An important part of the refining procedure is colour measurement. Colour is an indication of type and quality. In some cases it used as a means of recognition as is such with aviation fuel and ships diesel fuel. Other petroleum products are required to be colourless such as food quality waxes. Scales & Values Grading […]
An important part of the refining procedure is colour measurement. Colour is an indication of type and quality. In some cases it used as a means of recognition as is such with aviation fuel and ships diesel fuel. Other petroleum products are required to be colourless such as food quality waxes.
Grading techniques are widely used to assess product colour by comparison with a representative series of fixed colour standards.
For many product types, a characteristic set of standards was agreed and adopted to aid colour control and the communication of colour specifications; the result is a selection of traditional colour grading scales that have been adopted as industry standards and are still in common use today.
Your Colour Scale requirement determines your instrument choice.