NYC-WTC_000200613

NYC 9/11 Public Portal Document

TEM Asbestos (airV Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 8190 Tilter Type / Filter Area: MCE 385 mm^ Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 01 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20 000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/20/02

Analysis Performed By: 2 7,..7MARKPEYSAKHOV

GO. Structure Structure Type Length ID of structure Nor -7 EDS (Nonadt .No , F B C M >=0^1) r~>=5|j Chrys Amohibole Nonasb Ambig/ND 2 No Goord <5m Elements)

LYGa'. < ■

I A—

T Struct =>C.5p.> 5:1 Aspect Ratio , Grid accaptarce: •7 i Positive diffraction pattern properties conforming to '^50% undissolved filter, overlapped or folded , Totals H t' a <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or ovedapped grid squares <5% F B C M >5p: t.r ■ <2 v = EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole 7 ' F = Single Fiber r 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_011275024

NYC-WTC_000200613