NYC-WTC_000229167

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1888

Lab Group #: 7938 Filter Type / Filter Area: MCE 385 mm*' Lab Sample #: 13 Grid Opening She; 0.01124 Ciient Sample #; 13 Area Examined: Q.G4496 mm’ GRIP BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: lOO KeV # Grid Openings; 4 Analysis Date; 6/2/02

Analysis Performed By: MARK PEYSAKHOV

GO. structure Structure Type Length ID of structure N or 4 EDS (Nonadb No F B C M >4)5 M >=5p Cbrys Amphibole Nonasb Ambij/ND No Coord <5p Elements)

g -7 c-r^7

Struct * > O.Sji > 5;1 Aspect Ratio Grid acceptance; Positive ditfracfioh pattern properfies cPritbrnilng tc laboratory identification criteria observed <1011 particuate coverags >50% ooverage ate least 20 unfolded or overiapped grid squares <5% F B C >Sp EDS spectrum ctmlbinring to labcratay holes or opaque areas identiftcaSoii criteria observed Chrysotile AMPHIBOLES Amphibole F - Single Fiber Amosite B » Bundle (<3 fibers <1 Srer diameter apart Crocidolite Ambiguous { Anttiophylllte Non-Asbestos C - Cluster (>3 Intersections) ( Tf8fT>0lltB M-Matw Actinolite Non-Idcntificd NSD = No Structures Detected

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NYC-WTC_000229167