NYC-WTC_000228157

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYG BOE Volume (liters): 1840 Lab Group #; 7119 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 9 Grid Opening Size; 0.01124 Client Sample #: 09 Area Examined: 0.04496

GRID BOX; ification: 20,000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/18/02

Analysis Performed By: ROMAN PEYSAKHOV

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

■a U—

Struct» > 0.5(1 > 5:1 Aspect Ratio Grid acceptance: Positive diffrataion pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory Wentlfteation criteria observed <10% partleulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p Vs EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Rber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M< Matrix . Actinolite Non-Identified NSO = No Structures Detected

CITY_21MC100_006617718

NYC-WTC_000228157