NYC-WTC_000199296

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1912 Lab Group #: 8809 Filter Type / Filter Area: MCE 385 mm- Lab.Sample 12 Grid Opening Size: 0.01124

Client Sample #: 12 Area Examined: 0.04496 mm- GRID BOX: Maonit'ication: 20,000 ■ GRtP ID : Acceleratino Voltape: 100 KeV Grid Openings: 4 Analysis Date: 9/5/02

Analysis Perfoi'med By; MARK PEYSAKHOV

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

---- 5 . xe -— A/. J’

i__ ! I I

Struct = > 0.5g > 5:1 Aspect Ratio Grid acceptance:

n'= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Tot^ <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F B C M >5p V=' 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 = Closter :>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix. Actinolite Non-Identified NS5 = Nd Structures Detected

CITY_21MC100_003049020

NYC-WTC_000199307