【英文标准名称】: Standard Test Method for Silt Density Index (SDI) of Water 【原文标准名称】: 水的淤泥密度指数(SDI)的标准试验方法 【标准号】: ASTM D4189-2007 【标准状态】: 现行 【国别】: 【发布日期】: 2007 【实施或试行日期】: 【发布单位】: 美国材料与试验协会(US-ASTM)【起草单位】: D19.08【标准类型】: (Test Method)【标准水平】: ()【中文主题词】: 密度;含量测定;索引;淤泥;污泥;测试;水【英文主题词】: RO; reverse osmosis; SDI; silt density index【摘要】: The SDI can serve as a useful indication of the quantity of particulate matter in water. The SDI can be used to determine effectiveness of various processes such as filtration or clarification used to remove particulate matter. The SDI has been empirically correlated with the fouling tendency of some water treatment equipment such as reverse osmosis devices. The SDI may vary as a function of water temperature, and values obtained at different temperatures may not necessarily be comparable. The SDI will vary with the membrane filter manufacturer. Thus, SDI values obtained with filters from different membrane manufacturers cannot be comparable.1.1 This test method covers the determination of the silt density index (SDI) of water. This test method can be used to indicate the quantity of particulate matter in water and is applicable to relatively low (1.0 NTU) turbidity waters such as well water, filtered water, or clarified effluent samples. Since the size, shape, and nature of particulate matter in water may vary, this test method is not an absolute measurement of the quantity of particulate matter.1.2 This test method is not applicable for reagent grade water Types I, II, and III of Specification D 1193, or effluents from most reverse osmosis and ultrafiltration systems.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.【中国标准分类号】: Z16【国际标准分类号】: 13_060_70【页数】: 3P.;A4【正文语种】: 作者: dingkaiwang 时间: 2013-8-28 12:50:46
