NYC-WTC_000201972

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume fliters): 1800 Lab Group #: 7230 ■ i Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 12 Grid Opening Size: 0.01124 Client Sample #: 12 Area Examined: 0.04496 GRID BOX: 0X1 Magnification:20,000' GRID ID : Accelerating Voltage: .100 KeV # Grid Openings: 4 Analysis Date: 3/27/02 7

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or y , EDS No (Nonadb/ F B C M >=05 p I “ =5|j Chrys Amphibole Nonasb -Ambig/ND No Coord <5p Elements)

(f

Ztfc .g.

2-7

!.

Struct = > 0.5g .>5:1 Aspect Ratio Grid acceptance: Posith/e diffraction pattern properties conforming to' undissolved filter, overlapped or folded Totals laboratory identificaticn criteria observed ■ *:1O% particulate coverage >50% coverage ate least 20 uniolded or overlapped grid squares <5% F, B C M >5u '/= EDS spectrum cenforming to laboratory holes or opaque areas identification criteria observed Chrysotile 'AMPHIBOLES^ ■ Amphibole F = Single Fiber 7 Amosite i B- = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) : Anthophyllite Non-Asbestos iTremolite 1 M = Matrix. ' ; : i ■ Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_0 11275899

NYC-WTC_000201972