NYC-WTC_000229930

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6699 Filter Type / 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: 2/16/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type j Length ID of Structure N or / EDS

No Coord No c F■ I B I C I Mf' '■ >=05 p <5p >=5|j Chrys Amphibole Nonasb Elements)

^<^7 “J

Struct =- > <) .5u. > 5; I Aspect Ratio Grid acceptance:

v= Posit ve diflract on pattern properties conforming to <50% undissolved filter, overlapped or folded Totals aboratory identilication criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% ‘ F B \= EDS jpecdum contorming to laboratory holes or opaque areas dentlficatiori cniena observed Chrysotile AMPHIBOLES Amphibole p = Single Fiber Amosite 3 = Bundle "3 'ibers <: fiber diameter apart Crocidolite Ambiguous ' C = Clusler ?3 ntersections) Anthophyllite Noii-.Asbestos Tremolite M = Matrx Non-Identified Actinolite NSD = No .St'xtures Detected

CONFIDENTIAL, CITY_21MC100_003386270 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000229935