NYC-WTC_000194624

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Voli. lie (liters): 1928 Lab Group #: 7851 Filter Type/ ? Her Area: MCE 385 mm" Lab Sample #: 9 Grid O: iiiii«j Size: 0.01124 Client Sample #: 9 Are:i 3vaiiiined: 0.04496 GRID BOX: ! nification: 20,000 GRID ID: Accelera; u Vi)lta«^e: too KeV # Grid Openings: 4 Ai. iv.si.s Date: 5/25/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID c l.'iicture N or EDS No >=05 g •>=5p Amphibi.; (Nonadb F B C M Chrys Noiiasu Ambig/ND No Coord <5g Elements)

A

Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undisso^ed 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 >5p >/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed C. .,oiile AMPHIBOLES 1 A; ■bole : F = Single Fiber Amosite S = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Al.. ■ mus ! C = Cluster (>3 Intersections) Anthophyllite Non-. JStOS Tremolite M = Matrix Non-L iiled Actinolite NSD = No Structures Detected

CITY_21MC100_0 03096547

NYC-WTC_000194624