Standard for Evaluating Staining in Fastness Tests

Grey Scale A03 helps you evaluate staining levels during your laboratory fastness tests in a reliable and objective way.

Grey Scale A03 consists of nine pairs of matte grey and white strips designed to represent the perceived staining depth. Each pair corresponds to a fastness grade of 5, 4-5, 4, 3-4, 3, 2-3, 2, 1-2, and 1.

Features

• Nine pairs of matte grey-white strips
• Internationally standardized grading system
• ISO 105-A03 compliant
• Ideal for color fastness and stain resistance tests in textile laboratories

Intended Use

• Staining evaluation: Used to objectively grade the level of staining on undyed adjacent fabric during fastness tests.
• Standard compliance: Its use is defined in ISO 105-A03 and ensures comparability of test results.