日本日产化工公司最近开发成功一种用于聚氯乙烯管的钙-锌(Ca-Zn)基稳定剂,并决定从2002年起开始大量生产并投放市场。在日本,早在1993年已禁止把铅基稳定剂用于PVC供水管道。考虑到铅的毒性对环境的影响,预计在2003年,把铅基稳定剂用于PVC排水管也将受到禁止或限制。另外,现有的用铅稳定的PVC供水管的更换工作可能提前于2002年开 Japan’s Nissan Chemical recently developed a calcium-zinc-based stabilizer for polyvinyl chloride pipes and decided to start mass production on the market starting in 2002. In Japan, as early as 1993, the use of lead-based stabilizers in PVC water supply pipelines was banned. Taking into account the environmental impact of lead toxicity, it is expected that the use of lead-based stabilizers in PVC drains will also be banned or restricted in 2003. In addition, the existing lead-stabilized PVC water supply pipe may be replaced in advance of 2002