NYC-WTC_000228322

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE 1920 Volume niters): Lab Group #: 6354 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 11 Grid Opening Size: 0.01124

Client Sample #: 1! Area Examined: 0,04496 mm-

GRIP BOX: Magnification: 20 000 GRJDID: Accelerating Voltage: 100 Ke V # Grid Openings; 4 Analysis Date: 1/17/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v EDS (Nonadb No F B C W >=05 p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

30 A 1 t

n

-I !

Struct' > 0.5p > 5; I Aspect Ratio Grid acceptance; ^= Positive diffraction pattern properties conforming to <60% undiasotved Alter, overlapped or folded Totals laboratoiy identificalion criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B j C I M ?5p 'f = EDS spaarum conforming to laboratory holes or opaque areas j KJentitofon criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite Crocidolite Ambiguous 6 = Bundle (<3 Abets <1 Aber diameter apart C = Cluster (>3 Intereections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified

CIT Y_2 IMC10 0_0 0 2 8 9 9 9^^ NYC-WTC_000228322