NYC-WTC_000229380

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Cliept Name: NYC BOE Volume niters): 1808 Lab Group#: 8267 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 7 Grid Opening Size: 0.01124 Client Sample #: 09 Area Examined: 0.04496 mm^

GRID BOX: Magnificatiog; 20,000 GRID ID: Q Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/24/02

Analysis Performed By: kJI ROMAN PEYSAKHOV

GO. Structure Structure Type Length iDofStructure N or 'Z eos No >=05p ' :>=5m Nonasb (Nonadb F B C M Chrys Amphibole AmbigfftD No Coord <Sm Slements)

zt z Y *1

Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identtftcafon criteria observed <10% paniculate awerage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M EDS spectrum conforming to leboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibote F = Single Fiber Amosite 8 = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C-Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix NSD = No Structures Deteded Actinolite Non-Identified z CITY_2lMC100_000492065 NYC-WTC_000229380