NYC-WTC_000202890

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3600 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm-^ Lab Sample #: 30 Grid Opening Size: 0.01124 Client Sample #: 30 Area Examined: 0.24728 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v EDS No (Nonadb ' No F B C M >=5m Chrys Amphibole Nonasb Ambig/ND Elements) Coord <5m

A

ot /•Z ' /J'

ESI

z«P d. I

Photo No. (from 1 in 5 asbestos containing samples) " und acceptance: Struct = > O.Sp > 5:1 Aspect Ratio , ,, . <60% undissolved filter, overlapped or folded Totals v'= Positive diffraction partem properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped gnd squares <5% I F i B C I .M j >3p holes or opaque areas 9=EDS spectrum conforming to laboratory Chrysotile identification criteria observed AMPHIBOLES .Amphibole F = Single Fiber Amosite B = Bundle (<3 tlbers <1 Sber diameter apart Crocidolite Ambiguous C = Cluster j>3 Intersections) Anthophyllite Non-.Asbestos Tremolite M = Matnx Non-Identified Actinolite NSC = No Structures Detected

CITY_21MC1OO_OO3O69463

NYC-WTC_000202919