NYC-WTC_000214864

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Street Client Name: NYC BOE Vi'Hime (liti 2 1928 Lab Group #: 8225 Filter Type / Filter Ar 2 MCE 385 mm^ Lab Sample #: 13 Grid ( . pening SI : 0.01124

Client Sample #: 13 Area Examin ■■ 2 0.04496

GRID BOX: L 'Unificat: 1: 20,000 GRIDID: Accelcr.i ing Volt; 100 KeV # Grid Openings; 4 A n lysis D 6/23/02

Analysis Performed By: _________ p^jL___ ROMAN PEY^KHOV

GO. Structure Structure Type Length IC fSInjcture .TN EDS (No'nadb. No F B C M >=05 p >=5p Chrys Amphit Nona Ambig/ND No Coord <5m Elements)

ZZ^ * 2. X____

Struct = >0.5p > 5:1 Aspect Ratio Grid aaeptance: V= Positive diffraction pattern properties conforming to <50% undssolved filter, overlapped or folded laboratoiy identification critena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% B C M >5m /= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed (, sotile AMPHIBOLES libole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Al ;uous C = Cluster (>3 Intersections) Anthophyllite Noii- bestos Tremolite M = Matrix Non-I itified NSD = No Structures Detected Actinolite L

CITY_21MC100_002871040

NYC-WTC_000214864