Opacity measurement

The measurements are carried out using a spectrophotometer according to ISO 2471 or DIN 6125. An opacity card (Leneta) type 2 a serves as a black and white base according to DIN 6125.

Test Method Group: optical tests

Norms:

DIN 6125 (2021-10) Packaging test – Opaque and/or white pigmented films – Determination of opacity
ISO 2471 (2008-12) Paper and board - Determination of opacity (paper backing) - Diffuse reflectance method

Required Sample Amount: 5 x DIN A 4

Standard Tests

Opacity, opaque and/or white pigmented films

Specific Norm: DIN 6125

Method using diffuse reflection, with Leneta opacity card as background. By default, measurements are performed with standard light type D65 under gloss inclusion (SCI). On request, measurements with standard light type D 50 and/or under gloss exclusion (SCE) are also possible.

Create test order

Opacity, paper and cardboard

Specific Norm: ISO 2471

Method using diffuse reflection. Ro is measured against a black hollow body, R∞ is measured against a lightproof material stack. By default, measurements are performed with standard light type D65 under gloss inclusion (SCI). On request, measurements with standard light type D 50 and/or under gloss exclusion (SCE) are also possible.

Create test order

« Back to overview