Chemicals used for treatment of water intended for human consumption - sodium chloride for regeneration of ion exchangers 人消耗用水的处理用的化学物质.离子交换器再生用氯化钠
2.
Plastics piping systems for the transport of water intended for human consumption - migration assessment - determination of migration values of plastics pipes and fittings and their joints 用于输送供人消耗用水的塑料管道系统.析出物渗移量的车测定.塑料管道管件和连接件的析出物渗移量的测定