NYC-WTC_000226756

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volame (litsrs): 1840 Lab Group #: 6832 Filter Type / Filter Area: MCE 383 mm- Lab Sample #: 9 Grid Opening Size: 0.0 i 124

Client Sample #: 09 Area Examined: 9,94496 mm-

GRID BOX: t c . Magnilication: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/26/02

Analysis Performed By: /j ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor ■'( EDS (Nonadb No F B C -05 u >=5|j Chrys Amphibole Nonasb Ambig/ND Elements) i ^o .Coord <5|J ------------- i -A-

Struct = > 0.5u > 5:1 Aspect Ratio Grid acceptance:

9= Positive diffraction pattern properties conforming to <50% undissQlved 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 >5p N EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed CluYSOtile AMPHIBOLES Amphibole F = Single Fiber Amosite 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_21MC100_002923017

NYC-WTC_000226764