ASTM C50/C50M-13(2019)
(Practice)Standard Practice for Sampling, Sample Preparation, Packaging, and Marking of Lime and Limestone Products
Standard Practice for Sampling, Sample Preparation, Packaging, and Marking of Lime and Limestone Products
SIGNIFICANCE AND USE
4.1 The following practices are to be used in obtaining samples that are representative of the lot being sampled. The methodology used will be dependent upon the size and type of material sampled and testing requirements.
4.2 The following practices are intended for use in obtaining samples from material that is ready for sale and are not intended as sampling procedures for quality control purposes. These practices are to be used in obtaining a laboratory sample that will yield results serving as a basis for acceptance or rejection of the lot of material sampled. This does not preclude the use of these practices for quality control purposes.
4.3 The following practices can be used to eliminate bias in sampling. The person or persons responsible for using these practices must be trained and they will be conscientious and timely in their use.
4.4 An agreement between the producer and the consumer on location of sampling, either at the producer's plant or at the destination, is encouraged. Product quality can be affected through careless handling, improper protection, and delayed shipment. It is preferable to sample at the point of loading. The consumer has the right to witness the sampling practices being used.
4.5 This practice may be used to provide a representative sample of lime or limestone products. Due to the variability of limestone and lime and the wide variety of sampling equipment, caution must be exercised in all stages of sampling, from system specification and equipment procurement to equipment acceptance testing and actually taking the final sample.
SCOPE
1.1 This practice covers procedures for the collection and reduction of samples of lime and limestone products to be used for physical and chemical tests.
1.2 This practice further covers inspection, rejection, retesting, packing, and marking of lime and limestone products as it may be used in the chemical, agricultural, and process industries.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C50/C50M − 13 (Reapproved 2019)
Standard Practice for
Sampling, Sample Preparation, Packaging, and Marking of
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Lime and Limestone Products
This standard is issued under the fixed designation C50/C50M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope C110 Test Methods for Physical Testing of Quicklime,
Hydrated Lime, and Limestone
1.1 This practice covers procedures for the collection and
C400 Test Methods for Quicklime and Hydrated Lime for
reduction of samples of lime and limestone products to be used
Neutralization of Waste Acid
for physical and chemical tests.
C1271 Test Method for X-ray Spectrometric Analysis of
1.2 This practice further covers inspection, rejection,
Lime and Limestone
retesting, packing, and marking of lime and limestone products
C1301 Test Method for Major and Trace Elements in Lime-
as it may be used in the chemical, agricultural, and process
stone and Lime by Inductively Coupled Plasma-Atomic
industries.
Emission Spectroscopy (ICP) and Atomic Absorption
(AA)
1.3 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. Within the text, the D2234/D2234M Practice for Collection of a Gross Sample
of Coal
inch-pound units are shown in brackets. The values stated in
each system may not be exact equivalents; therefore, each D3665 Practice for Random Sampling of Construction Ma-
terials
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance E105 Practice for Probability Sampling of Materials
E122 Practice for Calculating Sample Size to Estimate,With
with the standard.
Specified Precision, the Average for a Characteristic of a
1.4 This standard does not purport to address all of the
Lot or Process
safety concerns, if any, associated with its use. It is the
E141 Practice for Acceptance of Evidence Based on the
responsibility of the user of this standard to establish appro-
Results of Probability Sampling
priate safety, health, and environmental practices and deter-
E177 Practice for Use of the Terms Precision and Bias in
mine the applicability of regulatory limitations prior to use.
ASTM Test Methods
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3. Terminology
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 3.1 accuracy—a term generally used to indicate the reliabil-
mendations issued by the World Trade Organization Technical
ity of a sample, a measurement, or an observation and is a
Barriers to Trade (TBT) Committee. measure of closeness of agreement between an experimental
result and the true value.
2. Referenced Documents
3.2 bias (systematic error)—an error that is consistently
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2.1 ASTM Standards:
negative or consistently positive. The mean of errors resulting
C25 Test Methods for Chemical Analysis of Limestone,
fromaseriesofobservationswhichdoesnottendtowardszero.
Quicklime, and Hydrated Lime
3.3 chance error—error that has equal probability of being
positive or negative. The mean of the chance errors resulting
from a series of observations that tends toward zero as the
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This practice is under the jurisdiction of ASTM Committee C07 on Lime and
number of observations approach infinity.
is the direct responsibility of Subcommittee C07.06 on Physical Tests.
Current edition approved Dec. 1, 2019. Published December 2019. Originally
3.4 combined water—water that is chemically bonded to
approved in 1922. Last previous edition approved in 2013 as C50/C50M – 13. DOI:
calcium or magnesium oxide to form hydrate.
10.1520/C0050_C0050M-13R19.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.5 error—the difference of an observation or a group of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
observations from the best obtainable estimate of the true
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. value.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C50/C50M − 13 (2019)
3.6 free water—water that is not chemically bonded to divided by the number of observations l
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