ASTM D4972-13

ASTM D4972-13

October 2013
Standard Cancelled

Standard Test Method for pH of Soils

Additional informations

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)2 at the end of the text.

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

1.3 All measured and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.

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.


Main informations

Collections

ASTM american standards

Publication date

October 2013

Number of pages

0 p.

Reference

ASTM D4972-13

Classification index

D4972-13
Standard replaced by (1)
ASTM D4972-18
July 2018
Standard Cancelled
Standard Test Methods for pH of Soils

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