NYC-WTC_000218422

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume niters): 1920 Lab Group #: 7247 Filter Tvpc / Filter Area: MCE 3S5 mm- Lab Sample #: 10 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0.04496 mm-

GRID BOX: Maenificatiom 20.000 GRID ID: <2. Accelerating Voltage: 100 KeV # Grid Openings: 4 ■Analysis Date: 3/28/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length IC of Structure N or v EDS I No (Nonadb F B C M >=05 u >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements) j

Srruct = > 0.5p .> 5; I Aspect Ratio Grid acceptance; 4 = Positive diffraction pattern properties confonning to <50% undissolved filter, overtapped or folded Totals laboratOfY identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped gnd squares <5% / 7= EOS spectrum conforming to laboratory holes or opaque areas ; p p r ) Identification criteria observed Chrysotile | AMPHIBOLES Amphibole i F - Single Fiber Amopite Crocidolite ■Ambiguous I I 8 = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) Anthophyllite K on-Asbestos 1 ! Tremolite M = Matnx Actinolite Non-Identified NSO = No Structures Detected

CITY_21MC100_002878404

NYC-WTC_000218422