The Lucyelec DC-SD156 Saybolt colorimeter is used to determine the color of refined liquid petroleum products, such as undyed automotive gasoline, aviation gasoline, jet fuel, naphtha, kerosene, and medicinal white oil. The Saybolt color refers to the numerical value of the liquid column height that is closest to one of the three standard color plates when observed through the sample liquid column for comparison with the standard color plates. The Saybolt color numbers are specified as ranging from -16 (the darkest) to +30 (the lightest). The Saybolt color test (Saybolt Color) is used for quality control and product identification of refined products with an ASTM color of 0.5 or lower.
The determination of petroleum product color is mainly used in the control process of oil production. Since color is an important quality characteristic of petroleum products and is also a feature that users can easily observe. In some cases, color can reflect the degree of refinement of the product. For petroleum products with a known color range, if the color exceeds this range, it may be contaminated.

1.Complies with ASTM D156 and relevant international standards for measuring the color of liquid petroleum products.
2.This Saybolt colorimeter is equipped with an optical system originally imported from Europe.
3.Certified by the National Standard Testing of the Scientific Metrology Institute, capable of issuing authoritative test reports.
4.Features an aviation-grade aluminum alloy structure for increased stability and durability.
5.Abandons the rough structure of traditional casting processes, utilizing advanced and precise CNC machining.
6.Rigorous quality control ensures long-lasting durability, offering a quality guarantee that exceeds the industry’s similar products by three times the lifespan.
7.Easy and flexible to operate.
8.Provides accurate, fast, and clear test data.

Ⅲ. Technical Specification of ASTM D156 Saybolt Petroleum Color Tester

1	Applicable standards	GB/T 3555; ASTM D156; DIN 51411; FTM 791-101; NFM 07-003
2	Measuring range	-16 (the darkest) to +30 (the lightest)
3	Reproducibility	≤1 color number
4	Repeatability	≤2 color number
5	Optimal operating environment	15-30 degrees Celsius, with ambient humidity below 90%
6	Power supply	220V,50Hz
7	Net weight	7.5 kg

Lucyelec engaged in oil Analysis and electrical test equipment since 2015, is your reliable partner and professional provider of test and measurement instruments in Baoding China. If you have any inquiry about quotation or cooperation, please contact by WhatsAPP: +86-15194785871, or email us at info@lucyelec.com  Our sales representative will reply you within 24 hours. Thank you for your interest in our products.