NYC-WTC_000214324

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters): 1928 Lab Group #: 8245 Filter Type / Filter Area: MCE 385 Lab Sample #: 6 Grid Opening Size; 0.01124 Client Sample #: 06 Area Examined: 0.04496 mm-

GRID BOX: M .unification: 20,000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Ann lysis Date; 6/23/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or y EDS S (Nofiadb !

No Coord No F B C M >=05 p I >=5p Chrys Amphibole Nonasb Ambig/ND Elements) <5p

— J < □’z-

1

i

Struct = > 0.5(i >5:1 Aspect Ratio Grid accepBmjejY i/= Positive oiffraction pattern properties contotminq to <50% undissolvBtf fitter, owriapped or folded Totals laboratory idenlification criteria observed <10% particulate coverage >50% ooverage ate least 20 unfolded or overtapped gnd squares <5% F B C M I >5p '/= EDS spectrum conforming to laboratory holes or opaque areas -----p----- icentftcadon criteria observed Cl. • itile AMPHIBOLES All. I bole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber dianwter apart Crocidolite Am uous C = Cluster (>3 Intersectons) Anthoptiyllite Non-A csios Tremolite I M = Matnx Non-k2 .ified Actinolite NSD = No Structures Detected

CITY_21MC100_002852979

NYC-WTC_000214324