NYC-WTC_000225966

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1944 Lab Group #: 6274 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 13 Grid Opening Size: 0.01124 Client Sample #: 13 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: 3377^ Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 1/6/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure T ype Length ID of Structure Norv EDS No >=05 p •"I >=5(J (Nonadb F B C M Chrys Amphibole ■ Nonasb Ambig/ND No Coord <5p Elements)

ft/ ZZTSZES2 ,2-Y-g- //

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: yl- Positive diffraction pattern properties conforming to <50% undissoived filter, overlapped or folded Tot^ 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 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 Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_000622767 NYC-WTC_000225966