NYC-WTC_000212636

NYC 9/11 Public Portal Document

TEM Asbt tos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 7894 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 02 Area Examined: 0.04496 mm-'

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 5/29/02

Analysis Performed By: __ R(, :anpeysakhov

GO. Structure structure Type .ngth ID of Structure N or EDS No (Nonadb F B C >=05 >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5|J Elements)

a 2 '-'

Struct = > 0.5g >5:1 Aspect Ratio Grid accepta: a/= Positive diffraction pattern properties conforming to <50% undiss. Iter, overlapped or folded Totals laboratory identification criteria observed <10% panic verage >50% coverage ate least 20 unF overlapped grid squares <5% F B C M >5m V= EDS spectrum conforming to laboratory holes or o;... js identification criteria observed Chrysotile AMPIIi iS Amphibole F = Single Fiber An- B = Bundle (<3 fibers <1 fiber diameter apart Croc Ambiguous C = Cluster (>3 Intersections) Anth; e Non-Asbestos Tree M = Matrix Non-Identified Ac NSD = No Structures Detected

CITY_21MC100_002867426

NYC-WTC_000212636