Cover page for TEM results and chain of custody, 110

NYC 9/11 Public Portal Document

I TEM Asbestos. (air) Count Sheet Client Name: I Lab Group #: EM & CA 6070 Volume (liters): Filter Type / Filter Area: 1300 MCE 385 mm-' Lab Sample #: 17 Grid Opening Size: 0.01124

I Client Sample #: 017 Area Examined: Magnification: 0.06744 mm=

GRID BOX: 20,000

I GRID ID: / # Grid Openings: 6 Accelerating Voltage: Analysis Date: 100 KeV 12/9/01

I Analysis Performed By: ______________________________________ ROMAN PEYSAKHOV

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

2 10

v

r1 g IA I I 1 Ii1T11_: -___ IIIr I ___

I n

fl Struct = > O.5p > 5:1 Aspect Ratio Grid acceptance: <50% undissolved filter, overlapped or folded 4= Positive diffraction pattern properties conforming to <1 0% particulate coverage >50% coverage ate Totals laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F B CM >5p I 4= EDS spectrum conforming to laboratory identification criteria observed holes or opaque areas

AMPHIBOLES Chrysotile Amphibole F = Single Fiber Amosite

I B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) Crocidolite Anthophyllite Tremolite Ambiguous Non-Asbestos M =Matrix Actinollte Non-Identified

I NSD = No Structures Detected ___—

NYC-WTC 000098440