First, the national standard and the line standard should be purchased from the Standardization Department of the Municipal Bureau of Quality and Technical Supervision. Generally, the printing fee for each 30 yuan, plus the printing fee for one page 1 yuan, can also be copied electronically!
Second, enterprise standards must be formulated by themselves, and experts from relevant research institutes can be hired to formulate technical indicators; I am good at compiling enterprise standards. Please contact me if necessary!