NYC-WTC_000201111

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name- NYC BOE Volume (liters'): 1920 Lab Group #: 7-878 Filter Type / Filter Area: MGE 385 inm- Lab Sample #: 15 Grid Opening Size: 0.01124 Client Sample #: 15 Area Examined: 0.04496 mm’ GRIB BOX: Magnification: 20,000 GRIB ID: Accelerating Voltage: 100 KeV , # Grid Openings: 4 Analysis Date: 5/26/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure iTor—7 EDS No (Nonads F B C M >=05 p >=5|j Chrys Amphibole; Nonasb Ambig/ND No Coord <5p Hements)'

Struct - > 0-5 n > 5-.1 Aspect Ratio -,r Grid acceptance; Positive diffraction pattern properties conforming to undissoved filter, overlapped or folded Totals ; laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolced or overlapped grid squares <5% , F B C M >5U -v- EOS spectrum' conforming to laboratory ‘ holes or opaque areas ;■ identitotionicriteiis observed Chrysotile i AMPHIBOLES Amphibole Single Fiber- Amosite I - 8 = Bundle (<3 fibers <1 fiber diameter apart ■ Crocidolite Ambiguous - C = Cluster (>3 intersections) Anthophyllite Non-Asbestos Tremolite ; M = Matrix I T Actinolite Non-ldentified , ; tVSD = No Structures.Detected

CITY_21MC100_0112'7 5 414

NYC-WTC_000201125