NYC-WTC_000229183

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1864 Lab Group 7968 Filter Tvne / 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 gw GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/5/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type length ID of structure Nor < eos No >=05iJ 'I ;>=5p (Nonadb F B C M Chrys Amphibola Nonasb Ambig/NO ■No' Coord Elements} <5U

Struct = > 0.5p ->5:1 Aspect Ratio Grid ecceptanoe: Prsilive tfiJraefion pattern properties contorming to <50% undissotved (liter, overiapped wtoWad Totals laboratory identilicatton criteria observed <10% particulatfi coverage >50% coverage ate least 20 urfoWed or overtapped gild squares <5% F B C M >5u V= EDS spectrum conforming to laboratory hates or opaque areas identfScatron orteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B =■ Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous i Anthophyllite Non-Asbestos C - Cluster {>3 (ntersectos) Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002902380

NYC-WTC_000229183