NYC-WTC_000207884

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name NYC BOE Volume filters) 1920 Lab Group # 8730 Filter Type / Filter Area MCE 385 mm^ Lab Sample # 13 Grid Opening Size 0 01124 Client Sample # 13 Area Examined 0 04496 mm^ CRIP BOX Magnification 20 000 GRID ID Accelerating Voltage 100 KeV # Grid Openings 4 Analysis Date 8/22/02

Analysis Pertormed By ROMAN PEYSAKHOV

Structure Structure Type Length ID of Structure N or v EDS No (Nonadb F B C M ■=5|J Chrys Amphibole Nonasb Ambig/ND No Coord <5U Elements)

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Struct = > 0 5p > 5 1 Aspect Ratio Gnd acceptance x/ Positive diffraction pattern properties conforming to *^0 / undissofved filter overlapped or folded Totals laboratory identification critena observed 10 / particulate coverage >50 / coverage ate least 20 unfolded or overlapped grid squares <5 / F B C M >5u V EDS spectrum confomiing to laboratory holes or opaque areas identification critena obsen/ed Chrysotile AMPHIBOLES Amphibole F Single Fiber Amosite B Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C Cfuster (>3 Intersections) I Anthophyllite Non Asbestos T remolite M Matnx Non Identified Actinolite NSD No Structures Detected

CITY_21MC100_003016981

NYC-WTC_000207884