NYC-WTC_000202890

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: 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 F 6 C M >=05 u Chrys Amphibole Nonasb Ambig/ND z ZJ (/I No 1 Coord <5m Elements)

^3 // 77

a /z A

“A iAi Ty z/ J /Z, g, 2-

// zc zz

'll! crS' SSZSz /z / •z-f /'

Photo No. (from 1 in 5 asbestos containing samples) 77 Gnd acceptance: Struct = > O.Su .> 5:1 Aspect Ratio .. , , j , . <50% undissolved filter, overlapped or folded Totals ^/= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laborator/ identification oriteha observed least 20 unfolded or overlapped grid squares <5% I F i B i C M >5u holes or opaque areas '/= EDS spectrum conforming to laboratory r Chrysotile identification cnteria obsenzed AMPHIBOLES h Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous I C = Cluster (>3 Intersections) Anthophyllite M = Matrix T remolite Non-Asbestos i NSD = No Structures Detected Actinolite I Yon-Identified i 1

CITY_21MC100_003069434

NYC-WTC_000202890