TEM Asbestos air count sheet, NYC BOE, Apr 25 2002

NYC 9/11 Public Portal Document

l EM Asbestos (air) Count SI eet Client Name: NYC BOt: \3 ■ Ui!it' (liters): 2264 Lab Group #: 7539 Filter Type r'iiter Area; MCE 385 mm^ Lab Sample #: 1 1 Grid I 1 -!Hi2 Size: 0.01124 Client Sample #: 14 AI C i xarmnecE 0.04496 mm^

GRID BOX: ALiiiiicatioii: 20,000 GRID ID: .Aceelc!';, it > Voltage: too KeV # Grid Openings: 4 A a yyisDate: 4/25/02

Analysis Perl rmed By: MARK PEY.SAKHOV

GO. Structure Struciure Type Length ID v.ucrure N u rv EDS (Nonadb No F i e" C M >=05 p Chrys Ampnv.t Honasb Ambig/ND No Coord Elements) ! —I--------------- <5p ZZZ5HZ 1— 1

I ■j----- r )---- 1 1

Struct = > 0.5|i >5:1 Aspec! Ratio Grid acceptance:

'I- Positive diffraction pattern properties ccnfoi ,, (P <50% undissolved‘liter, cv- gpped or folded Totals <10% particulate coverage :■ 50% coverage ate laboratory identification criteria observed least 20 unfolded or overlaored grid squares <5% F B C M >5m '/= EDS spectrum conforming to laborator;/ holes or opaque areas identification criteria observed ( ...rile AMPHIBOLES i/ole F = Single Fiber Amosite :IIS B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster (>3 Intersections! Anthophyllite Tremolite M = Matrix Actinolite NSD = No Structures Detected

CITY_21MC100_003102069

NYC-WTC_000183074