NYC-WTC_000228597

NYC 9/11 Public Portal Document

TEMAsbestosJairlCountSh^ Client Name: NYC BOE Volume (liters): 1840 Lab Group 7508 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: I Grid Opening Size: 0.01124

Client Sample #: 09 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID IP: Accelerating Voltage: 100 KeV Grid Openings: 4 Analysis Date: 4/23'02

Analysis Performed By: l\/ ' _____________ ROMAN PEYSAKHOV

GO. Structure Structure Type Length 10 of Structure N or 'J EDS (Nonadb No F B C M TT05m i =5(J Chrys Amphibole Nonasb AmOig/ND No Coord Elements)

rz. Si <5p

l)

-U—

Struct = > 0.5p > 5:1 Aspect Ratio Gnd acceptance:

y= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% I F B I C i M ' v = EDS spectnjm conforming to laboratory holes or opaque areas _—i-------- j-------- , identification criteria observed Chrysotile i AMPHIBOLY Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Croadolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite i—I—r M = Matrix Actinolite Non-ldentified I i ! NSD No Structures Detected

CITY_21MC100_002901104

NYC-WTC_000228597