NYC-WTC_000192039

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1944 Lab Gntnii 7283 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 14 Grid Opening Size: 0.01124 Client Sample #: 14 Area Examined: 0.04496 GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/31/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v EDS No (Nonadb F B C M ■ >=05 M >=5p Chrys Amphibole Nonasb Ambig/ND No Coon! <5m Elements)

2-

Struct = •> ' I..A .> 5:1 Aspect Ratto Grid acceptance: •J- Positive nif;rf!.-ion pattern properties conforming to <50% undissolved filter, overiapped.or folded Totals laboratory identih -ition criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B G M >5m EDS speci:conforming to laboratory holes or opaque areas identification u:? ; observed Chrysotile AMPHIBOLES , Amphibole F = Single Fisk Amosite 8 = Bunole{: - 'r rs<l liber diameter apart Crocidolite Ambiguous C = Cluster I' .' i ;rsections) Anthophyllite Non-Asbestos Tremolite M = Matrix • Non-Identifi.ed Actinolite NSD = No Strtic;, is Oetecied

CITY_21MC100_003092136

NYC-WTC_000192039