GB/T 5750.8-2023 Chinese PDF (GB/T5750.8-2023) GB 20997-2024 English versions: GB/T 45421-2025

English versions: GB/T 45421-2025

English versions: GB/T 23718

English versions: GB/T 45593-2025

92-2024_Chinese: Safety of household and similar electrical appliances - Part 92: Particular requirements for appliances to recover and/or recycle refrigerant from air conditioning and refrigeration equipment (Chinese: 家用和类似用途电器的安全 第92部分：从空调和制冷设备中回收和/或再生制冷剂的器具的特殊要求)

heating and power - Part 2: Multi-energies hybrid driven systems (Chinese: 分布式冷热电能源系统的节能率 第2部分：多能源互补驱动系统)

GB/T 5750.8-2023 Chinese PDF (GB/T5750.8-2023) GB 20997-2024 English versions: GB/T 45421-2025GB T 5750. 8 2023_Chinese: Standard examination methods for drinking water Part 8: Organic indices (Chinese: 8) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 5750. 8 2023