NYC-WTC_000199442

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOt Volume (liters): 1920 Lah Group #: 8760 Filter Type / Filter Area: MCE 385 mm- I.ab Sample #: 4 OiTitLGpeiiiiigJSizC 0,01124

Client Sample #: AreaE^nnined: 0.04496 mm-

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

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure Nor V EDS (Nonadb ' No F B C M >=05 p >=5p Ch'ys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

“YT”

-7^—

I I I I

I Z7

Struct = > u.3p > 5-1 Aspect Ratio Gnc acceptance 7= Positive diffraction pattern properties confcrming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate aPoraiory identification criteria observed least 20 unfolded or overlapped grid squares <5% B C M >5u 7= EDS spectrum conforming to laboratory holes or opaque areas ______ p identification criteria observed Chrysotile AMPHIBOLES Amphibole i F = Single Fibe' Amosite B = Bundle (<3 fibers <1 fiber diameter apart I Crocidolite Ambiguous j C = Cluster (>3 Intersections) [ Anthophyllite I Non-Asbestos T remolite M = Matrix Non-Identified । Actinolite NSb = No Structures Detected

CITY_21MC100_003033977

NYC-WTC_000199442