NYC-WTC_000201209

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7300 Filter Type / Filter Area: MCE 385 mm? Lab Sample #: 9 Grid Opening Size: 0.01124'

Client Sample #: 02 Area Examined: 0.04496 mm^

GRID BOX: Magnification; 20,,0C)0 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/2/02

Analysis Performed By; MARK PEYSAKHOV

GO, Structure Structure Type Length C of Structure N or C EDS (Nonadb No F B C M >=05 p Chrys Arrphibole Nonasb .Amaig/ND No Coord <5p Elements)

...

Struct = > O.pp >5:1 Aspect Ratio Grid acceptance: '•I- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratorj' identification criteria observed <10% partiCLlats coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p 4= EDS spectrum conforming to laboratory heies or opaque areas identification criteria observed Chrysotile • AMPHIBOLES i Amphibole F = Single Finer Amosite B - Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous ‘ C = Clusts' (>3 Intersections) ■ Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD =.No Structures Detected

CITY_21MC1OO_O11275467

NYC-WTC_000201210