NYC-WTC_000189664

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1848 Lab Group #: 7276 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 14 Grid Opening Size: 0,01124 Client Sample #: 17 Area Examined: 0.04496 mm^ GRIP BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grift Openings: 4 Analysis Date: 3/31/02

Analysis Performed By: __________________ romanWysakhov

GO. Structure Structure Type Length ID of Structure N or 7 EDS No (Nonadb F B C M >=05 pt >=5p Ctirys Amphibole Nonasb Ambig/ND „ / , No Coord Elements)

77^ II II

Struct = >0.5n >5:1 Aspect Ratio Grid acceptance: Positive diffracrion pattern properties conforming to '50% undissolved fiter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

•/= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B c M >5m identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 6 = 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_21MC100_003087614

NYC-WTC_000189664