NYC-WTC_000212469

NYC 9/11 Public Portal Document

TEM Asbestosjair) Count Sheet ( lient Name: N YC BOE Volume (liters): 1936 Lab Group #: 7457 Filter Type / Filter Area: MCE 385 mnr Lab Sample #: 3 Grid Opening Size: 0.01124

( lient Sample 03 Area Examined: 0.04496 mm-

I (>RID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV ft Grid Openings: 4 Analysis Date; 4/18/02

Analysis Performed By: MARK PEYSAKHOV

GO I Structure Structure Type Length ID of Structure Nor v i EDS '.r.n—I (Nonadb 1 No F 5 C >=05 u i>=5iJ Chrys Amphibole Nonasb Ambig/ND । No Coord i <5p \ Elements)

J

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: -.4 Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals Inboratory identilication cnieria otiserved <10% particulate coverage >50% coverage ate least 20 unfolded or oveilapped grid squares <5% F B C M >5u ’i2 EDS spectrum conforming to laboratory holes or opaque areas ileiitification cnteria observed Chrysotile A.MPHIBOLES Amphibole f = Single Fiber Amosite E = Bundle i<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster 1>3 Intersections) Anthophyllite Non-Asbestos Tremolite fr = Matrix Non-Identified Actinolite fisc = No Structures Detectec

CITY_21MC100_0 02866625

NYC-WTC_000212469