NYC-WTC_000230177

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): I960 Lab Group #: 6491 Filter Type / Filter Area: MCE 385 inm’ Lab Sample #: 19 Grid Opening Size: 0.01124 Client Sample #: 19 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 1/28/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor\ EDS No (Nonadb F B C M >=05 (J >=5(j Chrys Amphibole Nonasb■ Ambig/ND Elements) No Coord <5p

2D

a

Struct = > 0.5(1 _>'5:1 Aspect Ratio Grid acceptance: '/= Positive diffraction pattern properties conforming to ’=50% undissolved filter, ovetfapped or folded Totals laboratory identification criteria observed , <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p ’/= EDS spectnjm conforming to laboratory. holes or opaque areas identification criteria obsen/ed Chrysotile AMPHIBOLES 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 Stnjctures Detected

CONFIDENTIAL, CITY_21MC100_003388877

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230177