NYC-WTC_000229164

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters); 1888 Lab Group #: 7938 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 10 Grid Openiag Size: 0.01124

Client Sample #.• 10 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRIP ID: Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 6/2/02

Analysis Performed By; MARKPEYSAKHOV

GO. Structure Structure Type Length ID of structure Nor V EDS No (Nonadb F B C M >=05 p i>=5p Chrys AmphSKJle Nona^ AmbtgiND No Coord <5p Elements)

Struct« > O.Sn -> 5.1 Aspect Ratio Gndaxeptance; Pojiave diffraction pattern properties conforming to <50% undBsoked fttw. overtapiped or folded Totals latwalD^WenSfkaiton criteria otoerwed <10% particulatB coimrage >50% cwerage ate least 20 unfolded or overtappad grid squares <5% F B C M >5m '/= EDS spectrijm conforming to foboratory holes or opaque areas identification criteria ofiserved ChrysotUe AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersectonsl j AnthophyHlte Nob-Asbestos Tremolite Matrix Actinolite Non-ldentified NSO = No Structures Detected

CITY_21MC100_002902337

NYC-WTC_000229164