NYC-WTC_000218004

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet CHent Name: NYC BOE Volume (liters): 1920 Lab Group #: 6775 Filter Tvpe / Filter Area: -MCE 3>5 m Lab Sample #: 8 Grid Opening Size: 0.0! 124 Client Sample #: EO-10 Area Examined: 0.04496 inm-

GRID BOX: / Magnification: 20.000 GRIDID: X- Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/22;0:

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length ID cl Structure \ or - No F B C M >=05 p Ampnioole Nonasb i -tiCcVl' j INonauu Chrys ■ I Eiementa) No Coord <5p

3

Struct = >0.5p >5:1 Aspect Ratio Grid acceptance: Positive dilfraclion pattern properties conforming to <50% undissotved filter, overlapped or folaed Totals laboratory identification critena observed <10% particulate coverage >50% coverage ate least 20 unfoWed or overlapped grid squares <5% 7= EDS spectrum conforming to laborator/ holes or opaque areas Identification criteria observed Chi^sotilc I AMPHIBOLES •Amphibole I F = Single Fiber I I Amosite B = Bundle (<3 libers <1 liber diameter apart Crocidolite Ambiguous ! C = Cluster (>3 Intersections) Anthophyllite I Non-.Asbestos j Tremolite i! M = Matnx Actinolite I Non-Identified । NSD = No Structures Oetected

CITY_21MC100_002878221

NYC-WTC_0002 18004