Reflectance standard

Details Reflectance standard Reflectance standard

1986-07-07

1988-01-05

Terapane, John F.

Compositions

Nonreactive analytical, testing, or indicating compositions

524423, 252600, G01N 3100, G01N 3300

Patent

active

047175044

ABSTRACT:
Reflectance standards are prepared in accordance with the present invention by incorporating at least 40 percent by weight of barium sulphate into acrylate polymer such as methyl acrylate or methyl methacrylate. Thickness of the resulting polymer should be in excess of 0.25 centimeters. By incorporating varying percentages of carbon black in the mixture during mixing--various reflectance values can be obtained. The resulting reflectance standards can be utilized in the form of chips, plaques, sheets, or can be molded into various configurations, including that of an integrating sphere.

REFERENCES:
patent: 3405088 (1968-10-01), Slocum
patent: 3773708 (1973-11-01), Takahashi et al.
patent: 3861945 (1975-01-01), Hartzell et al.
patent: 3933875 (1976-01-01), Brose et al.
patent: 4510196 (1985-04-01), Carter, Jr.

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