NYC-WTC_000230433

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1832 Lab Group #: 7033 Filter Type / Filter Area: MCE 385 Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm’

GRID BOX: Magnification: 20,000 GRIDID; Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 3/12/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v' EDS (Nonadb ! No F B C M >=05 p Chrys I Amphibole Nonasb AmbigyND ., No Coord <5p Elements) I ------------ 1

iz ~~r~ ___

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: v’= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% B I C I M pSp V= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile ; I i AMPHIBOLES Amphibole F = Single Fiber Amosite 1 B = Bundle (<3 libers <1 fiber diameter apart Crocidolite Ambiguous T C = Cluster (>3 intersections) Anthophyllite Non-Asbestos T Tremolite T M = Matrix Non-Identified i Actinolite NSD = No Structures Detected

CONFIDENTIAL, CITY_21MC100_003389238 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230433