ASTM B215-10
(Practice)Standard Practices for Sampling Metal Powders
Standard Practices for Sampling Metal Powders
SIGNIFICANCE AND USE
Since many tests are performed using very small amounts of powder, it is most important that the test portions be obtained in a standardized manner. The practices described here take into account the possibility of segregation of the metal powder during and after filling of containers.
SCOPE
1.1 These practices describe two procedures for obtaining samples of metal powders for subsequent testing:
1.1.1 Practice A—For powders being transferred from blenders or storage tanks.
1.1.2 Practice B—For powders already packaged in containers.
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.
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Designation: B215 − 10
StandardPractices for
1
Sampling Metal Powders
This standard is issued under the fixed designation B215; 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* 3.2.5 test sample—quantity of powder taken from the com-
posite sample for determining a single property or for prepar-
1.1 These practices describe two procedures for obtaining
ing the test pieces. It should normally be taken by splitting the
samples of metal powders for subsequent testing:
composite sample.
1.1.1 Practice A—For powders being transferred from
3.2.6 test portion—defined quantity of powder taken from
blenders or storage tanks.
the test sample on which the test is performed or from which
1.1.2 Practice B—For powders already packaged in con-
test pieces are produced.
tainers.
1.2 This standard does not purport to address all of the
4. Significance and Use
safety concerns, if any, associated with its use. It is the
4.1 Since many tests are performed using very small
responsibility of the user of this standard to establish appro-
amounts of powder, it is most important that the test portions
priate safety and health practices and determine the applica-
be obtained in a standardized manner. The practices described
bility of regulatory limitations prior to use.
here take into account the possibility of segregation of the
metal powder during and after filling of containers.
2. Referenced Documents
2
PRACTICE A
2.1 ASTM Standards:
B243 Terminology of Powder Metallurgy
FOR POWDERS BEING TRANSFERRED FROM
BLENDERS OR STORAGE TANKS
3. Terminology
5. Apparatus
3.1 Definitions—Definitions of powder metallurgy terms
can be found in Terminology B243. Additional descriptive
5.1 Rectangular Receptacle, capable of being moved com-
information is available in the Related Materials section of Vol
pletely across the stream of flowing powder at a constant speed
02.05 of the Annual Book of ASTM Standards.
and having a length and width greater than the stream of
powder. It must be large enough so that no overflow of powder
3.2 Definitions of Terms Specific to This Standard:
occurs when collecting the sample.
3.2.1 See Fig. 1.
3.2.2 composite sample—blended entire gross sample.
5.2 Small Blender.
3.2.3 increment—quantity of powder obtained by a sam-
5.3 Sample Splitter, see Fig. 2.
pling device at one time from a single lot.
5.4 Spinning Riffler, see Fig. 3.
3.2.4 gross sample—quantity of powder adequate for the
tests to be performed, consisting of all the increments taken
6. Procedure
from a single lot.
6.1 Pass the rectangular receptacle at a constant speed
completely through the stream of flowing powder. If the entire
contents of one lot of powder are being packed in a single
1 1 1 3
These practices are under the jurisdiction of ASTM Committee B09 on Metal
container, take increments when the container is ⁄4 , ⁄2 , and ⁄4
Powders and Metal Powder Productsand are the direct responsibility of Subcom-
filled.Ifseveralcontainersaretobefilledbyonelotofpowder,
mittee B09.02 on Base Metal Powders.
1
take the first increment when the first container is ⁄2 filled, the
Current edition approved Dec. 1, 2010. Published March 2011. Originally
second increment in the middle of the run, and the third
approved in 1946. Last previous edition approved in 2008 as B215 – 08. DOI:
10.1520/B0215-10.
increment near the end of the run. Additional increments may
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
be agreed upon by the parties concerned. The total amount
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
from all increments shall be adequate for the tests to be
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. performed.Combinetheincrementstoobtainthegrosssample.
*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
1
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B215 − 10
PRACTICE B
FOR POWDERS ALREADY PACKAGED IN
CONTAINERS
8. Apparatus
8.1 Keystone Sampler, see Fig. 4; or other appropriate
sampling device—see Fig. 5.
8.2 Small Blender.
8.3 Sample Splitter, see Fig. 2.
8.4 Spinning Riffler, see Fig. 3.
9. Procedure
9.1 Obtain a powder increment from the container using
either of the following devices:
9.1.1 Keystone Sampler—Insert the Keystone sampler, in
FIG. 1 Scheme of Sampling
the closed position, into the powder at a point abo
...
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:B215–08 Designation:B215–10
Standard Practices for
1
Sampling Metal Powders
This standard is issued under the fixed designation B215; 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 These practices describe two procedures for obtaining samples of metal powders for subsequent testing:
1.1.1 Practice A—For powders being transferred from blenders or storage tanks.
1.1.2 Practice B—For powders already packaged in containers.
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. Referenced Documents
2
2.1 ASTM Standards:
B243 Terminology of Powder Metallurgy
3. Terminology
3.1 Definitions —Definitions of powder metallurgy terms can be found in Terminology B243. Additional descriptive
information is available in the Related Materials section of Vol 02.05 of the Annual Book of ASTM Standards.
3.2 Description of Terms (see Fig. 1):
3.2.1 composite sample—blended entire gross sample.
3.2.2 increment—quantity of powder obtained by a sampling device at one time from a single lot.
3.2.2
3.2.3 gross sample—quantity of powder adequate for the tests to be performed, consisting of all the increments taken from a
single lot.
3.2.3composite sample—blended entire gross sample.
3.2.4 test sample—quantity of powder taken from the composite sample for determining a single property or for preparing the
test pieces. It should normally be taken by splitting the composite sample. 3.2.5test portion (test specimen)
3.2.5 test portion —defined quantity of powder taken from the test sample on which the test is performed or from which test
pieces are produced.
4. Significance and Use
4.1 Since many tests are performed using very small amounts of powder, it is most important that the test portions be obtained
in a standardized manner. The practices described here take into account the possibility of segregation of the metal powder during
and after filling of containers.
PRACTICE A
FOR POWDERS BEING TRANSFERRED FROM BLENDERS OR STORAGE TANKS
5. Apparatus
5.1 Rectangular Receptacle, capable of being moved completely across the stream of flowing powder at a constant speed and
1
These practices are under the jurisdiction of ASTM Committee B09 on Metal Powders and Metal Powder Products and are the direct responsibility of Subcommittee
B09.02 on Base Metal Powders.
Current edition approved Nov.Dec. 1, 2008.2010. Published December 2008.March 2011. Originally approved in 1946. Last previous edition approved in 20042008 as
B215 – 048. DOI: 10.1520/B0215-108.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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.
1
---------------------- Page: 1 ----------------------
B215–10
FIG. 1 Scheme of Sampling
having a length and width greater than the stream of powder. It must be large enough so that no overflow of powder occurs when
collecting the sample.
5.2 Small Blender.
5.3 Sample Splitter, see Fig. 2.
5.4 Spinning Riffler, see Fig. 3.
6. Procedure
6.1 Pass the rectangular receptacle at a constant speed completely through the stream of flowing powder. If the entire contents
1 1 3
of one lot of powder are being packed in a single container, take increments when the container is ⁄4 , ⁄2 , and ⁄4 filled. If several
1
containers are to be filled by one lot of powder, take the first increment when the first container is ⁄2 filled, the second increment
in the middle of the run, and the third increment near the end of the run.Additional increments may be agreed upon by the parties
concerned.The total amount from all increments shall be adequate for the tests to be performed. Combine the increments to obtain
the gross sample.
NOTE 1—To investigate within-lot variability, individual i
...
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