NYC-WTC_000196883

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 19228 Lab Group #: 9090 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: Grid Opening Size: 0 01124 Client Sample #: 05 Area Examined: 0 04496 mm^

GRID BOX: Magnification: 20,000 GRID ED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length IO of Structure N or v' EDS No (Nonadb F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND

5P- / Kz. No i Coord <5p Elements)

if if

''' Photo No {from T in 5”asbestos containing samples) Gnd acceptance Struct = > 0 Sp .> 5 1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals Positive diffraction pattern properties conforming to <10% paniculate coverage >50% coverage ate laboratory identification cntena observed least 20 unfolded or overlapped gnd squares <5% F B C M >5m holes or opaque areas v'= EDS spectrum coniorming to laboratory Chrysotile Identification cntena observed ; AMPHIBOLES • Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite I M = Matnx Non-Identified NSO = No Structures Detected ' Actinolite . . L.

CITY_21MC100_003058038

NYC-WTC_000196883