NYC-WTC_000229334

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volnme flitersl: 1808 Lab Group #; 8178 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #; 14 Grid Opening Size: 0.01124 Client Sample #; Area Examined: 0.04496 mm’ GRID BOX: Magnification; 20,000 GRID ID: Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 6/19/02

Analysis Performed By: ROMAN PEYSAKHOV

: GO. Structure Structure Type Length ■DotStructure Nor V EDS No {Nonadb F B C M >=05 u >=5p Chrys AmphibofB Nonasb ■ No ; Coord <5m Elements}

2

Struct = > 0.5)1 > 5:1 Aspect Ratio Grid aoBeDtanoK -7= Positive diffraction patterri properties conforming to <50% undiuoteed Stter, overlapped or folded Totals laboratory identKicarton erfferia observed <10% paniculate coverage >50% coverage ate least 20 unfolded or overtapped grid srpiaies <5% F B C M >5p EOS spectrum conforming to labotatoiy holes or opaque areas idenlificaton critetia observed Chrysotile rAMPHtBOLES Amphibole P = Single Fiber 5 Amosite j Crocidolite .Ambiguous e = Bundle (<3 Riera <1 fflm diameter apart C = Cluster {>3 tnteraeetons) ■ Anthophyllite I Non-Asbestos Tremolite ; M = Matrix AcUnotite Non-ldeotitied NSD- No Structures Detected

CITY_2IMCl00_000491976 NYC-WTC_000229334