NYC-WTC_000229383

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet ClientName; NYC BOE Volume (liters): 1800 Lab Group #; 8267 Filter Type/Filter Area: MCE 385 mm" Lab Sample #: 14 Grid Opening Size: 0.01124 Client Sample #; 16 Area Examined: 0.04496 nun^ GRID BOX: Magnificatton: 20,000 ^9^ GRID BP; Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 6/24/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length IO of Structure N or\ eos (Nonadb No F B C M >=05 M >=5p Chrys Amphibole Nonasb Airtjig/ND No Coord J <Sp Elements)

Struct *>0-5p >5:1 Aspect Ratio Grid acceptance; V= Positive diflraction pattern properties conforming to <50% undissotved Rfter, overlapped or folded Totals <10% paibajlata coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overiapped grid squares <5% F B C M >5u /= EOS Specbum corrforrniftg to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibeis <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 tnteraections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected J

CITY_2IMCl00_000492072 NYC-WTC_000229383