NYC-WTC_000225321

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 6934 Filter Type / Filter .Area: MCE 385 mm- Lab Sample #: 20 Grid Opening Size: 0.01124

Client Sample #: 20 Area Examined: 0.04496 mm- GRID BOX: iVlauiiifieation: 20,000 GRIDID: Accelecatiiig Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/5/02

Analysis Performed By: --------------------------- ROMAN-PE YS AKHCV-------

GO. Structure Structure Type Length ID of Structure N or 9 EDS No (Nonadb F ■ B C M >=5(j Chrys Amphibole , Nonasb Amhig/ND No Coord <5u ■ Elements)

St if A

i .

Struct = > O.Op > 5:1 Aspect Ratio Grid acceptance:

Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5U EDS spectrum conforming to laboratory holes or opaque areas. identification criteria observed Chrysotile AiMPHIBOLES Amphibole F = Single Fiber Amosite Ambiguous B = Bundle {<3 fibers <1 fiber diameter apart Crocidolite C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Uleniiried , Actinolite NSD = No Structures Detecied

CITY_21MC100_002921335

NYC-WTC_000225321