NYC-WTC_000229370

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1832 LabGroiu)^ 8242 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 11 Grid Opening Size: 0.01124

Client Sample #: 13 Area Examined: 0.04496 mm’ GRID BOX: Magpiftcatinn: 20 OOO

GRID IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/23/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v EDS No (Nonafb F B C M >=05 M ’ >=5p' Chrys Ampttibole Konasb Anbig.'NC No Coord <5M Elements]

— / (-0 _

Struct = > 0.5n > 5:1 Aspect Ratio Grid arxBptancs; Positive diftaetton pattern properties cortforming to <50% unefissetired Htw. overlapped or folded Zsiste laboratory identificatkm critaiia observed <10% particulale coirsrage >50% coverage ate toast 20 unfolded orovedapped grid squares <5% F B C M >5m •J= EDS spectrum txmtotming to laboratwy batea or opaque areas identificafian criterta observed V ’ Chrysotile [a/^IboQs'] Amphibole F = Single Fiber Arr.osile i B = Bundle (<3 fibers <1 feer diameter apart i Crocidotite ; . Ambiguous C = either (>3 Intersecbans] Anthophyllite ' Non-Asbestos Treiriofite- M Matrix Actinolite Non-Idcntified NSO =■ No Structures Detected

CITY_21MC100_002902456

NYC-WTC_000229370