NYC-WTC_000211751

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1805 Lab Group #: 8243 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 8 Grid Opening Size: 0.01124

Client Sample #: 08 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/23/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length 10 of Structure M or ’Z EOS No (Nonadb F B C M >=05 p :>=51J Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

a ci.

Ar

Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to *50% undissolved filler, overlapped or folded Totals Iaborato7 identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or ovedapped grid squares <5% F B C M >5m ■/= EOS spectrum conforming to laboratory holes or opaque areas identification criteria obsen/ed Chrysotile i AMPHIBOLES I Amphibole F = Single Fiber Amosite ' B = Bundle (<3 fibers <1 fiber diameter apart ; Crocidolite ' Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_002865153

NYC-WTC_000211751