NYC-WTC_000196947

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOF. Volume (liters): 1884 Lab Group #: 6932 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 1 Gricl Opening Size: 0.01124

Client Sample #: 03 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV t/GridOpenings: 4 .Analysis Date: 3/4/02 --------------------------------------------- — Analysis Performed By: / y// ------------- . ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or A EDS (Nonadb No F B C M •=05p Chrys Amphibole Norasb Ambtg/ND No Coord <5u Elements)

____

L...

-j—1

! I rn

Struct - I) oil > 5:1 Aspect Ratio Grid acceptance

v= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <"0% paniculate coverage >50% coverage ate laboratorv identification criteria observed least 20 untoided or overlapped grid squares <5%i) j F ! B i C j M i >5o EDS spectrum conforming to laboratory boles or opaque areas L identification criteria obsenred Chrysotile ■ । i i ; 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 ■ Non-Ideiitified Actinolite NSD = No Structures Detected

CITY_21MC100_003044264

NYC-WTC_000196947