NYC-WTC_000226578

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: IVYC BOE Volume (liters): 1840 Lab Group #: 6659 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 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: 2/13/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorN EDS (Noradb No F B C M >=05 p >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

2^ t/ y If

Struct = > 0.5)1 >5:1 Aspect Ratio Grid acceptance:

A- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded - Totals laborato7 identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C >5u EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES J Amphibole F = Single Fiber Amosite 6 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyltite Non-Asbestos T remolite M = Matrix Non-ldentified Actinolite NSD = No Structures Detected

CITY_21MC100_002922712

NYC-WTC_000226579