NYC-WTC_000202565

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume filters): 1936 Lab Group #: 8719 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: / Grid Opening Size: 0.01124 Client Sample #: 07 Area Examined: 0.04496 mm^ GRID BOX: Magnification; 20 000 GRID ID: xAccelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 8/20/02

Analysis Performed By: ROMAN PEYSAKHOV

SO. Siructure Structure Type Length , ID of Structure Mor 7 EDS !-• Mo F B c nr >=05 p >=5m Chrys A.Tpniholp Nofiasb Ambig/ND (Nonadb Elements)

Ar No ■.Coord <5p

Na V- ' Zi

'i f 1 I J ■

Struct Aspect Ratio • Gria accsptarce:

0- Posti'« ditfracton oattern properties sonforming to' <50% jndissoived filter, overlapped or folded Totals <10% paniculate coverage >50% coverage ate laboratoiT/ identificatior, criteria observed least20 unfolded or cvetlapoeo grid squares <5% ------ I p , g C M >5(j ■'('= EDS cfccti'ji corforming to laboratory holes or opaque areas .Identification criteria observed ~ Chrysotile AMPHIBOLES i Amphibole ) r = Single -iber Amosite- I S = Buncle (<3 fibers <1 fiber oiameter apart ’ Crocidolite Ambiguous C = Cluster (>3 intersectionsi Anthophyllite ' Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_003273501

NYC-WTC_000202565