1.1 This standard specifies the method for determining the photostability of paraffin wax, which is applicable to paraffin wax for food, fully refined paraffin wax and semi-refined paraffin wax. 1.2 This standard may involve certain hazardous materials, equipment and operations, but it is not intended to make recommendations on all safety issues related to them. Therefore, it is the user's responsibility to establish appropriate safety and protective measures and develop appropriate management systems before using this standard.