NYC-WTC_000219535

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Natn^ NYC BOL Volume (liters): 1832 Lab Group #: 6932 Filter Type / Filter .Area: .MCE 385 mnr Lab Sample #: 14 Grid Opening Size: 0.01124

Client Sample #: 16 Area Examined: 0.04496 mm-

GRID BOX: Maonification: 20,000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3 4/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure T ype Length ID of Structure N or v EDS Ambig/NO I (Nonaad No F M >=05 M >=5|J Chrys Amphibole ! Nonasb No :oord <5p E erreiiis;

L 2. '2.

Struct = ' t).5u > 5:1 Aspect Ratio Grid acceptance v= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Tot^ <10% particulate coverage >50% coverage ale laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% ' ••FSB C . M \i= EDS spectrum conforming to laboratory holes or opaque areas Identification critena observed Chrvsoiile ; amphiboles Amphibole r = Single Rbei Amosite B = Bundle (<3 fibers <1 fiber diameter acart Crocidolite [ .Ambiguous . C = Cluster (>3 Intersections) Anthophyllite j Son-Asbestos i T remolite !~Non-Identified i M = Matrix Actinolite NSD = No Structures Detected

CITY_21MC100_002881229

NYC-WTC_000219535