NYC-WTC_000228882

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume filters): 1808 Lab Group #: 7723 Filter Tvue / Filter Area: MCE 383 mm’ Lab Sample #: 12 Grid Opening Size: 0.01124 Client Sample #: 14 Area Examined: 0.04496 mm‘

GRID BOX: Magnification: 20,000 GRIP ID; .^^7^ Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 5/12,^02

Analysis Performed By: MARK PEYSAKHOV

GO. Sbucture Structure Type Length ID of Structure N or V CDS (Monadb No B C M >=05 p 7=5(7 Ch^s AmphitwSe Norest) AmeigtND No Coord <5p Eiements)

1 i

Struct = > O 5u >5:1 Aspect Ratio Grid acceptance: )/= Positive diffracton pattern properties conforming to <50% jndssoiued filter, overtappec or folded Totals laboratory idendflcetion criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtspped grid squares <5% F B C MT^ '/= EDS spectrum cortforming to laboratory holes or opaque areas identiRcation 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 NSD = Ho Structures Detected

CITY_21MC100_002901837

NYC-WTC_000228882