Yellowness Index

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Yellowness Index is a number calculated from spectrophotometric data that describes the change in colour of a test sample from colourless through to yellow.

The American Standards Test Methods (ASTM) has defined whiteness and yellowness indices. The ASTM's E313 yellowness index is used to determine the degree to which a sample's colour shifts away from an ideal white. The D1925 yellowness index is used for measuring plastics.

Applications

  • Chemicals
  • Coatings
  • Food and Beverage
  • Household Products
  • Plastics
  • Textiles
Title Application Part Number Add to quotation cart
OnColor Lite Chemicals | Coatings | Household Products | Plastics | Textiles 400590
OnColor Premium Chemicals | Coatings | Household Products | Plastics | Textiles 400610
PFXi-195/9 Beer, Malts and Caramels | Chemicals | Coatings | Edible Oils and Fats | Food and Beverage | Household Products | Medical and Clinical Products | Petroleum Oils and Waxes | Pharmaceuticals and Cosmetics | Plastics | Sugar Solutions, Syrups and Honey 1371959
TR 500 Spectrophotometer (1x3 mm Aperture) Coatings | Household Products | Plastics | Textiles 403042
TR 500 Spectrophotometer (1x8mm Aperture) Coatings | Household Products | Plastics | Textiles 403040
TR 500 Spectrophotometer (4 mm Aperture) Coatings | Household Products | Plastics | Textiles 403041
TR 520 Spectrophotometer Coatings | Household Products | Plastics | Textiles 403035
TRA 500 Handheld & Benchtop Reflectance Spectrophotometer Coatings | Household Products | Plastics | Textiles 403220
TRA 520 Handheld & Benchtop Sphere Spectrophotometer Coatings | Household Products | Plastics | Textiles 403225
Applicable Standard ASTM 313
ASTM D1925