NYC-WTC_000230067

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1960 Lab Group 7192 Filter Type / Filter Area; MCE 385 mm* Lab Sample #: 10 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 3/24/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v/ EDS (Nonadb No F B C M >=05 p >=5tJ Chrys Amphibole Nonasb Ambig/ND No Coorc <5p Elements)

A' £55137 J

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: '/= Positive diffraction oattem properties conforming to <5C% undissolved filter, overlapped or folded Tot^ laboratory identification criteria observed <1C% particulate coverage >50% coverage ate

4= EDS spectrum' conforming to laboratory least 20 unfolded or overiapped grid squares <5% F B c M >5m holes or opaque areas identification criteria observed Chrysotile .AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 iibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CONFIDENTIAL, CITY_21MC100_003388694 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230067