NYC-WTC_000201924

NYC 9/11 Public Portal Document

TEjVt Asbestos fair) Count Sheet Client Name: NYC BOE Volume filters): 1840 I Lab Group #: 6718 Filter Tvpe / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: ’ 0.04496 ' mm- GRID BOX: Magnification: , 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/18/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor V .EDS No (Nonadb F B C M ■=05p ■hrys Amphibole Nonasb Ambig/ND No. Coord <5 (J Elements;'

Z' 'A

a

Struct = > 0.5)1 > 5:1 Aspect Ratio Grid acceptance: 7= Positive diffraction pattern properties conforming to <5C% undissolved filter, overlapped or folded Totals laboratory identification criteria coserved <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B . C M >5p 7= EDS spectrum conforming to laboratory holes or opaque areas identificaticn criteria observed Chrysotile AMPHIBOLES Amphibole F = Sngle Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous 0 = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Nun-Identified NSD = No Structures Detected

CITY_21MC100_003269648

NYC-WTC_000201924