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Significance and Use
4.1 The purpose of this practice is to standardize the routine description of peat and other organic soils for various uses (such as, peatland inventories and resource evaluations). This practice 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.
Note 1: This standard is a visual/manual method and is not meant to replace the more precise method of laboratory classification of peat (see Classification ). It should also be noted, this practice is independent of the determination of whether a particluar deposit contains peat that is defined in Classification on the basis of laboratory determination of ash content (see Test Method ).
1.1 This practice covers the visual determination of the degree of humification of peat and other highly organic soils. This practice is not used for the determination of the degree of organic decomposition of organic matter in mineral soils.
1.2 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard” in the title of this document means only that the document has been approved though the ASTM consensus process.
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.
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
D2944 Practice of Sampling Processed Peat Materials
D2974 Test Methods for Moisture, Ash, and Organic Matter of Peat and Other Organic Soils
D4427 Classification of Peat Samples by Laboratory Testing
ICS Number Code 13.080.40 (Hydrological properties of soil)
UNSPSC Code 15101603(Peat)
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ASTM D5715-14, Standard Practice for Estimating the Degree of Humification of Peat and Other Organic Soils (Visual/Manual Method), ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top