Cover page for TEM results and chain of custody, 110

NYC 9/11 Public Portal Document

I TEM Asbestos (air) Count Sheet Client Name: Airtek Volume (liters): 1300 I Lab Group #: 6120 Filter Type / Filter Area: Grid Opening Size: MCE 385 mm2 0.01124 Lab Sample #: 12

I Client Sample #: GRID BOX: GG y" 22 Area Examined: Magnification: 20,000 0.06744 mm=

GRID ID: Cr' L Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/16/01

Analysis Performed By: Qf ROMAN PEYSAKHOV

Structure Structure Type Length I0 of Structure Nor EDS GO. (Nonadb No F 8 C M '=05 Ii >=5p Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <SN

f,i

lI R r

I

Struct = > 0.5i > 5:1 Aspect Ratio Grid acceptance: undissolved filter, overlapped or folded Totals 1= Positive diffraction pattern properties conforming to <50% <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F B C M '5u J= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPH[BOLES Amphibole F = Single Fiber Amosite Ambiguous I B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) M = Matrix Crocidolite Anthophyllite Tremolite Non-Asbestos Non-Identified Actinolite

I NSD = No Structures Detected . ._.

NYC-WTC 000098495