NYC-WTC_000219286

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE \'(>lu.ne (liters): 1808 Lab Group th 7538 Filter Type / Citer Area: MCE 385 mm’ Lab Sample #: 10 Grid Oli iiiiig Size: 0.01124 Client Sample #: 12 Are a examined: 0.04496 mm’ GIUD BOX: Ma iiitication: 20,000 GRID ID: Accelei aiii.g Voltage: 100 KeV #Gricl Openings: 4 Analysis Date: 4/25/02

Analysis Performed By: .MARK PEYSAKHOV

GO. Structure Structure Type Length ID of .Y-.jciure Nor v EDS No (Nonadb F B M >=35 M I >=51J Chrys Amphii. ■ Nonasb Ambig/ND No Coord <5fj Elements)

o I ;

: 1

Struct = > O.5p >5:1 .Aspect Ratio Gria acceptance:

Positive diffraction pattern properties conforming to cbO’i'g tintJissolved filter, overlapped or folded Totals laboratory identification criteria observed <lO"i particulate coverage >50% coverage ate leas: 20 unfolded or overlapped grid squares <5% [ F B C M >5p •/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed ■ .utile '.MPI-IIBOLES ' .pole F = Single Fiber Amosite B = Bundle (<3 fibers < 1 fiber diameter apart Crocidolite mus C = Cluster (>3 Intersections, .Ainncphyllite Noi.-. r.YOS Tremolite M = Matrix Not! -Actinolite iteil I NSD = No Structures Detected

CITY_21MC100_002879628

NYC-WTC_0002 19286