On November 1, 54 mandatory national standards, 465 recommended national standards, and 1 guiding technical document began to be implemented. Among them, important national standards in fields such as noise limits for machinery and equipment, classroom lighting and lighting, urban compressed natural gas supply, and age-appropriate services will provide standard support for ensuring production safety and personal health and safety, ensuring heating and gas supply in winter, and promoting the healthy development of related industries.

On November 1, 54 mandatory national standards, 465 recommended national standards, and 1 guiding technical document began to be implemented. Among them, important national standards in fields such as noise limits for machinery and equipment, classroom lighting and lighting, urban compressed natural gas supply, and age-appropriate services will provide standard support for ensuring production safety and personal health and safety, ensuring heating and gas supply in winter, and promoting the healthy development of related industries.