NYC-WTC_000195020

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6776 Filter Type / Filter Area: MCE 385 mnr Lab Sample #: Grid Opening Size: 0.01124

Client Sample #: 02 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20.000 GRID ID: 3TW Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2,22/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure M or 'J EDS (Nonadb No F B C M >=05 p : '=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Eft 3^ — 1/

Ci

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance;

y= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage <50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F i F ! B i C i M I EDS spectrum conforming to laboratory holes or opaaue areas t identification critena observed Chrysotile J AMPHIBOLES Amphibole ; = Single Fiber Amosite S = Bunole (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>j inierseciions) Anthophyllite I Non-Asbestos ( Tremolite M = Matrix i Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_0 04153132

NYC-WTC_000195020