NYC-WTC_000196840

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 9210 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 7 Grid Opening Size: 0 01124 Client Sample #: 09 Area Examined: 0 04496 mm-

GRIP BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed Bv: MARK PEYSAKHOV

; GO Structure structure Type Length ID of Structure Nor y EDS No >=05 p (Nonadb F B C M >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5M Elements)

i rhoto NO (tram 1 n 3 asbestos containing samp es) Gnd acceptance Struct = > 0 5p >51 Aspect Ratio <50% undissolved filter, overlapped or folded Totals >/= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laooratory identification catena observed least 20 unfolded or overlapped gnd squares >5u I <5% holes or opaque areas F B C M y- EDS spectrum conforming to laboratory identification catena observed Chrysotile I AMPHIBOLES Amphibole = = Single Fiber Amosite 5 = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersecbons) Anthophyllite Tremolite Non-Asbestos M = Matrix Actinolite Noii-Identified NSC = .No Structures Detected

CITY_21MC100_003043177

NYC-WTC_000196840