NYC-WTC_000217633

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sht Client Name: NYC BOE Voh: 1 8 Lab Group #: 8213 Filter Type /1 3 385 mm" Lab Sample #: 12 Grid Oi 124

Client Sample #: 15 Aren c :!'6 mm" M-.i GRID BOX: li 2 00 GRID ID: Acceleraii 1' I KeV # Grid Openinns: 4 Ai’- 6 702

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ©of or V EDS No (Nonadb F B C M >=05 u >=5|j Ctirys Amphibolu Am I'lD I No ' Coord <5u Elements)

1

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: 4= 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 2 M >5u t/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Cl: I AMPHIBOLES 1 Air F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Am C = Cluster (>3 Intersections) Anthophyllite Non-z\ Tremolite M = Matnx ■ Non-Itl Actinolite NSD = No Structures Delected

CITY_21MC100_002877473

NYC-WTC_000217633