Staining Assessment Standard in Fastness Tests

The Grey Scale A03 consists of nine pairs of matte grey and white stripes designed to indicate the depth of perceived staining. Each pair represents a fastness rating corresponding to levels 5, 4-5, 4, 3-4, 3, 2-3, 2, 1-2, 1 .

Features

• Nine pairs of matte grey-white stripes
• Rating system in accordance with international standards.
• ISO 105-A03 compliant
• Ideal for color fastness and stain resistance testing in textile laboratories.

Intended Use

• Staining assessment: Used to objectively grade the amount of staining that occurs on the undyed companion fabric during fastness tests.
• Standard compliance: Its use is defined in the ISO 105-A03 standard and ensures the comparability of test results.