NYC-WTC_000201675

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters'): 1960 Lab Group #: 7574 Filter Type / Filter Area: MCE 385 Lab Sample #: 7 Grid Opening Size: 0.01124

Client Sample #: 07 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure Nory EDS No (Nonadb F B C M >=05 p l i>=5lJ Chrys Amphibole Nonasb Ambig/ND Coord . <5p Elements';

leg. ¥ a

t I Struct = > 0.5p > 51! Aspect Ratio Grid acceptance: 7 = Positive diffraction pattern properties conforming to undissolved filter, overlapped or folded Totals laboratory identification criteria ODSorjed <10% particuiate coverage >50% coverage ats

'/= EDS spectrum conforming to laboratory identification criteria ooserved leasf 20 unfolded or overlapped grid squares <5% ■■ holes or opaque areas P Chrysotile i B C M

rAMPHIBOLES i. Amphibole F = Single Fiber Amosite I B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite I Ambiguous C = Cluster (>S Intersections) Anthophyllite i Non-Asbestos T remolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_011275785

NYC-WTC_000201681