NYC-WTC_000210506

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Airtek Volume (liters): 1300 Lab Group 6120 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124

Client Sample #: 05 Area Examined: 0.06744 mm-

GRID BOX: ( Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/16/01

Analysis Performed By; ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or EDS (Nonadb No F B C M >=05 |J >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

If K jl alH if /i

Struct = >0.5p > 5:1 Aspect Ratio Grid acceptance: V= Positive diffraction pattern properties confomiing to <50% undissolved filter, overlapped or folded Totals laboratory identification oiteha observed <10% particulate coverage >50% coverage ate

>/= EDS spectrum conforming to iaborator/ least 20 unfolded or overiapped grid squares <5% holes or opaque areas F B c M >5p

identification criteria 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 = Matrix Non-Identified Actinolite NSD = No Structures Delected

CITY_DEP_WORBY_CANNATA_SUBP_000021334

NYC-WTC_000210506