NYC-WTC_000207386

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC-BOE . Volume (liters): 1936 ■8011 Filter Type / Filter Area: MCE 385 mm^ Lab'Sample #: 21 Grid Opening Size: 0.01124 Client Sample #: 21 - Area Examined: 0.04496 mm^ ■..

GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: ’6/8/02.

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure. Structure Type Length ID of Structure Nor N' EDS No (Nonadb 1 F B C M >=05 p ■ >=5p Chrys Amphibole Nonasb Ambig/ND No. Coord ■ <5p . Elements)

/S —X- q

Struct = >0.5p >,5:1 Aspect Ratio Grid acceptance: ' '/= Positive diffraction pattern properties conforming to <50% undissolved filter, overiapped 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 =■5^ 'J= 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_003015103

NYC-WTC_000207386