This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage and safety of 4-methylpyridine for industrial use. This standard applies to industrial 4-methylpyridine synthesized from formaldehyde, acetaldehyde, ammonia, etc. This standard does not purport to address all safety issues related to its use. Users are responsible for taking appropriate safety and health measures and complying with relevant national regulations.