NYC-WTC_000201358

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7370 Filter Type / Filter Area: MCE 385 mnr Lab Sample #: 5 Grid Opening Size: 0.01124

Client Sample #: 05 Area Examined: 0.04496 mm-

GRID BOX: Magnification: .20,000. GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/10/02 '

Analysis Performed By: ' MARK PEYSAKHOV

GO. Structure ' Structure Type Length ■ ID of Structure N or 7 EDS (Nonadb No ' F B C M >=05 [J >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord Eiements)

' zgD- ArFTX —'C—'

.J Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance:

y = Positive diffracti'Cn pattern properties conforming to «50% jndissolved filter, overlapped or folded Tot^ laboratory identification criteria obsen/sd <10% particulaie coverage >5C% coverage ale

7= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% . holes or opaque areas F B c M >5p

identification criteria observed Chrysotile i AMPHIBOLES Amphibole F = Single Fiber Amesite B = Bundis (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous' C = Cluster (>3 Intersections) j Anthophyllite Non-Asbestos rerrolite M = Matrix ) Non-Identified Actinolite NSD = No Structures Detected I__________________

CITY_21MC100_011275668

NYC-WTC_000201362