NYC-WTC_000222598

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: . NYC BOE Voitinic (liters): 1824 Lab Group #: 7539 Filtei Type / Filter Area: MCE 385 mm^ Lab Sample #: 13 Grid ()peiiiiig Size: 0.01124

Client Sample #: 16 Aren F..\ ami tied: 0.04496 mm^

GRID BOX: .M.ig!iitkatioii: 20,000 GRID ID: Accelci a?ing Voltage: too KeV # Grid Openings: 4 .AtialvsisDate: 4/25/02

Analysis Pqi formed By: MARK PEYSAKHOV

GO. Structure Struc:ure Type. Length ID 1 ■’ Si'iiCiCe Nor y EDS No ■TToSp ; =5p (Nonadb F E C M Chrys .Amphibo. i lonasb j Ambig/ND No i Coord <5m Elements)

! . ! 4. J I ; ” I

Struct = > 0.5p > 5:1 Aspect 2jtn Grid acceptance: •/= Positive diffraction pattern properties ct nf'-' ning to <50% undissolved filter, ove; lapped or folded Totals laboratory identification atlerta observed <10% particulate coverage :-50% coverage ate least 20 unfolded or overlapped grid squares <5% i F B C M >5m 'J-EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed tile : AMPHIBOLES p.: ; i'll F = Single Fiber Amosite ji'CU'.nis I B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster {>3 Intersections) Anthophyllite N Tremolite M = Matrix .Mil’-’ Actinolite 'll NSD = No Structures Detected

CITY_21MC100_002918231

NYC-WTC_000222598