NYC-WTC_000201936

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume filters): 1870 Cab Group #: 6764 Filter Type / Filter Area: MCE ■ 385 mm" Lab Sample #: 15 Grid Opening Size: 0.01124

Client Sample #: 15 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/21/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type. Length ID cf Structure N or V EDS No >=05 p ; '=5p Nonasb (NonadD F B C M Chrys Amphibole Ambig/ND No Coo.rd <5p Elements!

/ <30- 3

1®.. -

Struct = > 0.5p .> 5:1 Aspect Ratio Grid acceptance: • 7= Positive ciffraction pattern propertes conforming to <50% 'undissolved filter, overlapped orfolded Totals laboratory identification criteria observed <10% paniculate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C i M >5p V= EDS spectrum conforming to laboratory ■ holes or opeqiie areas identification criteria obsen/ec Chrysotile AMPHIBOLES Amphibole F = Single riber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous . . e. = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite 5 M -Matrix i Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003269724

NYC-WTC_000201936