NYC-WTC_000208038

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 2040 Lab Group #: 8808 Filter Type / Filter .Area: MCE 385 mrri- Lab Sample #: 5 Grid Opening Size: 0.01 124 Client Sample #: 07 Area E.vamined: 0.04496 mm’ GRID BOX: /5 9i Magnification: 20,000 GRID ID: ■Accelerating Voltage: too KeV #GridOpening^ 4 Analysis Date: 9/5/02

Analysis Performed By: /w ROMAN PEYSAKHOV

GO. Structure; Structure Type Length ID of Structure N or EDS No >=05 p :>=5p (Nonadb F B C M Chrys Amphibole Ncnasb Ambig/ND No Coord <5p Elements)

yr T n z tr Vgt /(■

0 —

5

Struct = > 0.5(j .>5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5!J <= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C rrCluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M 7 Matrix ■ NSD = No Structures Detected Actinolite \on-identified r CITY_21MC100_003018599

NYC-WTC_000208038