NYC-WTC_000213248

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6068 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 14 Grid Opening Size: 0.01124

Client Sample #: 16 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRIDLD: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/9/01

Analysis Performed By: ROMAN PEYSAKHOV

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

Pt If •' ¥ // 1

Struct = > 0.5 p .> 5:1 Aspect Ratio Grid acceptance: >/= 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 overlapped grid squares <5% F B C M >5u EDS spectrum conforming tc laboraiory holes or opaque areas identification criteria observed Chrysotile "amphiboles i Amphibole F = Single Fiber i Amosite i B = Bundle (<3 fibers <1 fiber diameter apart : Crocidolite , Ambiguous C = Cluster (>3 Intersections) Anthophyllite । Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_2 IMCl 0 Ci_0 00461958 NYC-WTC_000213248