NYC-WTC_000228735

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Clie»t Name: NYC BOE Volume niters): 1800 Lab Group #: 7614 Filter Type / Filter Area: MCE 385 Lab Sample #: 8 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 AnalysisDate: 5/2/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N cr l EDS No >^0^0 :>=5iJ {Nonadb F B C M Chrys Afitpwboie Nonasb Ambig/ND No Coord <5u Elements)

-T Y?

1

Struct = > 0,5u > 5:1 Aspect Ratio Grid acceptance: t/s Positive diffraction pattern properties conforming to <S0% undissQlvBd fitef, ovedapped or folded Totals laboratory idenlification criteria observed <10% particulate coverage >50% coverage ate

v= £03 spectrum conforming to laboratory least 20 unfoltJad or overtspped grid squares <5% F B 5 C M holes or opaque areas identiflcabon criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite t" B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster Intersections) Anthophyllite Non-Asbestos Tremolite M Matrix Actinolite Non-Identified NSD = No Structures Delected

CITY_21MC100_002901593

NYC-WTC_000228735