NYC-WTC_000228762

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group 7636 Filter Type Z Filter Area: MCE 385 mm’ Lab Sample #; 7 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0.04496 GRID BOX: Magnification: 20,000 GRID ID: I Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/4/02

Analysts Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Norv EDS No (Nonacfb F 8 C M >=05 u Chrys Amphibole Nonasb AmbigMO No Coord <S)J Elements)

J z

1 1 ■J

Struct = > O.Sp .> S:1 Aspect ftatio Grid acceptance: ■v'= Positive diffraction partem properties conforming to <50% undiSMived Alter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

V - EDS spectrum conforming to latsoratory least 20 unfolded oroveitapped grid squares <5% Tf B C M holes or opaque areas idendficatton criteria observed Chrysotile AMPHIBOLES ' Amphibole F - Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Closter <>3 Irtersecfcns) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002901640

NYC-WTC_000228762