NYC-WTC_000229191

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1864 Lab Group #: 7978 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 07 Area Examined: 0.04496 mm" GRID BOX: Magniflcatjon; 20/as GRIP IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Pate: 6/5/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS No Nonasb (Nonadb F B C M >=05 M >=5p Chrys Amphibole AfnCig/NO No Coord <5p Elements)

i_J_________________ 111 Struct = > 0.5u .>5:1 Aspect Ratio Grid acceptance: •J= Positive diBraction pattern properties conforming to <50% itndissolvad liter, overlapped or Mded Totals labotafoty identification erteria observed <10% pamojlate coverage >50% coverage ate te^ 20 unfolded or overlapped grid squares <5% F B C M >5p EDS spectrum oonfomting to laboratory holes or opaque areas idenfification erteria observed Chrysotile AMPHIBOLES Amphibole Fs Single Rber Amosite B = Bundle (<3 fibers <1 liber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSC - No Structures Detected

CITY_2IMCl00_000491677 NYC-WTC_000229191