1.1 This standard specifies the product classification, technical requirements, test methods, packaging, marking, storage, transportation and sampling requirements for flame-retardant road asphalt made from petroleum asphalt and flame retardant and suitable for use on asphalt pavement in highway tunnels. . 1.2 This standard applies to road asphalt with flame retardant properties prepared from road petroleum asphalt as raw material and by adding a certain amount of flame retardant. 1.3 This standard does not involve safety regulations related to use. Standard users are responsible for formulating appropriate safety application procedures before use.