NYC-WTC_000212445

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NVT BOE Volume niters): 1920 Lab Group #: 7422 Filter Type / Filter Area: MCE 385 mim Lab Sample #: 2 Grid Opening Size: 0.01124

Client Sample #: 02 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 4/15/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or n) EDS (Nonadb No F B C M >=05 M Chrys Amphitxsie Nonasb Ambig/ND Coord <5p Elements)

O' 11.

Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance: ■;= Postfive diffraction pattern properties conforming to ^50% undissolved filter, overlapped or folded Totals l.sboratory dentification criteria obsenzed * 10% particulate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% F B C M >5|J EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile i AMPHIBOLES ' Amphibole f- = Single Fiber Amosite fi = Sundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C -• Cluster (>3 intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC1OO_OO2866564

NYC-WTC_000212445