NYC-WTC_000214863

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count SI Client Name: NYC BOE Yl' 1936 •11 Lab Group #: 8225 Filter Type / .r. MCE 385 mm" Lab Sample #: 12 Grid C 0.01124

Client Sample #: 12 Are;' .. .>1: 0.04496 mm^

GRID BOX: O 20,000 GRIP ID: Accelcr;: .u Vt/ 100 KeV # Grid Openings: 4 A Ivsis 6/23/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID 'ijcture ory EDS No Amphib. Non (Nonadb F B C M >=05 M >=5|j Chrys Ambig/ND Elemenb) No Coord <5p ife r I

Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance: '/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded tals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% B C M >5m >/= EDS spectrum conforming to laboratory holes or opaque areas idenfification criteria observed ( . rysotile AMPHIBOLES A phibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite A liguous C = Cluster (>3 Intersections) Anthophyllite Non-, .sbestos M = Matrix Tremolite Actinolite Non-1 .entified NSD = No Structures Detected

CITY_21MC1OO_OO2871O39

NYC-WTC_000214863