NYC-WTC_000202847

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3600 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 33 Grid Opening Size: 0.01124

Client Sample #: 33 Area Examined: 0.24728 mm^

GRID BOX: Magnification: 20,000 GRIPED: Accelerating Voltage: too KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKBOV

GO. Structure Structure Type Length ID of Structure Norv EDS No >=05 M :>=5|' (Nonadb F B C M Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <5m <7"/ ZZE22 1 Hi 1/

LP II

3'^ zx

! 1

I . ....................... , „___________ ,i Photo No. (from 1 in 5 asoestos containing samples) Grid acceptance: Struct = > 0,5p > 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals \ = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laooratory identification criteria ooserved least 20 unfolded or overlapped grid squares <5% holes or opaque areas j F I B C i mT^ EDS spectrum conforming to laboratory Chrysotile i identification criteria observed ■AMPHIBOLES Amphibole F = Single Fiber Amosite e = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous I C = Cluster ;>3 Intersections! Anthophyllite Non-.Asbestos i I i Tremolite y = Matrix 1 Non-ldentified i Actinolite fiSC = No Structures Detected

CITY_21MC100_003069344

NYC-WTC_000202879