There are specific industry standards and test protocols for determining colorfastness in textiles. These standards provide guidelines and procedures for conducting colorfastness tests and ensure consistency and comparability of results across different laboratories and manufacturers. Two widely recognized organizations that develop such standards are the American Association of Textile Chemists and Colorists (AATCC) and the International Organization for Standardization (ISO).

Here are some key colorfastness standards commonly used in the textile industry:

1. AATCC Test Methods: The AATCC publishes a comprehensive set of test methods related to colorfastness, including crocking (AATCC Test Method 8), laundering (AATCC Test Method 61), lightfastness (AATCC Test Method 16), and many more. These methods provide detailed instructions on sample preparation, test conditions, and evaluation criteria.

1. ISO Colorfastness Standards: The ISO has developed a series of standards related to colorfastness testing. Notable standards include ISO 105-A series (covering various colorfastness tests), ISO 105-C series (covering colorfastness to washing), and ISO 105-B series (covering colorfastness to light).

1. ASTM International Standards: ASTM International has several standards related to colorfastness testing, such as ASTM D2054 (covering colorfastness to crocking), ASTM D5034 (covering colorfastness to washing), and ASTM D1729 (covering colorfastness to light).

These standards specify the testing methods, equipment, specimen preparation, test conditions, and evaluation procedures for various colorfastness tests. They help ensure that colorfastness testing is conducted consistently and that the results obtained from different laboratories or manufacturers can be compared reliably.

It's important to refer to the specific standards relevant to the type of colorfastness test being conducted to ensure accurate and standardized testing procedures.