GB/T 18883-2002(XG1-2003) "Indoor Air Quality Standards" Amendment No. 1 has been changed from GB/T 18883-2002 Indoor air quality standard.
GB/T 18883-2002(XG1-2003) "Indoor Air Quality Standards" Amendment No. 1 was changed to GB/T 18883-2022 Standards for indoor air quality.
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