NYC-WTC_000217631

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sht Client Name: NYC BOE Volii 08 Lab Group #: 8213 Filter Type /1 CE 385 mm^ Lab Sample #: 10 Grid On 1124 Client Sample #: 13 Area i 496 mm^

GRID BOX: Mir ,U00 GRIDID: Acceleratii 'OKeV # Grid Openings: 4 An; 22/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of£ EDS No >=051j '>=5)3 Amphibole (Nonadb F B C M Chrys ig/ND No Coord <5p Elements)

Struct = >O.5p > 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% C , M >5|J EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chr. ; AMPHIBOLES Am|- F = Single Fiber Amosite ; B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite ' Amb C = Cluster (>3 Intersections) Anthophyllite ! Non-As Tremolite M = Matrix ■ Non-Ide: Actinolite J_ NSD = No Structures Detected

CITY_21MC100_002877471

NYC-WTC_0002 17631