NYC-WTC_000208341

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet I Client Name: KYC BOE Volune (liters): 1920 Lab Group #: 8759 Filter Type / Fi ter Area: MCE 385 mm^ Lab Sample #: 3 Grid Opening Size: 0.01124

Glient Sample 03 Area Examined: 0.04496 mm-

GJRJD BOX: Mag lification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 8/25/02

Analysis Performed By: romaSj peysakhov

Structure Structure Type Length ID of Sti JCture N or 'J EDS 7 (Nonadb j No F B C L >=05 u >=5)j Chrys ~Amphibole i Nonasb ; Ambig/ND No Coord <5u i Elements)

I !

Struct = > 0.5n 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overiapped or folded Tmals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M i >5u EDS spectrum confonning to laboratory holes or opaque areas identification criteria observed Chiys )tile AMPHIBOLES Amphibole F = Single Fiber Amosite 6 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbcstos M.= Matrix Tremolite Actinolite Non-Ident Tied NSD = No Structures Detected

CITY_21MC100_003021675

NYC-WTC_000208341