NYC-WTC_000223711

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: m'C BOE Volume (liters): 1920 Lab Group #: 7447 Filter Type / Filter Area: MCE 3S5 mnC Lab Sample #: 5 GridOpeningSizc: 0.01124

Client Sample #: Area Examined: 0.04496 mm- 05 _ GRID BOX: Magnification: 20,000 GRIDID: Accelerating Voltage: 100 Ke\’ U Grid Openings: 4 Analysis Date: 4 17 02

Analysis Performed By: ROMAN PEYSAK.HOV

GO. Structure Structure Type Length ID of Structure N or \ No F B C M >=05 p :>-5h Chrys Afrphibote Nonasb 'ArrlngiNb-i No Coord <5p I Eiemenis) '

2g ■ £2

Struct = > 0.5n > 5:1 Aspect Ratio Grid acceptance: 9 = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% i F i B C M '/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile \ AMPHIBOLES Amphibole I F = Single Fiber Amosite S = Bundle i<3 fibers <1 fiber diameter apart Crocidolite .Ambiguous j C = Cluster i>3 Intersections) Anthophyllite \on-Asbestos I Tremolite M = Matrix Actinolite Non-Identified i NSD = No Sbuclures Detected

CITY_21MC100_002919798

NYC-WTC_00022371 1