NYC-WTC_000229242

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1848 Lab Group #: 8038 Filter Type / Filter Area: MCE 385 mm’ Lab Sample#: 5 Grid Opening Size: 0 01124 Client Sample #: 07 __ Area Examined: 0,04496 mm* GRID BOX: Magnification: 20,000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/10/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure StTJcture Type Length ID of Structure Nor V EDS (Nonadb No , F B C M >=05 p :>=5)J Chrys Amphitole Nonasb Ambig/ND Elements) <5M

•J3I I

Struct = > 0-5p > 5;! Aspect Ratio Grid acceptance: '/=Positive diffraction pattern properties (informing to <50% undissolved filter, overtapped or folded Totals latjoralory identification criteria observed <10% particulate coverage >50% coverage ate least 20 untoWad or overtapped grid squares <5% F B C M >6m ^=£DS spectrum confoiming to laboratory holes or opaque areas tdentificairon criteria observed Chiysotilc AMPHIBOLES Amphibole F = Single Abe' Amosite B - Bundfe (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Irrtersecfions) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-identified NSO = NO Structures Detected

CITY_21MC100_002902404

NYC-WTC_000229242