NYC-WTC_000210559

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Airtek Volume (liters): 1490 Lab Group #•. 6152 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 7 Grid Opening Size: 0 01124

Client Sample #: 010 Area Examined: 0.0562 mm-

GRID BOX: Magnification: 20,000 GRIPED: Accelerating Voltage: 100 KeV # Grid Openings: 5 Analysis Date: 12/20/01

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type | Length ID of Structure N or v EDS ! (Nonadb j No F B C ’=05 p Chrys Amphibole Nonasb Ambio/ND No Coord Elements) ! <5p

C-

Struct = > 0.5p. .>5:1 Aspect Ratio Grid acceptance: a/= Positive diffraction pattern properties conforming to <50% undissolved fitter, overiapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M >5p EDS spectrum conforming to laboratory 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 = Mamx Non-Identified Actinolite NSO = No Structures Detected

CITY_DEP_WORBY_CANNATA_SUBP_000021396

NYC-WTC_0002 10559