NYC-WTC_000228770

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name; NYC BOE Volume /liters): 1800 Lab Group #: 7646 Filter Type / FUter Area: MCE 385 mm" Lab Sample 2 Grid Opening Size: 0.01124 Client Sample #: 04 Area Examined: 0.04496 mm"

GRIP BOX: Magnilication: 20 000 GRID IP: Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 5/5/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor v EDS No (Nonadb F B C M >-05 u Chrys An^iboie Ncnasb Antig/ND No Coord I >=5M Elements) <5p \

dO-** -

Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance V = Positive difftaction pattern properties contorrning to <50% undisolved fitter, overtapperi or folded Totals laboratory identification criteria observed <10% particjiate coverage >50% coverage ate least 20 unfolded or oveitappec grid squares <5% F B C M >Su EDS spectrum conforming to laboratory boles or opaque areas idenlification cntena observed Chrysotile ■ amphiboles Amphibole F - Single Fiber Amosite 1 B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster l>3 Intersections) ; Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite i. Non-Identified NSD = No Structures Detected

CITY_21MC100_002901659

NYC-WTC_000228770