Standard samples and methods of instrumental measurement of Sayb

Details Standard samples and methods of instrumental measurement of Sayb Standard samples and methods of instrumental measurement of Sayb

1991-08-22

1992-08-18

McGraw, Vincent P.

Optics: measuring and testing

Oil testing

356243, G01N 3322, G01N 3326

Patent

active

051393298

ABSTRACT:
A standard sample for use in an instrumental measurement of Saybolt color of a petroleum product with a photoelectric colorimeter, which comprises a mixed solution of 1-(phenylazo)-2-naphthalenol, 3-methyl-1-phenyl-4-(phenylazo)-pyrazol-5-ol and 1,4-bis(butylamino)-9,10-anthracenedione each as a colorant, 1-phenyl-1-xylylethane as a solvent for said colorants and dodecene as a diluent, and a method of instrumental measurement of Saybolt color of a petroleum product, which comprises calibrating a photoelectric colorimeter with the standard sample.

REFERENCES:
patent: 3951854 (1976-04-01), Sias et al.

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