ASTM B873-12
(Test Method)Standard Test Method for Measuring Volume of Apparent Density Cup Used in Test Methods B212, B329, and B417
Standard Test Method for Measuring Volume of Apparent Density Cup Used in Test Methods B212, B329, and B417
SIGNIFICANCE AND USE
5.1 This test method enables the measurement of the volume of the apparent density cup to ensure that it complies with the specified volume of 25.00 ± 0.03 cm3 (cylindrical cup), or 16.39 ± 0.05 cm3 (square cup). Use of an out-of-specification cup will give erroneous apparent density values using the formulae in Test Methods B212, B329, and B417.
SCOPE
1.1 This test method covers a procedure for measuring the volume of the apparent density cups used in Test Methods B212, B329, and B417.
1.2 The apparent density cup, particularly its rim, may become worn during use, and it is recommended that the volume of the cup be checked periodically (at least every 6 months) in order to ensure that it complies with the specified volume.
1.3 With the exception of the values for density and the mass used to determine density, for which the use of the gram per cubic centimetre (g/cm3) and gram (g) units is the long standing industry practice, the values in SI units are to be regarded as 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: B873 − 12
Standard Test Method for
Measuring Volume of Apparent Density Cup Used in Test
1
Methods B 212, B 329, and B 417
This standard is issued under the fixed designation B873; 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* information is available in the Related Materials section of Vol
02.05 of the Annual Book of ASTM Standards.
1.1 This test method covers a procedure for measuring the
volume of the apparent density cups used in Test Methods
4. Summary of Test Method
B212, B329, and B417.
4.1 The apparent density cup is filled with water and
1.2 The apparent density cup, particularly its rim, may
weighed to obtain the mass of water contained, which is then
become worn during use, and it is recommended that the
converted to a volume.
volume of the cup be checked periodically (at least every 6
months) in order to ensure that it complies with the specified
5. Significance and Use
volume.
5.1 This test method enables the measurement of the vol-
1.3 With the exception of the values for density and the
ume of the apparent density cup to ensure that it complies with
mass used to determine density, for which the use of the gram
3
3
the specified volume of 25.00 6 0.03 cm (cylindrical cup), or
per cubic centimetre (g/cm ) and gram (g) units is the long
3
16.39 6 0.05 cm (square cup). Use of an out-of-specification
standing industry practice, the values in SI units are to be
cup will give erroneous apparent density values using the
regarded as standard.
formulae in Test Methods B212, B329, and B417.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
6. Apparatus
responsibility of the user of this standard to establish appro-
6.1 Density Cup—Acylindrical cup (see Fig. 1) designed to
priate safety and health practices and determine the applica-
3
haveacapacityof25.00 60.03cm (asinTestMethodsB212,
bility of regulatory limitations prior to use.
B329, and B417) or a square cup designed to have a capacity
2. Referenced Documents 3
of 16.39 6 0.05 cm (as in Test Method B329).
2
2.1 ASTM Standards:
6.2 Balance, readable to 0.0001 g with a minimum capacity
B212 Test Method for Apparent Density of Free-Flowing
of 200 g to be used for determining mass to the nearest
Metal Powders Using the Hall Flowmeter Funnel
0.001 g.
B243 Terminology of Powder Metallurgy
6.3 Microscope Slide—A transparent microscope slide at
B329 Test Method for Apparent Density of Metal Powders
least as wide as the outer diameter of the apparent density cup.
and Compounds Using the Scott Volumeter
B417 Test Method for Apparent Density of Non-Free-
6.4 Water—Distilled or deionized water boiled to remove
Flowing Metal Powders Using the Carney Funnel
dissolved air.
6.5 Alcohol—Low residue ethyl alcohol.
3. Terminology
3.1 Definitions—Definitions of powder metallurgy terms 6.6 Wire—Awire not exceeding 2.5 mm in diameter by 150
can be found in Terminology B243. Additional descriptive mm long.
6.7 Thermometer—Athermometer capable of measuring the
1
This test method is under the jurisdiction of ASTM Committee B09 on Metal
temperature of the water to the nearest 1°C.
Powders and Metal Powder Productsand is the direct responsibility of Subcommit-
tee B09.02 on Base Metal Powders.
