NYC-WTC_000228383

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client \iiiiiv: NV< ■ Bi JE \ olume (liters): 1840 Lab Gi nuj) fi: WTa Filter Tvpe Filter .Area: MCE 385 mm- Lali Siiinplc S: Grid Opening Size: 0.01124

Client Saiiiplu tf: 7 Area Examined: 0,04496 mm= GRIOBOX. Maanif'ication: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid (ipvnings: 4 Analysis Date: 1/27/02

Analysis Performed By: roman peysakhov

GC. Structure Structure T/pe Length ID cf Structure N or EDS ' No (Nonadb F ; B C M,: >=05 p >=5tJ Chrys Amphibole 1 Nonasb Amoig/ND ; Nu (T-un: <5p Elements)

a t s

.. .J. - -1- H

Strut! = ii.Sii > 5:1 Aspect Ratio Grid acceptance: •7= Positive diffraction pattern properties conforming to <50% undissolved tiller, overlapped or folded Totals laboraiory maniification criteria observed <10% particulate coverage >50% coverage ale least 20 unfolded or overtapped grid squares <5% F B C M >5y EOS SDectrum conlormiiig to laboratory holes or opaoue areas idenlilication cmena observed Cliiysoble AMPHIBOLES Amphibole F = Single - !>• Amosite B = Bundle hners <1 liber diameier apart Crocidolite Ambiguous C = Cluster -Gnterseciions) Anthophyllite Non-Asbestos Tremolite M = Matrix i Non-ldentified Actinolite NSC - NoL'r ires Deiected

CITY_21MC100_002900135

NYC-WTC_000228383