NYC-WTC_000218008

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: ' 6775 Filter Type / Filter Area: MCE ? >5 mn' Lab Sample !2 Grid Opening Size: 0 01124

Client Sample #: EO-14 AreaExatniried: 0.0447e, j-nm--

GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: .100 KeV # Grid Openings: 4 Analysis Date: 2 22'02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length iD of Structure N or V I EDS :■ —1 I Non 80 D No F 3 C M >=05 p >=5(j Chrys Amphibole Nonasb Amoig/ND 1 No Coord <5p I Elements)

Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to undissolved filter, overiapped or folded Totals laboratory identification crttena observed ' 10% particulate coverage >50% coverage ate

'/= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% I F j B i C i M j holes or opaque areas Identification cntena observed Clu7sotile i AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle [<3 fibers <1 fiber diameier apart Crocidolite Ambiguous. C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified I NSD = No Structures Detected

CITY_21MC100_002878225

NYC-WTC_0002 18008