NYC-WTC_000211757

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count: a Client Name: NYC BOE . ? (liters): 1814.5 Lab Group #: 8243 Filter Tv|i I r Area; MCE 385 mm^ Lab Sample #: 14 Grill Irig Size: 0.01124 Client Sample #: 14 A; Y I mined: 0.04496

GRID BOX: - Ication: 20,000 GRIDID; Accelfi- J Voltage: 100 KeV # Grid Openings: 4 is Date: 6/23/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ' ■'ure Norv EDS No (Nonadb F B C M >=05 M >=5|j Chrys Amp: ionasb Ambig/ND No Coord <5m Elements)

Struct = >0.5p >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped dr folded Totals ----- laboratory identification <10%observed criteria particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m 7= EDS spectrum conforming to laboratory holes or opaque areas — ' identification criteria observed :■ lie AMPHIBOLES I le F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite us C = Cluster (>3 Intersections) Antbophyilite os Tremolite M = Matrix led Actinolite NSD = No Structures Detected

CITY_21MC100_002865159

NYC-WTC_000211757