NYC-WTC_000200666

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count S ;et Client Name: NYC BOE - . y/. rie (liters'): 1814.5 Lab Group #: 8243-' . Filter Type iter Area: MCE . 385 nW Lab Sample #: 13 Grid Sling Size: 0.01124 Client Sample#: 13 y^m -xamined: 0.04496 mm^.

GRID BOX: 11 il cation: 20,000 GRID ID: Arceimm m Voltage: 100 KeV # Grid Openings: 4 ivsis Date: 6/23/02

Analysis Performed By: • MARK PEYSAKHOV

GO, Structure Structure Type Length jc.' Tiscture N or, < EDS - (Nonadb No F B C M >=05 p I ' :>=5|j Chrys Amphii Nonasb Ambig/ND No Coord <5m- Bements)

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i ° Struct = > 0.5n > 5; 1 Aspect Ratio , Grid acceptance: ■/= Positive diffraction pattern properties conforming to <50% undissoived filter, overlapped or folded Totals ■ daboratory identification criteria observed <10% particulate coverage >50% coverage ate . least 20 unfolded or overlapped grid squares <5% F B G M >5p : ' EDS spectrum conforming to laboratory ' / holes or opaque areas m 'jdentification criteria observed - mm i ■: smile ^AMPHIBOLES 1 , m F = Single Fiber „ Amosite 1 IMUS- B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster (>3 intersections) Anthophyllite Norn, c.vlOS, Tremolite I M = Matrix Noi I i tied Actinolite NSD = No Structures Detected

NYC-WTC_000200678