Cover page for TEM results and chain of custody, 110

NYC 9/11 Public Portal Document

I TEM Asbestos (air) Count Sheet

LI Client Name: Lab Group #: Airtek 6120 Volume (liters): 1300 Filter Type / Filter Area: MCE 385 mm' Grid Opening Size: 0.01124 Lab Sample #: 1 I Client Sample #: 01 Area Examined: Magnification: 20,000 0.06744 mm'

GRID BOX: -, Li

I GRID # Grid ID: Openings: 6 c6(-14- Accelerating Voltage: 100 KeV Analysis Date: 12/16/01

I Analysis Performed By: ROMAN PEYSAKHOV

f GO. Structure No Structure Type F B C M >=05 P Length >=5N ChryS ID of Structure Amphibole Nonasb Nor Ambig/ND EDS (Nonadb <5p Elements) No Coord r 2 c222. q' 'V

I

I I f 1 I Struct = > 0.5µ .> 5:1 Aspect Ratio Grid acceptance: 4= Positive diffraction pattern properties conforming to <50% <10% undissolved filter, overlapped or folded particulate coverage >50% coverage ate Totals laboratory identification criteria observed

I 4= EDS spectrum conforming to laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% holes or opaque areas

AMPHIBOLES Chrysotile Amphibole F B C M >5p

I F = Single Fiber 8 = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) Amosite Crocidollte Anthophyllite Tremolite Ambiguous Non-Asbestos M = Matrix Non-Identified

I NSD = No Structures Detected Actinolite

NYC-WTC 000098484