ASTM D2944-13
(Practice)Standard Practice of Sampling Processed Peat Materials
Standard Practice of Sampling Processed Peat Materials
SIGNIFICANCE AND USE
4.1 This practice provides a uniform procedure for obtaining representative samples when obtained from multiple sources. It provides a sample that is more representative of a product that may be heterogeneous in nature. Producing a representative sample of a material is central to the validity of results any testing/analytical procedure. Note 1—The quality of the result produced by this standard 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 D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.
SCOPE
1.1 This practice covers procedures for obtaining samples for use in the determination of moisture, ash, and organic matter; volume; pH; volume weights, water-holding capacity, and air capacity of water-saturated peat materials; total nitrogen; particle size range; and sand content of processed peat materials. This procedure is valid for sampling peat materials for horticultural purposes and produces a sample that is representative of a material.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are for information only.
1.3 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.
1.4 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.
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Designation: D2944 − 13
StandardPractice of
1
Sampling Processed Peat Materials
This standard is issued under the fixed designation D2944; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D3740 Practice for Minimum Requirements for Agencies
Engaged in Testing and/or Inspection of Soil and Rock as
1.1 This practice covers procedures for obtaining samples
Used in Engineering Design and Construction
for use in the determination of moisture, ash, and organic
matter; volume; pH; volume weights, water-holding capacity,
3. Terminology
and air capacity of water-saturated peat materials; total nitro-
3.1 Definitions:
gen; particle size range; and sand content of processed peat
3.1.1 For definitions of terms used in this practice, refer to
materials. This procedure is valid for sampling peat materials
Terminology D653.
for horticultural purposes and produces a sample that is
representative of a material.
4. Significance and Use
1.2 The values stated in SI units are to be regarded as the
4.1 This practice provides a uniform procedure for obtain-
standard. The inch-pound units in parentheses are for informa-
ing representative samples when obtained from multiple
tion only.
sources. It provides a sample that is more representative of a
1.3 This practice offers a set of instructions for performing
product that may be heterogeneous in nature. Producing a
one or more specific operations. This document cannot replace
representative sample of a material is central to the validity of
education or experience and should be used in conjunction
results any testing/analytical procedure.
with professional judgment. Not all aspects of this practice may
NOTE 1—The quality of the result produced by this standard is
be applicable in all circumstances. This ASTM standard is not
dependent on the competence of the personnel performing it, and the
intended to represent or replace the standard of care by which
suitability of the equipment and facilities used. Agencies that meet the
the adequacy of a given professional service must be judged,
criteria of Practice D3740 are generally considered capable of competent
nor should this document be applied without consideration of
and objective testing/sampling/inspection/etc. Users of this standard are
cautioned that compliance with Practice D3740 does not in itself assure
a project’s many unique aspects. The word ”Standard” in the
reliable results. Reliable results depend on many factors; Practice D3740
title of this document means only that the document has been
provides a means of evaluating some of those factors.
approved though the ASTM consensus process.
1.4 This standard does not purport to address all of the
5. Apparatus
safety concerns, if any, associated with its use. It is the
5.1 Slotted Tube Corer, a single or double tube, with holes
responsibility of the user of this standard to establish appro-
(slots) along the length, pointed end and a minimum 25-mm
priate safety and health practices and determine the applica-
(1-in.) inside diameter.
bility of regulatory limitations prior to use.
5.2 Sample Splitter.
2. Referenced Documents
5.3 Oil Cloth.
2
2.1 ASTM Standards:
5.4 Sample Containers which can hold the type and size of
D653 Terminology Relating to Soil, Rock, and Contained
sample obtained and be hermetically sealed.
Fluids
5.5 Indelible Markers for marking containers or other suit-
able record system.
1
This practice is under the jurisdiction of ASTM Committee D18 on Soil and
6. Procedure
Rock and is the direct responsibility of Subcommittee D18.22 on Soil as a Medium
for Plant Growth.
6.1 Take a representative sample from the lot or shipment
CurrenteditionapprovedJune1,2013.PublishedJuly2013.Originallyapproved
with a slotted tube corer as follows:
in 1971. Last previous edition approved in 2008 as D2944 – 71 (2008). DOI:
10.1520/D2944-13.
6.1.1 Packaged or Baled Peats—Lay the bag or bale hori-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
zontally and remove the core diagonally from end to end.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Determine the number of cores as follows: from1–4 bags,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. sample all bags, take at least 1 core from each bag for a total
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D2944 − 13
of at leas
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This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D2944 − 71 (Reapproved 2008) D2944 − 13
Standard Test Method Practice of
1
Sampling Processed Peat Materials
This standard is issued under the fixed designation D2944; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers procedures for obtaining samples for use in the determination of moisture, ash, and organic matter;
volume; pH; volume weights, water-holding capacity, and air capacity of water-saturated peat materials; total nitrogen; particle size
2
range; and sand content of processed peat materials.
1.2 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. Significance and Use
2.1 This test method provides a uniform procedure for obtaining relatively homogeneous samples when obtained from a
multiplicity of sources.
3. Apparatus
3.1 Slotted Tube, single or double, or slotted tube and rod, all with pointed ends and a minimum 1-in. (25-mm) diameter. The
Pennsylvania State Forage Sampler is a satisfactory core sampler.
4. Procedure
4.1 Take a representative sample from the lot or shipment as follows:
4.1.1 Packaged or Baled Peats—Lay the bag or bale horizontally and remove the core diagonally from end to end. Determine
the number of cores as follows: from lots of 1 to 10 bags, sample all bags; from lots of 11 or more, sample 10 bags. Take 1 core
from each bag sampled except for lots of 1 to 4 bags, take enough diagonal cores from each bag to total at least 5 cores.
4.1.2 Bulk Samples—Draw at least 10 cores from different regions.
4.1.3 Small Containers (10 lb (4.5 kg)or less)—Take the entire package. Working rapidly to prevent moisture losses, reduce the
composite sample to not less than 500 g by weight or 2 L by volume by mixing on a clean oilcloth or paper and quartering. Place
sample in an airtight container.
4.2 Sampling by random “grab” procedure is necessary if the particle size range is to be determined or if representative sample
cannot be taken with a core sampler.
5. Precision and Bias
5.1 Precision—Due to the nature of the soil or rock materials tested by this test method it is either not feasible or too costly at
this time to produce multiple specimens which have uniform physical properties. Any variation observed in the data is just as likely
to be due to specimen variation as to operator or laboratory testing variation. Subcommittee D18.18 welcomes proposals that would
allow for development of a valid precision statement.
5.2 Bias—There is no accepted reference value for this test method, therefore, bias cannot be determined.
1
This test method practice is under the jurisdiction of ASTM Committee D18 on Soil and Rock and is the direct responsibility of Subcommittee D18.22 on Soil as a
Medium for Plant Growth.
Current edition approved Jan. 1, 2008June 1, 2013. Published February 2008July 2013. Originally approved in 1971. Last previous edition approved in 19982008 as
D2944 – 71 (1998).(2008). DOI: 10.1520/D2944-71R08.10.1520/D2944-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
for the sampling of undisturbed peats in situ are presently being prepared by ASTM Committee D18.volume information, refer to the standard’s Document Summary page
on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D2944 − 13
6. Keywords
6.1 peat; samples; sampling
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D2944 − 13
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in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk
of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and
if not revised, eith
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