Current edition approved Nov. 1, 2012. Published November 2012. Originally 7. Procedure
approvedin1996.Lastpreviouseditionapprovedin2007asB873 – 01(2007).DOI:
7.1 Boil at least 150 mL of distilled or deionized water for
10.1520/B0873-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5 min to remove dissolved air. Cool to room temperature and
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
handle so as to avoid the introduction of air bubbles.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 7.2 Clean the density cup with alcohol and dry thoroughly.
*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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B873 − 12
A
TABLE 1 Density of Air-Free Water
3
Temperature (°C) ρ , Density (g/cm )
w
15 0.9991
16 0.9989
17 0.9988
18 0.9986
19 0.9984
20 0.9982
21 0.9980
22 0.9978
23 0.9975
24 0.9973
25 0.9970
26 0.9968
27 0.9965
28 0.9962
29 0.9959
30 0.9956
A
Metrological Handbook 145,“ Quality Assurance for Measurements,” National
Institute of Standards and Technology, 1990, p. 9, 10.
8. Calculation
8.1 Calculate the mass
...
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: B873 − 01 (Reapproved 2007) B873 − 12
Standard Test Method for
Measuring Volume of Apparent Density Cup Used in Test
1
Methods B 212, B 329, and B 417
This standard is issued under the fixed designation B873; 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 Scope*
1.1 This test method covers a procedure for measuring the volume of the apparent density cups used in Test Methods B212,
B329, and B417.
1.2 The apparent density cup, particularly its rim, may become worn during use, and it is recommended that the volume of the
cup be checked periodically (at least every 6 months) in order to ensure that it complies with the specified volume.
1.3 With the exception of the values for density and the mass used to determine density, for which the use of the gram per cubic
3
centimetre (g/cm ) and gram (g) units is the long standing industry practice, the values in SI units are to be regarded as 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
B212 Test Method for Apparent Density of Free-Flowing Metal Powders Using the Hall Flowmeter Funnel
B243 Terminology of Powder Metallurgy
B329 Test Method for Apparent Density of Metal Powders and Compounds Using the Scott Volumeter
B417 Test Method for Apparent Density of Non-Free-Flowing Metal Powders Using the Carney Funnel
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.
4. Summary of Test Method
4.1 The apparent density cup is filled with water and weighed to obtain the mass of water contained, which is then converted
to a volume.
5. Significance and Use
5.1 This test method enables the measurement of the volume of the apparent density cup to ensure that it complies with the
3 3
specified volume of 25.00 6 0.03 cm (cylindrical cup), or 16.39 6 0.05 cm (square cup). Use of an out-of-specification cup will
give erroneous apparent density values using the formulae in Test Methods B212, B329, and B417.
6. Apparatus
3
6.1 Density Cup—A cylindrical cup (see Fig. 1) designed to have a capacity of 25.00 6 0.03 cm (as in Test Methods B212,
3
B329, and B417) or a square cup designed to have a capacity of 16.39 6 0.05 cm (as in Test Method B329).
1
This test method is under the jurisdiction of ASTM Committee B09 on Metal Powders and Metal Powder Productsand is the direct responsibility of Subcommittee B09.02
on Base Metal Powders.
Current edition approved March 15, 2007Nov. 1, 2012. Published April 2007November 2012. Originally approved in 1996. Last previous edition approved in 20012007
as B873 – 01.B873 – 01(2007). DOI: 10.1520/B0873-01R07.10.1520/B0873-12.
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
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 ----------------------
B873 − 12
FIG. 1 Cylindrical Apparent Density Cup
6.2 Balance, suitable for weighing at least readable to 0.0001 g with a minimum capacity of 200 g to be used for determining
mass to the nearest
0.001 g.
6.3 Microscope Slide—A transparent microscope slide at least as wide as the outer diameter of the apparent density cup.
6.4 Water—Distilled or deionized water boiled to remove dissolved air.
6.5 Alcohol—Low residue ethyl alcohol.
6.6 Wire—A wire not exceeding 2.5 mm in diameter by 150 mm long.
6.7 Thermometer—A thermometer capable of measuring the temperature of the water to the nearest 1°C.
7. Procedure
7.1 Boil at least 150 mL of distilled or deionized water for 5 min to remove dissolved air. Cool to room temperature and handle
so as to avoid the introduction of air bubbles.
7.2 Cle
...
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