GB 20997-2024 Chinese PDF GB/T 44978-2024 tests and safety aspects (Chinese:

tests and safety aspects (Chinese: 电气和电子设备机械结构 户外机壳 第3部分：环境要求、试验及安全要求)

English versions: GB/T 45167-2024

setting time and soundness of the Portland cement (Chinese: 水泥标准稠度用水量、凝结时间与安定性检验方法)

300-2025_Chinese: National food safety standard - Determination of L-carnitine in the foods (Chinese: 食品安全国家标准 食品中左旋肉碱的测定)

GB 20997-2024 Chinese PDF GB/T 44978-2024 tests and safety aspects (Chinese:GB 20997 2024_Chinese: Limits and targets of fuel consumption for light duty commercial vehicles (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 20997 2024