NYC-WTC_000218058

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: N^’C BOE Volume (liters): 1952 Lab Group #: 6840 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01124

Client Sample #; 06 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 2/27/02

Analysis Performed By: MARK PEYSAKHOV

GO, Structure Structure Type Length j ID of Structure N or v EDS No “iNorradD " ■ F B C M >=05 p >=5p j Chrys Amphitxjle MonasD I Ampig/ND No Coord <5|j Elements i '

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: Fiqsltive diffraction pattern properties conforming to <50% undissoived filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overtapped grid squares <5% pFTB >/= EDS spectrum conforming to laboratory holes or opaque areas ■■dentification criteria observed Chrysotile j AMPHIBOLES Amphibole i F = Single Fiber Amosite B = Bundle i <3 fibers <1 fiber diameter apart Crocidolite Ambiguous I C = Cluster (>3 Intersections) Anthophyllite . Non-Asbestos i Tremolite M = Matrix Actinolite Non-ldentified i ___ _ . I NSO = No Structures Delected

CITY_21MC100_000465809 NYC-WTC_000218058