NYC-WTC_000231713

NYC 9/11 Public Portal Document @021 02/11/02 1S:2O FAX 1212 588 0930

TEM Asbestos (air) Comat Sheet Client Name: NYC BOE Volume niters): 1824 Lab Group #: 6637 Filter Type / Filter Area: MCE 385 mm- Lab Sample tt: 6 Grid Opening Size: 0.01124 Ciient Sample #: 09 Area Examined: 0.04496 mm’

GRID BOX: Magnification: oQ OOO GRID TO: J Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 2/11/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Slruciu.'e N or ■'f EC.? I No (Nonadb , F B C M >=057 [ >=5u Chrys lAFipHibola Wonasb Ambig.WC No Coord <5U 1 Etemenls!

1

U

Hr —

StrucT = > O-Su > 5:1 Aspect R^tlo Grid acsSDtince. Positive diffraction Dsttorn properties conformirg to undlosolved filter overlapped or folded Totals latwratory Klenilfioation criteria ottsorvefl <10% particular coverage >50% coverage ate least 50 unfolded or overicpped grid squares '=% F B C M >5p 't.- Eos spaetrum confcm.ng to laborato^ holes or opacuo areas idsntiScatton criteria obsewM ■Chrysotile amphiboles' Amphibole F - Sinale Fiber Amoaiis 0 = Bundle (<S Sbere ci fleer diarreler acin Crocidolite Ambiguous C u Cluster (>3 Iniersections) Anihocfiyilita Non-Asbestos M - Mairi* Tremolite Actinolite Non-Idcntificd' NSD •= Nc Siructures Oetecierf

CITY_21MC100_013073797

NYC-WTC_000231719