ISO 15741:2016规定了输送非腐蚀性气体的钢管和管件中液体环氧涂料和此类涂料的内涂层的要求和试验方法。它还涉及油漆的应用。其他油漆或油漆系统不排除在外，前提是它们符合ISO 15741:2016中给出的要求。涂层由一层组成，通常通过无空气喷涂或其他合适的喷涂技术在车间喷涂在喷砂清理的钢材上。涂抹和固化的漆膜必须光滑，以减少所需的摩擦。刷涂仅用于小型维修作业。

ISO 15741:2016 specifies requirements and methods of test for liquid epoxy paints and internal coatings of such paints in steel pipes and fittings for the conveyance of non-corrosive gas. It also deals with the application of the paint. Other paints or paint systems are not excluded provided they comply with the requirements given in ISO 15741:2016. The coating consists of one layer, which is normally shop-applied on blast-cleaned steel by airless spray or other suitable spraying techniques. The applied and cured paint film must be smooth to give the desired reduction in friction. Brush application is only used for small repair jobs.