NYC-WTC_000191884

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 8192 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 1 Area Examined: 0.04496 mm^

GRTD BOX: Magnification: 20,000 GRIP IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/20/02

Analysis Performed By: MARK PEYSAKHOV

GO- Structure Structure Type Length ID of Structure N or 'Z EDS i I No (Nonadb F B C M >=05 u :>=51J Ch^s Amphibole Nonasb Ambig/ND ; No ; Coord <5p Elements)

Struct = >0.5u >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <6% F B C M >5u EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile pAMPHIBOLES' 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_003091881

NYC-WTC_000191884