NYC-WTC_000229238

NYC 9/11 Public Portal Document

TEMAsbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1848 Lab Group #: 8024 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 15 Grid Opening Size: 0.01124 Client Sample #: 17 Area Examined: 0.04496 GRLDI^.: Magnification: 20,000 GRIPEP; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/9/02

Analysis Performed By: MARK PEYSAKHOV

GO. Stnicture Structure Type length ID of Structure N or v EDS (Nonadb No F B C M >=05 p Ctirys Amphibole Nonasb Ambig/ND No Coord <5p EtemenS)

Struct = >0.3p >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved liter, overlapped or foided Totals laboratory identification criteria observed <10% particulaiB coverage >50% coverage ate least 20 untoWed or overlapped grid squares <5% F B C M >5tJ ■J= EDS spectrum oonforming to laboratoiy holes or opaque areas identtGcation criteria observed Chrysotile Famphiboles Amphibole F = Single Fiber Amosite 6 = Bundle [<3 ftoers <1 fiber diametw apart Crocidolite Ambiguous C = Clu^r {>3 Intersecttons) Anthophyllite Non-Asbestos Tremolite M = Matrw Actinolite Non-Identified NSD = No Stnjctur» Detected

CITY_21MC1OO_OOO491783 NYC-WTC_000229238