TEM Asbestos air sample results, NYC BOE, Nov 2001

NYC 9/11 Public Portal Document

TEM Asbestos unr) Count Sheet Clien; NYC BOE Volume (liters): 1928 LabCr 5970 Filter Type Filter /rea: MCE 385 mm" Lab Sa! Grid Opening Size: 0.01124

Clieni S Area Examiiied: 0.04496 mm" Magnification: GRID B 5 20,000 GRID i! Accelerating Voltage: 100 KeV # Grid Analysis i)ate: 11/25/01

Analysis Performed By: ROMAN Ph.VSAKHOX

GO 't'ucture Structure Type Length ID of Structure g or 9 EDS "'//V Iz-r (Nonadb No F B C I M Chrys j Amphiboie j Nonasb j Ambig/ND Elements) No Cm <5(J - . IZp2. >^22; -------------F

1 X-ASTF // ____ L I i 71

j I I j 1 I I ; 1 1

Struct = ' I Aspect Ratio Grid accepiance:

Positive dibrau .vr pattern properties conforming to <50% undissolved iilter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory ice 'ir non criteria observed least 20 unfolded or overlapoeo grid squares <5% F ! F B C M >5p EDS spec UI ■ onforming to laboratory holes or opaque areas identification c reserved Clirysotiie i AMPHIBOLES Amphibole i F = Single Fil" Amesite B = Bundle ■ ■ iiber diameter anan Crocidolite Ambiguous I C = Cluster iiions) Anthophylliie Non-Asbestos i Tremolite M = Matrix 1 Non-Identified i Actinolite I 1 NSD = NoS!i jriecied

CITY_21MC100_011107821

NYC-WTC_000185497