The quality specification for sulphur contents in petroleum products is an important item related to engine corrosion and environmental emission.
石油产品的硫含量质量指标，是与发动机的腐蚀及环保排放有关的重要项目。
Environmental testing. Part 4: information for specification writers. Test summaries.
环境试验。第4部分：技术规范编制者用信息。试验汇总表。
It is intended that the implementation of an environmental management system described by the specification will result in improved environmental performance.
本标准之意图为借由实施规范中所描述的环境管理系统，以增进环境绩效。
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