NYC-WTC_000207876

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name NYC BOE Volume (liters) 1920 Lab Group # 8730 Filter Type / Filter Area MCE 385 mm^ Lab Sample # 3 Grid Opening Size 001124 Client Sample # 03 Area Examined 0 04496 mm^ GRID BOX Magnification 20 000 CRIP ID Accelerating Voltage too KeV # Grid Openings 4 Analysts Date 8/22/02

Analysis Performed By ______ _____________ M3 ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure NorN EDS No (Nonadb F B C M > 05 m :>=5|J Chrys Amphibole Nonasb Ambig/ND , No Coord <5m Elements)

n

Struct = > 0 5p >51 Aspect Ratio Gnd acceptance n/ Positive diffraction pattern properties conforming to *5°'' undissolved filter overlapped or folded Totals laboratory identification critena observed <10/ particulate coverage >50 / coverage ate least 20 unfolded or overlapped gnd squares <5 / F B C M >5p A EDS spectrum conforming to laboraloiy holes or opaque areas identification cntena observed Chrysotile AMPHIBOLES Amphibole F Single Fiber Amosite B Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C Cluster (>3 Intersections) Anthophyllite Non Asbestos Tremolite M Matrix Non Identified Actinolite NSD No Structures Detected

CITY_21MC1OO_OO3O16971

NYC-WTC_000207876