NYC-WTC_000203512

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 9204 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 11 Grid Opening Size: 0.01124

Client Sample #: II Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20.000 GRID IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure » or y EDS (Nonadb No F B C M >=05 M >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord <5m Elements)

/A _EZ

Photo No (from 1 .n o asbestos containing samples) Gnd acceptance Struct = > 0 bp >51 Aspect Ratio <50% undissolved filter, overlapped or folded Totals Positive diffraction oattem properties conforming to <10% particulate coverage >50% coverage ate laooratoiy identification entena observed least 20 unfolded or overlapped grid squares >5p F B C <5% holes or opaque areas V= EDS spectrum conforming to laboratory Chrysotile identification critena observed I AMPHIBOLES I Amphibole r = Single Fiber Amosite 3 = 3unale (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous I Anthophyllite C = Cluster (>3 Intersections) j Tremolite Non-Asbestos M = Ivtatrix ' Actinolite Non-Idennfied NSD = No Structures Ceiecteo

CITY_21MC100_003058356

NYC-WTC_000203512