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Significance and Use
The purpose of this test method is to standardize the routine description of peat and other organic soils for various uses (such as, peatland inventories and resource evaluations). This test method is a modified version of a widely used system originally developed by L. von Post.3 This test method should be used to supplement other field information, such as, site location, surface morphology, surface vegetation, water table, moisture content, fiber content, wood content, and visually identifiable plant types and parts.
It should be stressed that this is a visual/manual method and is not meant to replace the more precise method of laboratory classification of peat (see Classification D 4427
Note 1—The quality of the result produced by this test method is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D 3740
1.1 This test method covers a system for visually discriminating peat and other highly organic soils on the basis of degree of humification.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D2974 Test Methods for Moisture, Ash, and Organic Matter of Peat and Other Organic Soils
D3740 Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
D4427 Classification of Peat Samples by Laboratory Testing
ICS Number Code 13.080.40 (Hydrological properties of soil)
UNSPSC Code 15101603(Peat)