This part of ISO 17299 specifies a gas chromatography test method for the deodorant testing of all textile products. This method applies to the odour component chemicals, such as indole, isovaleric acid, nonenal, and acetic acid with added sodium chloride (NaCl). Two preparation methods are described in this test method: — an odour chemical is applied in a container avoiding contact with a specimen in method A. Each chemical is tested separately; — an odour chemical is injected directly on to the specimen in a container in method B. The chemicals tested in this method are a mixture of acetic acid and sodium chloride (NaCl).