NYC-WTC_000231713

NYC 9/11 Public Portal Document 0020 02/11/02 18:20 FAX 1212 588 0930

TEM Asbestos (air) Couiit Sheet Client Name: NYC BOE Volume (liters): 1824 Lab Group 6637 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: 0.04496 mm- GIMP BOX: Magnification: 20,000 GRID ID: /Z >7 Accelerating Voltage: 100 KeV # Grict Openings: 4 Analysis Date: 2/11/02

Analysis Performed By; A/^ roman PEYSaKIIOV

GO Structure Structure Type length lOofstMCture Nor N eos I (NoneOb | No F B C M >=05 y >=5p Chrys Amphibole Nonasb Ambig/NO No Coord Elernsnis) , z ■ i I Ci iC b

J

I StrucT = > 0.5u > S I Aspect Ratio Giia aKeciance: Positive diffraction pattern prsperties confoming to *«)% undiMoived filter, avertapped or foMea Totals ' ' lacaraiory ------- laeniiScaticd criteria obserred '10% periculaie coverage >50% covo.'age ate least 20 unfoMeo provertappea gnd squares ^5% F C M V- EDS spectrum conforming to /aMraiorY B >5p holes oropaaus areas ideniiiicailon criteria opsen'erf Chrj'sotile , amphiboles ' Amphibole E - Single Fiber , Amesite B - Sundle (<3 foers <1 fiber diameter aparl Crocidolite Ambiguous C: Cluster (>3 intersecibns) Anthophyllite Non-Asbestos M = Matrix I Tramolite i Actinolite I Non-Identified rtSD 1 No Structures Cetected I

CITy_21MC100_013073796

NYC-WTC_000231718