <5p Elements)

u f\ II

0" -----

Struct = > 0.5 p _> 5:1 Aspect Ratio Grid acceptance: 4= Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped 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 >/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile : AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos ’ Tremolite M = Matrix Non-ldentified Actinolite NSD = No Structures Detected

CITY_21MC100_002921636

NYC-WTC_000225604