ASTM D1500 COLOUR MEASUREMENT
- 0 – 8 ASTM D 1500 Color Scale
- Manufacturing quality and control
- Real time continuous measurement
- Zero maintenance
- High temperature operation - up to 275°C /
- 527°F (process and ambient)
- For use in zone 1 hazardous areas (EExD)
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The ASTM D 1500 color scale is applicable to a wide
range of petroleum products, such as lubricating oils, heating oils, diesel fuel oils and petroleum waxes. The ASTM D 1500 color scale is the principal quality measurement used for the purchase and sale of partially refined oils. As an oil is refined, there exists a correlation between the color of the distillate and the degree of refinement. During the refining process, crude oil is transformed into a range of products with disnct colors ranging from the dark red-black of crude through to the pale yellow hue of the lighter fractions. The distinct petroleum colors can be accurately measured and the refinement process controlled using the ASTM D 1500 color scale. The ASTM D 1500 color scale is also used for product and interface detection, and for product contamination monitoring. |
The ASTM D 1500 color scale is accurately measured using a Kemtrak DCP007 process photometer. The Kemtrak DCP007 uses a long life LED light source, precision optical filters and robust fiber optics that provides an ASTM D 1500 color analyzer with outstanding performance and reliability. Thanks to a proprietary dual wavelength four channel measurement technology, highly colored to trace color detection is no problem. The primary “absorbing” wavelength approximates the perception of the human eye, while a second
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. |