GB/T 19510.208-2023 Chinese PDF (GB/T19510.208-2023) GB/T 45119-2024 GB/T 45464-2025_Chinese: Test method for

GB/T 45464-2025_Chinese: Test method for modifier content of SBS modified asphalt for road engineering (Chinese: 道路用苯乙烯-丁二烯-苯乙烯嵌段共聚物（SBS）改性沥青改性剂含量检测方法)

GB/T 44910-2024_Chinese: Amber grading (Chinese: 琥珀分级)

1-2025_Chinese: Optics and photonics - Specifications for telescopic sights - Part 1: General-purpose instruments (Chinese: 光学和光子学 瞄准望远镜规范 第 1 部分：普通性能仪器)

riboflavin

GB/T 22451-2024_Chinese: Common requirements of electromagnetic compatibility for radio communication equipment (Chinese: 无线通信设备电磁兼容性通用要求)

GB/T 19510.208-2023 Chinese PDF (GB/T19510.208-2023) GB/T 45119-2024 GB/T 45464-2025_Chinese: Test method forGB T 19510. 208 2023_Chinese: Controlgear for electric light sources Part 2 8: Particular requirements for ballasts for fluorescent lamps (Chinese: 2 8) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19510. 208 2023