NYC-WTC_000201882

NYC 9/11 Public Portal Document

TEM Asbestos, (air) Count Sheet Ciieiit Name: NYC BOE Volume (litei-s): 1840 ' i Lab Grou]} #: 6574 Filter Tvne / Filter Area: MCE 385 mmT Lab Sample #: 13 Grid Opening Size: 0.01124 .

Client Sample #: 13 Area Examined: ' 0.04496 mm-

GRID BOX: Maonification: 20.000 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2,/6/02

Analysis Performed By: MARK PEY'SAKHOV .

GO, Structure Struc:ure Type Length ID of structure Nor 4 'EDS No (Nonadb .F B C M •=05p ~ . >=5tJ Chrys Amphibole Nonasb Ambig/ND No - Coord 1 <5p Elements)

C'-

Struct = > C.S.p > 5:1 Aspect.Ratio Grid acceptance: Positive diffraction pattern properties conforming to ^^0% undissolved filter, overlapped orfolded Totals laboratory identification criteria observed 10% particulate coverage >5C% coverage'ate least 20 unfolded or overlapped grid squares <5% F B C M i >5p #= EDE spectrum conforming to laboratory holes or opaque areas " identification criteria observed . Chrysotile AMPHIBOLES Amohibole F = Single Fiber - Amosite . B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite . Ambiguous C = Cluster [>3 Intersections) Anthophyllite I N.on-Asbestos Tremolite M - Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003269392

NYC-WTC_000201882