NYC-WTC_000200478

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NY’CBOE Volume (liters): 1 840 Lab Group #: 8072 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 11 Grid Opening Size: 0.01124

Client Sample #: 11 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/12/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure TSota EDS No ■(Nonadb F B C M >=05 p I : ■=5p Cfirys Amphibole Nonasb Ambig/ND - No Coorc Elemens) .

/4 <311

LjZZ 4 zah

1 I'

Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to undissolved filter, overlapped or folded Totals -............................. laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid souares <5% F B C M EDS spectrum conforming to laboratory holes or opaque areas , identificatior criteria observed Chrysotile Fa^HIBOLBS Amphibole F = Single Fiber ' Amosite B = Bundle {<3 fibers <1 fiber diameter apart I Crocidolite Ambiguous - C = Cluster (>3 Intersections) I Anthophyllite Non-Ashestos i Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_011274924

NYC-WTC_000200488