NYC-WTC_000212955

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count S et Client Name: NYC BOE V( me (liters): 1936 Lab Group #: 8225 Filter Tvpe Iter Area: MCE 385 mm^ Lab Sample #: 14 Grid I ■iiing Size: 0.01124 Client Sample #: 14 ■ xamincd: 0.04496 mm^

GRID BOX: liricatioii: 20,000 GRID ID: Accelci ig Voltage: 100 KeV # Grid Openings: 4 7 Ivsis Date: 6/23/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length IF ructure N or V EDS No (Nonadb F B C M >=05 p ;>=5m Chrys Amphi; Nonasb Ambg/ND No Coord <5p Elements) 7i^ It a

Struct - > 0.5p > 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to *50% undissolved filter, overta,^ or folded Totals ___ _ laboratoiy identification criteria abserved <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M 7= EDS spectrum conforming to laboratory holes or opaque areas Identification cntena observed otile AMPHIBOLES bole F = Single Fiber Amosite I OUS 0 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster (>3 Intersections) Anthophyllite Nor -'Stos Tremolite M = Matrix Non- . Tied NSD = Ko Structures Detected Actinolite - _i

CITY_21MC1OO_OO28677O6

NYC-WTC_000212955