NYC-WTC_000200529

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters'): 1920 Lab Group #: 8123 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 02 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: # Grid Openings: 4 zW Accelerating Voltage: Analysis Date: 100 KeV 6/15/02

Analysis Performed By: ROMAN PEYSAKHOV ,

GO. Structure Structure Type Length ID of Structure N or \ EDS ; (Nonadb i ■ No - F B C >=05 p I :>-5l Chrys Amphibole Nonasb Ambig/ND -■ ' Elements) ' i ;2 • No Coord I <5u

-3—

-; ir

Struct = > 0.5(u > 5:1 Aspect Ratio ' Grid acceptance: Positive diffraction pattern properties conforming to undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chry'sotile AMPHIBOLES j Amphibole ■ F = Single Fiber Amosite J B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite ! Ambiguous C = Cluster (>3 Intersections) . Anthophyllite , I Non-Asbestos Tremolite i M = Matrix Actinolite I Non-Identified NSD = No Structures Detected

CITY_21MC100_011274962

NYC-WTC_000200530