NYC-WTC_000203445

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6572 Filter Type / Filter Area: Ml E 385 I'.im- Lab Sample #: 6 Grid Opening Size: 0.01124

Oil'll Sample #: 6 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 CRIDlID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2:6/02

Analysis Performed By; MARK PEYSAKHOV

GO Structure Structure Type Length D of Structure Nor EDS (Noradb No F B C M >=05 u >=5tJ Chrys Amphibole Nonasb Ambig/ND \o Coord <5u Elements)

er.

Struct = > O.5(j > 5:1 Aspect Ratio Grid acceptance; , = Fositive diffraciicn pattern properties conforming Io ^ndissolved filter, ovedapped or folded Totals laboratory identification criteria obser/ed <10% particulate coverage >50% coverage ate least 20 unfolded or ovedapped gnd squares <5% F B C M EDS spectrum conforming ;o laboratory holes or opaque areas .denti'icat on critena observed Chrysotile AMPHIBOLES Amphibole ) - = S nqie Elbe' Amosite S = Sure e 1< 1 tibers <1 liber diameter apart Crocidolite Ambiguous C = Cluster i>3 inteisections) Anthophyllite j Non-Asbesto^ Tremolite M = Matrix j Non-Identified [ Actinolite NSD = No Structures Detected

CITY_21MC100_003068254

NYC-WTC_000203450