ASTM C50/C50M-12
(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
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.
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.
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.
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.
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 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: C50/C50M − 12
StandardPractice for
Sampling, Sample Preparation, Packaging, and Marking of
1
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 Department of Defense.
1. Scope E141 Practice for Acceptance of Evidence Based on the
Results of Probability Sampling
1.1 This practice covers procedures for the collection and
E177 Practice for Use of the Terms Precision and Bias in
reduction of samples of lime and limestone products to be used
ASTM Test Methods
for physical and chemical tests.
1.2 This practice further covers inspection, rejection,
3. Terminology
retesting, packing, and marking of lime and limestone products
3.1 accuracy—a term generally used to indicate the reliabil-
as it may be used in the chemical, agricultural, and process
ity of a sample, a measurement, or an observation and is a
industries.
measure of closeness of agreement between an experimental
1.3 This standard does not purport to address all of the result and the true value.
safety concerns, if any, associated with its use. It is the
3.2 bias (systematic error)—an error that is consistently
responsibility of the user of this standard to establish appro-
negative or consistently positive. The mean of errors resulting
priate safety and health practices and determine the applica-
fromaseriesofobservationswhichdoesnottendtowardszero.
bility of regulatory limitations prior to use.
3.3 chance error—error that has equal probability of being
positive or negative. The mean of the chance errors resulting
2. Referenced Documents
from a series of observations that tends toward zero as the
2
2.1 ASTM Standards:
number of observations approach infinity.
C51 Terminology Relating to Lime and Limestone (as used
3.4 combined water—water that is chemically bonded to
by the Industry)
calcium or magnesium oxide to form hydrate.
C702 PracticeforReducingSamplesofAggregatetoTesting
3.5 error—the difference of an observation or a group of
Size
observations from the best obtainable estimate of the true
D75 Practice for Sampling Aggregates
value.
D2234/D2234M Practice for Collection of a Gross Sample
of Coal
3.6 free water—water that is not chemically bonded to
D3665 Practice for Random Sampling of Construction Ma-
calcium or magnesium oxide.
terials
3.7 gross sample—a sample representing one lot of material
E11 Specification for Woven Wire Test Sieve Cloth and Test
and composed of a number of increments on which neither
Sieves
reduction nor division has been performed.
E105 Practice for Probability Sampling of Materials
3.8 increment—a small portion of the lot collected by one
E122 Practice for Calculating Sample Size to Estimate,With
operation of a sampling device and normally combined with
Specified Precision, the Average for a Characteristic of a
other increments from the lot to make a gross sample.
Lot or Process
3.9 laboratory sample—refers to the sample after the initial
preparation from which the analytical sample is obtained.
1
This practice is under the jurisdiction of ASTM Committee C07 on Lime and 3.10 lot—a discrete quantity of material for which the
is the direct responsibility of Subcommittee C07.06 on Physical Tests.
overall quality to a particular precision needs to be determined.
Current edition approved July 1, 2012. Published July 2012. Originally approved
3.11 precision—a term used to indicate the capability of a
in 1922. Last previous edition approved in 2006 as C50 - 00 (2006). DOI:
10.1520/C0050_C0050M-12.
person, an instrument, or a method to obtain repeatable results;
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
specifically, a measure of the chance error as expressed by the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
variance, the standard error, or a multiple of the standard error
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. (see Practice E177).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C50/C50M − 12
3.12 representative sample—a sample collected in such a 4.4 An agreement between the producer and the consumer
manner that every particle in the lot to be sampled is equally on location of sampling, either at the producer’s plant or at the
represented in the gross or divided sample. destination, is encouraged. Product quality can be aff
...
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:C50–00 (Reapproved 2006) Designation:C50/C50M–12
Standard Practice for
Sampling, Sample Preparation, Packaging, and Marking of
1
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 Department of Defense.
1. 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 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
2
2.1 ASTM Standards:
C51 Terminology Relating to Lime and Limestone (as used by the Industry)
C702 Practice for Reducing Samples of Aggregate to Testing Size
D75 Practice for Sampling Aggregates
D2234/D2234M Practice for Collection of a Gross Sample of Coal
D3665 Practice for Random Sampling of Construction Materials
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E105 Practice for Probability Sampling of Materials
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or
Process
E141 Practice for Acceptance of Evidence Based on the Results of Probability Sampling
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
3. Terminology
3.1 accuracy—a term generally used to indicate the reliability of a sample, a measurement, or an observation and is a measure
of closeness of agreement between an experimental result and the true value.
3.2 bias (systematic error)—an error that is consistently negative or consistently positive. The mean of errors resulting from a
series of observations which does not tend towards zero.
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 number of observations approach infinity.
3.4 combined water—water that is chemically bonded to calcium or magnesium oxide to form hydrate.
3.5 error—the difference of an observation or a group of observations from the best obtainable estimate of the true value.
3.6 free water—water that is not chemically bonded to calcium or magnesium oxide.
3.7 gross sample—a sample representing one lot of material and composed of a number of increments on which neither
reduction nor division has been performed.
3.8 increment—a small portion of the lot collected by one operation of a sampling device and normally combined with other
1
This practice is under the jurisdiction of ASTM Committee C07 on Lime and is the direct responsibility of Subcommittee C07.06 on Physical Tests.
Current edition approved Nov. 15, 2006. Published December 2006. Originally approved in 1922. Last previous edition approved in 2000 as C50–00. DOI:
10.1520/C0050-00R06.
Current edition approved July 1, 2012. Published July 2012. Originally approved in 1922. Last previous edition approved in 2006 as C50 - 00 (2006). DOI:
10.1520/C0050_C0050M-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
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.
1
---------------------- Page: 1 ----------------------
C50/C50M–12
increments from the lot to make a gross sample.
3.9 laboratory sample—refers to the sample after the initial preparation from which the analytical sample is obtained.
3.10 lot—a discrete quantity of material for which the overall quality to a particular precision needs to be determined.
3.11 precision—a term used to indicate the capability of a person, an instrument, or a method to obtain repeatable results;
spe
...
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