NYC-WTC_000205791

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Warren & Panzer Volume (liters): 1440 Lab Group #: 8236 Filter Type / Filter Area: MCE 385 Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 02 Area Examined: 0.0562 mm^ GRID BOX: Masnification: 20,000 GRIDID: "SSL Accelerating Voltage: 100 KeV # Grid Openings: 5 Analysis Date: 6/23/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or \ EDS No (Nonacb F B C M >=05 M • Chrys Amphibole Nonasb j Ambig/ND No Coord <5p Elements)

ii

Struct = > 0.5p > 5:1 .Aspect Ratio Grid acceptance:

v’= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laborator/ identification criteria observed least 20 unfolded or overlapped grid squares <5% fT b C I M ' >5p \ = EDS spectrum conforming to laboratory identification criteria observed holes or opaque areas Chrysotile I I I . AMPHIBOLES -J__ Amphibole F = Single Fiber . Amosite B = Bundle (<3 fibers <1 fiber diameter apart • Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003009189

NYC-WTC_000205791