NYC-WTC_000223679

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet ( lient Name: NYC BOE Volume (liters): ! 920 7382 Filter Type / Filter .Area: MCL . Lab Sample #: 5 Grid Opening Size: 0.01124 ( lient Sample #: 05 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID. Accelerating Voltage: 100 KeY # Grid Openings: 4 Analysis Date: 4 11 u2

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure T/pe i Length IC d Structure \ or No F B C M -06 p =5p Chrys j Ampruoole i Nonasb j Amor No Coord <5m I I _ i ;

II Vt

Struct = :• O-Sp > 5 1 Aspect Ratio Gria acceptance’

J’ Positive ditfraction pattern properties corformlng to <60% undissolved filter overlapped or folded Totals laopraiory ideniitlcation criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% " F B C M V < EDE spectrum conforming to laccratcry holes or opaque areas identification criteria observed Chr, sonic •AMPHIBOLES •Amphibole r = Single Fioer Amosite S ■■ Eundle (<3 fibers <1 fiber diameter apar Crocidolite Ambiguous C = Duster p3 Intersecaonsi Anthophyllite Non-Asbesros Tremolite 1.1 = Matrix I \on-idennfied Actinolite NSD = No Structures Delected

CITY_21MC1OO_OO2919737

NYC-WTC_000223679