SAYBOLT COLOUR MEASUREMENT ASTM D156
- +30 to -16 Saybolt color scale (ASTM D 156)
- Color of refined petroleum products
- Real me connuous measurement
- Zero maintenance
- High temperature operaon - up to 275°C / 527°F (process and ambient)
- High pressure operation
- For use in zone 1 hazardous areas (EExD)
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ASTM D 156 Saybolt color scale is used in the petrochemical and pharmaceutical industries to grade the yellowness of pale liquid products and to monitor product contamination. The Saybolt color
scale is applicable to a wide range of petroleum products, such as undyed motor and aviaon gasoline, jet propulsion fuels, naphthas and kerosene, in addion to petroleum waxes and pharmaceutical white oils. The Saybolt color scale traditionally relies upon matching a standard colored disc viewed through an adjustable volume of sample. This one dimensional color scale is prone to operator bias and error due to slight variations in the way different operators will perceive color. In essence, color is simply how our brains respond to different wavelengths of light and such a process can be standardized and automated using a Kemtrak DCP007 photometer. |
APPLICATION
The Saybolt color scale is accurately measured using a Kemtrak DCP007 process photometer. The Kemtrak DCP007 utilizes a long life LED light source, precision optical filters and robust industrial grade fiber optics to provide a Saybolt color analyzer with outstanding performance and reliability. A proprietary dual wavelength four channel measurement technology ensures precise trace color measurement. A primary “absorbing” wavelength approximates the perception of the human eye, while a secondary reference NIR wavelength not influenced by the sample color is used to compensate for turbidity and/or fouling of the optical windows. The measurement flange can be installed in various process environments with process and ambient temperatures up to 275°C. |