NYC-WTC_000192929

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet I Ciieiii Name: NS’C BOE i 2’oiume (liters): !S24 Lab Group #: 6/79 Filter Type / Filter Area: MCE Lab Sample #: Grid Opeiiin«4 Size: (j_QU ■’4

Client Sample #: F-5 Area Examined: U.04496 mm-

GRID BOX: Maojiification: 20.000 GRID ID: ■Accelerating Voltage: 100 KeV I i s Grid Opeaiiigs: 4 .Analysis Date: ■/02

Analysis Performed By: rv ROMAN PEYSAKHOV

! Structure Structure Type Length ID of Structure Nor v i EDS ---------------- 1 No >=05 p .Nonacb No Coord ! F B C M Chrys Amphibols Nonasb Ambig/ND <5u Elemenis)

G s a2 -

•-J

u I 1 t

-------- -------- U----- ____________ I __ i Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:

v= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification critena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B >5p '3= EDS spectrum coiifoiming to laboratory C M holes or opaque areas oenlification criteria observed Chrvsotile AMPHIBOLES Amphibole r = Single riber Amosite S = Bundie i<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster i>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite ’ Non-Identified NSD = No Structures Detected

CITY_21MC100_003093496

NYC-WTC_000192929