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ASTM D512-2012  测定水中氯离子含量的标准试验方法

标准编号:ASTM D512-2012
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中文标准名称:测定水中氯离子含量的标准试验方法
英文标准名称:Standard Test Methods for Chloride Ion In Water
首次发布日期:确认有效
标准状态:确认有效
代替标准号:ASTM D512-2010
语言:英文版,中文版
发布日期:2012
实施日期:2012-07-15
标准类别:美国材料与试验协会ASTM
中国标准文献分类法(中标分类CCS):环保、保健与安全 >> 水质 >> 水的化学物质检验
标准页数:8P.;A4
标准简介:

Chloride ion is under regulation in waste water, and must, therefore, be measured accurately. It is highly detrimental to high-pressure boiler systems and to stainless steel, so monitoring is essential for prevention of damage. Chloride analysis is widely used as a tool for estimating the cycles of concentration, such as in cooling tower applications. Processing waters and pickling solutions used in the food processing industries also require dependable methods of analysis for chloride.

1.1 These test methods cover the determination of chloride ion in water, wastewater (Test Method C only), and brines. The following three test methods are included:

Sections

Test Method A (Mercurimetric Titration)7 to14
Test Method B (Silver Nitrate Titration)15 to 21
Test Method C (Ion-Selective Electrode Method)22 to 29

1.2 Test Methods A, B, and C were validated under Practice D2777 x2013; 77, and only Test Method B conforms also to Practice D2777 x2013; 86. Refer to Sections 14, 21, and 29 for further information.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 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. For a specific hazard statement, see 26.1.1.

1.5 A former colorimetric test method was discontinued. Refer to Appendix X1 for historical information.

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添加时间:2013/08/15
 
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