发明名称 |
Standard materials and methods for instrumental measurement for ASTM color of petroleum products using said standard materials |
摘要 |
A set of standard materials, which comprises at least two kinds of standard materials, for calibration of a photoelectric colorimeter used for the instrumental measurement of petroleum products for their ASTM color, comprising at least two kinds of standard materials each of which is a mixed solution having a color corresponding to an ASTM color and comprises (a) at least five members selected from the group consisting of seven specific colorants such as 3-methyl-1-phenyl-4-(phenylazo)-pyrazol-5-ol, 1-(phenylazo)-2-naphthalenol and 1-[[4-[(dimethylphenyl)azo]dimethylphenyl]azo]-2-naphthalenol, (b) 1-phenyl-1-xylylethane as a solvent for said colorants, and (c) dodecane as a diluent; and a method for instrumental measurement of petroleum products for their ASTM color by a photoelectric colorimeter, which comprises calibrating the photoelectric colorimeter by the use of said at least two kinds of standard materials.
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申请公布号 |
US5381227(A) |
申请公布日期 |
1995.01.10 |
申请号 |
US19930032881 |
申请日期 |
1993.03.18 |
申请人 |
NIPPON PETROLEUM REFINING CO., LTD.;THE JAPAN PETROLEUM INSTITUTE |
发明人 |
NIIZAWA, AKIHIKO;YAMAGUCHI, MASAHIRO |
分类号 |
G01J3/46;C09B67/22;G01N21/25;G01N33/28;(IPC1-7):G01J1/02 |
主分类号 |
G01J3/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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