NYC-WTC_000228373

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: N YC BOE Volume (liters): 1938 Lab Grout) #: 6455 Filter Type / Filter Area: MCE 385 mm* Lab Sample#: Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496 rnm*

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Opening?: 4 Analysis Date: 1/26/02

Analysis-Performed By: MARK PEYSAKHOV

GO i Structure Structure Type, ! Length ID ol Structure N or Y EDS No (Nonadb F B C M >=05 M >=5p Chrys Amphibole Nonasb AraoigyND No .fiinrd <5ij Elements)

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Struct “ > II Sp > 5:1 Aspect Ratio Gna acceptance: Positive diffraction pattern properties conforming lo undissolved filler, overap^ or folded Totals - identification criteria observed laboretory <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5U 4= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Cliivsonle AMPHIBOLES Ampin bole F = Single Finer Amosite 8 = Bundle' <3 fibers <1 fiber diameter apart Crocidolite Ambiuuous C = Cluster !>3 InteisecBons) Anthophyllite Non-Ahbestos T remolite M’Matnx Actinolite Non-Ideiitified NSD = No Structures Detected

CITY_21MC100_002900087

NYC-WTC_000228373