NYC-WTC_000230519

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Voiume (liters'): 1936 LabGroun#; 9133 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 8 Grid Opening Size: 0.01124 I Client Sample #: 08 .Area E.xamined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ED: Accelerating Voltage: 100 KeV li # Grid Openings: 4 Analysis Date: 11/28/02

.Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EOS I (NonadP No F i B M >=05 p I Chrys ' Amphibole Nonasb Ambig/ND No Coord <5p E!err,ent3)

6

i Photo No. (from 1 in 5 asbestos containing samples) Gria acceptance: Struct = > 0.50 A 5:1 Aspect Ratio <50% undissoived filter, overlapped cr folded Totals y = Positive diffraction pattern properties ccnforming to <'0% particulate coverage >50% coverage ate iaborator/ identfication criteria absemed least 30 unfclded or ovehapped grid sduares <5% ‘ i F i B I C holes or opaque areas '(= IDS soectram conforming to Iaborator/ Chrysotile i ! idsntitication criteria obsetvea AMPHIBOLES Amphibole I . - = Single Fiber ,Amosite Crocidolite Ambiguous f i 3 = Stindte <3 fibers <1 fiber diameter aoart C = Cluster (>3 intersectionsi Anthophyllite I Non-Asbestos i Tremolite M = Matrix I Non-Identified | Actinolite USD = Mo Structures Detected

CONFIDENTIAL, CITY_21MC100_011771460 SUBJECT TO PROTECTIVE ORDER NO, 2, SEPT. 2008

NYC-WTC_000230519