NYC-WTC_000228327

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet I Client Name: yjvr rqf Volume (liters): 1952 Lab Group #: 6363 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 10 Grid Opening Size: 0.01124

Client Sample #: 10 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 27^ 20,000 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 1/18/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor v EDS (Nonadb No F B C M >=Q5 p :>=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

//r 7 -JL -X-

Struct • > 0.5n > 5:1 Aspect Ratio Grid acceptance,' '/» Positive diffraction pattern properties conforming tt <50% undissph/ed filter, overlapped or foWed Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5y EDS spectrum conforming to laboratory holes or opaque areas identification criterie observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C - Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Nonidentified NSD = No Structures Detected

CITY_21MC100_002899968

NYC-WTC_000228327