NYC-WTC_000208276

NYC 9/11 Public Portal Document

I EM A^sti)sjfaix)jCouiil^ ( lient Yame: Wf BOI/ \ plume (liters): 1912 Lab (iroup #•. S82S Filter Type / Filter .Area: MCE 385 miTi- Lab Sample #: 23 Grid Opening Size: 0,01 124

Client Sample tr: 23 Area Examined: 0,04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 9/10/02

Analysis Perfurmed By: MARK PEYSAKHOV

GO, Structure i Structure Type J Length ID of Structure % or toS (Nonacb No 3 "cTm"! ’=05 u a :5p j Chrys J Amphibole I Nonasb ■ Amoig/ND No Co orb I ■ , I ; I Elements,

f

I ! I J—1

Struct = > 0,5,u > 5:1 Aspect Ratio Grid acceptance:

0 = Positive ciffraction pattern properties conformir g to <50% undissolved filter, nvertapped or folded Totals aOorator/ identification criteria observed <10% particulate coverage >50% coverage ate least 2C jnfolded cr cveriacoec! gnd squares <5% E B ■ C M EDS soecrum conforming to iaboraiury boles O'opaque areas aennficaiion oriieria ODservec Chrvsoiile AAlPHIBCfLbS Amphibole - - Single fiber Amosite 3 = Bundle (<3 bbers <1 fiber diameter apart Crocidolite .Ambiguous S = Cluster i>3 intersections, Antfiophyllite \on-.Asbestos Tremolite VI = Matrix Actinolite Xon-ldentified VSC = No Structures Detected

CITY_21MC100_003021313

NYC-WTC_000208276