NYC-WTC_000201742

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 184G Lab Group #: 7060 Filter Type / Filter Area: MCE 385 mnE Lab Sample #: 11 Grid Opening Size: 0.01124 Client Sample #: 11 Area Examined: 0.04496 GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: lOOKeV # Grid Openings: 4 Analysis Date: 3/13/02 3

Analysis Performed By: < ROMAN FEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or Y EDS No' (Nonadb F B C M >=05 p ~ >=5|J Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Z □xz

Struct = > 0.5ti > 5:1 Aspect Ratio Grid acceptance:

Positive diffraction pattern properties conforming to <50% undissoivBd filter, overlapped or folded Totals laboratory identificatiqn criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% 3 ' J F' B C M 7= EDS spectrum conforming io laboratory holes or opaque areas identification criteria observeo Chrysotile ! AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 libers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophyllite Non-Asbestos Tremolite M= Matrix : Non-Idcntified Actinolite NSC = No Structures Detected'3

CITY_21MC100_005389995

NYC-WTC_000201742