Designation:D 4427-92(Reapproved 2002)1 INTERNATIONAL Standard Classification of Peat Samples by Laboratory Testing1 This standard is issued under the fixed designation D 4427:the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. e'NoTE-Editorial changes were made in September 2002. 1.Scope 3.2 Definitions of Terms Specific to This Standard: 1.1 This classification is a system for subdividing and 3.2.1 absorbency-the maximum amount of moisture (by assigning nomenclature to peat samples through laboratory weight)that can be held by the peat.This is expressed in terms tests. of the water-holding capacity as measured using Test Method 1.2 This standard does not purport to address all of the D2980. safety problems if any associated with its use.It is the 3.2.2 acidity-this is expressed as the pH of the peat in responsibility of the user of this standard to establish appro- water as measured using Test Method D 2976. priate safety and health practices and determine the applica- 3.2.3 ash content-the percentage by dry weight of material bility of regulatory limitations prior to use. remaining after the oven dry peat is burned using the methods described in Test ...
ASTM D 4427 - 92 （Reapproved 2002）e1 Standard Classification of Peat Samples by Laboratory Testing1.pdf
