NYC-WTC_000208212

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1936 CabCroiin 8837 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: Grid Opening Size: 0.01124

Client Sample #: 03 Area Examined: 0.04496 mm"

GRID BOX: q / M Magnification: 20.000 GRID ID: AcceleratingJColtagi^ 100 KeV ■ # Grid Openings: 4 Analysis Date: 9/15/02

Analysis Perft rmed By: ROMAN PEYSAKHOV

GO. Structure Structuie Type Length ID of Structure N or 9 EDS j (Nonadb j No F B i C M >=05 u : ■=5p Chrys Amphibole Nonasb Ambici/ND No Coord <5m Elements) j /' I

tf V HG Z( ------------

4

Struct = > 0.5a > 5:1 Aspect Ratio Grid acceptance: G Positive diffraction oattern properties conformi ig to <50% undissolved niter, overlapped or folded Totals _______ __________ <10% particulate coverage >50% coverage ate ' laborator/ identification criteria observeo least 20 unfolded or overlapped grid squares <5% 'j= EDS spectrum conforming to laboratory holes or opaque areas P BT C I M i "1. identification criteria obsereed Chrysotile .AMPHIBOLES Amphibole - = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber ciameter apart Crocidolite Ambiguous C = Cluster i>3 intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003021005

NYC-WTC_000208212