NYC-WTC_000199378

NYC 9/11 Public Portal Document

TE^£AsbejtosXak) CountSheet Client Name: NYC BOL Volume (liters): 1952 Lab Group #: 8745 Filter Type / Fi ter Area: MCE 385 mm^ Lab Sample #: Grid Opetiing Size: 0.0112-1 Client Sample #: Area E xamined: 0.04496 mm- GRID BOX: Mag lification: 20,000 GRID ID: Accelerating Voltage: lOOB/eV # Grid Openings: 4 Anal vsis Date: 8/24/02

Analysis Performed By: MARK PEYSAKHOL'

GO Structure ' Structure Type Length ID of Sti jcture \ or EDS No ‘ (Nonadb F B C M =05 u i >=5)j Chrvs .Amphibole ' Nonasb Ambig/ND No Coord <5u Elements)

A ______ uDd

Struct =■■ > 0.5.U > 5:1 Aspect Ratio Grid acceptance:

\ = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laooraton/ identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F 1 B i C M I >5o \= EDS spectrum conforming to laporatory holes or opaque areas dentificaiioo criteria obsemed Chrvsotile ■AMPHIBOLES AniphiDole r : Siircie -iber Amosite 3 = Bundle m3 tibers <i fiber diameter aoan Crocidolite Ambie ions C = Cluste,' ' . Intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite Actinolite N'on-Identified NSD = Nc Structures Detected

CITY_21MC100_003033680

NYC-WTC_000199378