It is not possible to settle for a single measure to understand the quality of a textile product, that is, to prove how well it is produced. Numerous physical tests, flammability tests, chemical ecological tests, microbiological tests and product-specific tests are carried out by various accredited laboratories. These tests include fastness tests. Under each heading are dozens of measurements, tests, analyzes and evaluation studies. Numerous fastness assessments are performed under the title of fastness tests alone.

Dry heat fastness is one of them. After the fabrics have been woven and presented to the consumer as a garment, they have to withstand external factors such as washing, cleaning, stain removal, dry cleaning, ironing, perspiration and many more during use. Textile products must have specific fastness properties against them separately or against more than one place.

Textile products are also expected to exhibit fastness to dry heat during ironing. Textile products should not shrink and color change against dry heat and hot ironing. Dry heat fastness is made to determine these properties of fabrics. During these tests, the results are evaluated using the gray scale used in the fading assessment to determine the color change (TS 423-2 EN 20105-A02 Textile - Methods for determining color fastness - Section A02 - Use of the gray scale for the evaluation of fading).

Laboratories accredited according to the TS EN ISO / IEC 17025 standard determine the dry heat fastness to determine the durability of the fabric against dry heat and ironing in accordance with the following standard:

• TS 3515 EN ISO 105-P01 Textile - Color fastness tests - Part P01: Color fastness to dry heat (excluding press ironing)