NYC-WTC_000202847

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3900 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 1 Grid Opening Size: 0.01124

Client Sample #: 1 Area Examined: 0.24728 mm-

GRID BOX: Magnification: 20,000 GRID ID: 7^7^ Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02 J Analysis Performed By: ROMAN PEYSAKHOV

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

// 5 PZ- Z?

zS -1 2^2^ ZY

■ PZ-

/<

// II. 17 A

ZESz’ TV’ / UZS //

................. I , I, Photo No. (from 1 in 5 asbestos containing samples) Grid acceptance: Struct = > 0,5p > 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals \ = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification critena observed least 20 unfolded or overlapped grid squares <5% C I M holes or opaque areas \= EDS spectrum conforming to laboratory Chrysotile ■ identification criteria observec AMPHIBOLES Amphibole j P = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous I C = Cluster (>3 Intersections! Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified j Actinolite NSO = No Structures Detected

CITY_21MC100_003069312

NYC-WTC_000202847