NYC-WTC_000202847

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 #: 35 Grid Opening Size: 0.01124

Client Sample #: 35 Area Examined: 0.24728 mm^

GRID BOX: ZvyY Ma2nification: 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 N EDS (Nonadb No F B C M >=05 u Chrys Amphibole Nonasb Ambig/ND No) Coord <5p Elements)

Z- / 7~Z

Z3 2

7 ^-9 ESS ft Air

ft ^'.7 istzTL

Z4 €3 r r ft 22.^ Tre? i 233 <7/

PTicty^IcjIrofTrrTiTlsUesiorcoruainlng ’sar^ Grid acceptance: Struct = > 0.5u > 5:1 Aspect Ratio • <50% undissolved filter, overlapped or foldea Totals V = Positive diffraction partem properties conforming to <10% particulate coverage >50% coverage ate laboratory laentificatior criteria observeo least 20 unfolded or overlapped grid squares <5% i F ' B ' C I M 1 >5p holes or opaque areas \' = EDS spectrum conforming to laboratory Chrysotile f irteniificaiion criteria observed AMPHIBOLES Amphibole i F = Single Fiber Amosite 5 = EunOle i<3 fibers <1 fiber diameter acan Crocidolite Ambiguous ! Z = Cluster (>3 intersections) Anthophyllite Non-Asbestos I Tremolite '/I = Matrix Actinolite Non-ldentified I i NSD = No Structures Detected I_____________ i.. -1

CITY_21MC100_003069346

NYC-WTC_000202881