This Standard specifies limit, test method, sampling and inspection rules of VCM, soluble lead, soluble cadmium and other volatile in polyvinyl chloride floor coverings (also called polyvinyl chloride floor leather). This Standard is applicable to foaming or non-foaming chloride floor coverings (hereinafter to be referred as floor coverings) with or without backing, which are manufactured by coating, rolling and bonding process with polyvinyl chloride resin as main raw material and suitable auxiliary agent. This Standard is also applicable to polyvinyl chloride composite leather laid on kang (a heatable brick bed in the north of China) and polyvinyl chloride floor used for vehicles.