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ASTM D4972-2001  土壤pH值的标准试验方法

标准编号:ASTM D4972-2001
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中文标准名称:土壤pH值的标准试验方法
英文标准名称:Standard Test Method for pH of Soils
标准状态:已作废
代替标准号:ASTM D4972-01
被代替标准号:ASTM D4972-13
语言:英文版,中文版
发布日期:2001
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):农业、林业 >> 土壤与肥料 >> 土壤、肥料综合
中国标准文献分类法(中标分类CCS):环保、保健与安全 >> 土质、土壤学 >> 土壤的化学特性
标准页数:3P.;A4
标准简介:

1.1 This test method covers the measurement of the pH of soils for uses other than for corrosion testing. Such measurements are used in the agricultural, environmental, and natural resources fields. This measurement determines the degree of acidity or alkalinity in soil materials suspended in water and a 0.01 M calcium chloride solution. Measurements in both liquids are necessary to fully define the soil''s pH. This variable is useful in determining the solubility of soil minerals and the mobility of ions in the soil and assessing the viability of the soil-plant environment. A more detailed discussion of the usefulness of this parameter is not warranted here; however, it can be found in many discussions of the subject. A few such discussions are given as Refs (1-6) at the end of the text.

1.2 The values given in SI units are to be regarded as the standard.

1.3 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.

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添加时间:2013/10/17
 
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