原规范颁布于一九七五年三月一日。从一九八二年四月至一九八六年四月完成第二次修订任务。同年六月召开送审稿的审查会议。 会议以后,规范修订组根据审查代表的意见和建议,认真讨论,郑重修改,然后报国家计委审批。 现将《室内给水排水和热水供应设计规 The original code was promulgated on March 1, 1975. The second revised task was completed from April 1982 to April 1986. In June of the same year, a review meeting for the review was held. After the meeting, the Code Revision Group carefully discussed the comments and suggestions of the review representatives, and revised them seriously, and then submitted it to the State Planning Commission for approval. "Design rules for indoor water supply, drainage and hot water supply