What is the standard validity period? On March 3, 200414, the period from the implementation date of the standard to the reconfirmation, revision or abolition of the standard is called the validity period of the standard; Also known as the standard age. Due to different situations in different countries, the validity period of the standard is also different. According to ISO standards, it is reviewed every five years, with an average standard life of 4.92 years. China has stipulated national standards in the national standards management measures.

From the date of implementation of the standard to the time when the standard is reconfirmed, revised or abolished, it is called the validity period of the standard; Also known as the standard age. Due to different situations in different countries, the validity period of the standard is also different. According to ISO standards, it is reviewed every five years, with an average standard life of 4.92 years. China's national standards management measures stipulate that national standards should be reviewed within five years after implementation, that is, the validity period of national standards is generally five years.