NYC-WTC_000201309

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: OTC BOB Volume (liters): 1920 Lab Group #: 7353 Filter Type / Filter Area: VICE 385 mm- Lab Sample #: 1 Grid Opening Size: 0.01124

Client Sample #: 01 Area Examined: 0.04496 mra-

GRID BOX: Magnification: 20.000 GRID IP: Accelerating Voltage: 100K.eV,: # Grid Openings: 4 Analysis Date: 4/7/02

Analysis Performed By: MICHABT.GORYCKI

GO. Structure Structure Type Length ID of Structure N or B EDS (Noratb No F B C M I >=05 p >=54 Chrys Amphibole . Ncnasb Ambigy'ND Coord I <5p Elements; ■7 f / ¥

L

_______ L_ ____L_J Struct = >0.5n >5:1 Aspect Ratio Grid acceptsncs; 7= Positive diffraction pattern progenies conforming to s50% undissolved fiber, overlapped or folded Totals laboratory identi’ication criteria observed <10% particulate coverage >50% coverage ate least 20.unfolded or overlapped grid squares <5% F B C M -J- EDS .speotrurr conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single "iber Amosite B = Bundle (<3 fiPers <1 fiber diameter apart Crocidolite Ambiguous ■ C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Deiectsd

CITY_21MC100_011275598

NYC-WTC_000201309