NYC-WTC_000212875

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: IVVC BOE Volume niters): 1928 Lab Group #: 8106 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 6 Grid Opening Size: 0.01124

Client Sample #: 06 Area Examined; 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV Analysis Date: 6/15/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS (Nonadb No F B C >=05 U >=5(j Chrys Amphibole Nonasb Ambig/ND No Coord <5tJ Elements)

Struct = > 0.5n >5:1 Aspect Ratio Grid acceptance: 'Z = Positive diffraction pattern properties conforming to <50% undissolved RKer, ovedapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5ij EDS spectrum conforming to laboratory holes or opaque areas idenbfication criteria observed Chrysotile AMPHIBOLES Amphibole r = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C - Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite W = Mainx Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_0 02852502

NYC-WTC_000212875