This standard specifies the classification and code, size, shape, weight, technical requirements, inspection and test, packaging, marking and quality certificate of cold-rolled tin-plated steel sheets and strips. This standard applies to primary cold-rolled tinned steel sheets and strips with a nominal thickness of 0.15mm to 0.60mm and secondary cold-rolled tinned steel sheets and strips with a nominal thickness of 0.12mm to 0.36mm (hereinafter referred to as steel sheets and strips) .