NYC-WTC_000199434

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Yame: NYC BOE Volume (liters): 1928 Lab Group #: 8760 Filter Type / Filter Area: MCE 385 mm’ Lad)Sanin1ej^ 8 Grid Opening Size: 0.01124 Client Sample #: 8 Area Examined: 0.04496 mm-

GRID BQzX: Magni tjcation: 20,000 GRID ID: SGridOpeming^ 4 :e Accelerating Voltage: Analysis Date: 100 KeV 8'25/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or ''' 1 1 - -------—I (Ncnadb No F B C >=5(j Chrys 1 Amphibole Nonasb Amoiq/ND , I

v-as No Coord <5p I Etementsi i

/'2X5 —

I I Siruci = 0,5p >5:1 Aspect Ratio Grid acceptance

V = Positive diffraction pattern properties conforming to <50% undisso.ved filter overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolced or overlapped grid squares <5% [ F ' B ' C ' M >5u \= EDS spectrum conforming to laboratory holes or opaque areas j. Identification criteria observed Chrysotile AMPHIBOLES Amphibole F'= Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous 'C - Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified j __ L NSD = No Structures Detected

CITY_21MC100_0 03033954

NYC-WTC_000199434