NYC-WTC_000217964

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6716 Filter Type / Filter Area: MCE 3S5 mi- Lab Sample #: 12 Grid Opening Size: 0.01124 Client Sanaple #: 12 Area Examined: 0104496 mm- GRID BOX: Magnification: 20,000 GRID ID; ^^2 .4ccelerating Voltage: 100 KeV #Grid Openings: 4 Analysis Date: 2/1S/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v ] EDS No >-05 p Amphibole Nonasb Ambig/ND (Nonado F B C M Chrys Eiements) Coord <5p

6/ K Y I

!

ii I

Struct = > O.Sp > 5:1 Aspect Ratio Grid acceptance; Positive diffraction pattern properties conforming to <50% undissolved niter, overlapped or lolded Totals <10% particulate coverage >50% coverage ate laboratory identification critena observed least 20 unfolded or overlapped grid squares <5% F B I C I M j >=u ■v= EDS spectrum conforming lo laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matnx Actinolite Non-Identified : i NSD = No Structures Detected

CITY_21MC100_002878145

NYC-WTC_0002 17964