ASTM B329-14
(Test Method)Standard Test Method for Apparent Density of Metal Powders and Compounds Using the Scott Volumeter
Standard Test Method for<brk type="line"/> Apparent Density of Metal Powders and Compounds Using the Scott Volumeter
SIGNIFICANCE AND USE
4.1 This test method covers the evaluation of the apparent density physical characteristic of powders. The degree of correlation between the results of this test and the quality of powders in use will vary with each particular application and has not been fully determined.
4.2 The apparent density measured via this test method is often referred to as the “Scott Density.”
SCOPE
1.1 This test method covers determination of the apparent density of metal powders and related compounds using the Scott Volumeter, also known as the Paint Pigment Volumeter.
1.2 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 longstanding industry practice, the values stated in SI units are to be regarded as the standard.
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: B329 − 14
Standard Test Method for
Apparent Density of Metal Powders and Compounds Using
1
the Scott Volumeter
This standard is issued under the fixed designation B329; 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* powders in use will vary with each particular application and
has not been fully determined.
1.1 This test method covers determination of the apparent
density of metal powders and related compounds using the
4.2 The apparent density measured via this test method is
Scott Volumeter, also known as the Paint Pigment Volumeter.
often referred to as the “Scott Density.”
1.2 With the exception of the values for density and the
5. Apparatus
mass used to determine density, for which the use of the gram
3
per cubic centimetre (g/cm ) and gram (g) units is the long-
5.1 Fig. 1 shows the Scott Volumeter consisting of the
standingindustrypractice,thevaluesstatedinSIunitsaretobe
following parts:
regarded as the standard.
5.1.1 Top Funnels— A large funnel with a 16-mesh screen
1.3 This standard does not purport to address all of the and a small conical funnel for directing the powder into the
safety concerns, if any, associated with its use. It is the baffle box. Funnels and screen may be brass or stainless steel.
responsibility of the user of this standard to establish appro-
5.1.2 Baffle Box—A box with two glass sides and two
priate safety and health practices and determine the applica-
wooden sides containing a series of four glass baffle plates.
bility of regulatory limitations prior to use.
The wooden baffle box may be substituted by a water-
resistant material, such as stainless steel, if washing is more
2. Referenced Documents
desirable than air cleaning.
2
2.1 ASTM Standards: 5.1.3 Bottom Funnel— A small brass or stainless steel
B215 Practices for Sampling Metal Powders funnel directly beneath lower baffle box opening for directing
B243 Terminology of Powder Metallurgy the powder into the density cup.
B873 Test Method for Measuring Volume of Apparent Den-
5.1.4 Density Cups—Acylindrical cup having a capacity of
3
sity Cup Used in Test Methods B 212, B 329, and B 417
25.00 6 0.03 cm , with an inside diameter of
28.00 6 0.50 mm; or a square cup with a capacity of
3
3. Terminology
16.39 6 0.05 cm . Density cups may be either brass or
stainless steel.
3.1 Definitions—For definitions of terms used in this test
5.1.5 Stand—A90° pivoting wooden or stainless steel stand
method see Terminology B243.
to support the funnels and the baffle box concentric with the
4. Significance and Use
density cup so that the bottom funnel lower opening is 19 mm
above the top of the density cup as shown in Fig. 1 when using
4.1 This test method covers the evaluation of the apparent
the cubic inch cup. Fig. 2 shows some suggested modifications
density physical characteristic of powders. The degree of
for use of the metric cup. Modifications A and C of Fig. 2 are
correlation between the results of this test and the quality of
suggested when the metric cup is to be used exclusively.
Modification B of Fig. 2 is suggested when both cups are to be
1 used interchangeably.
This test method is under the jurisdiction of ASTM Committee B09 on Metal
Powders and Metal Powder Products and is the direct responsibility of Subcom-
5.2 Instrument Support—Astandorbenchsurface,leveland
mittee B09.03 on Refractory Metal Powders.
vibration free.
Current edition approved Dec. 1, 2014. Published January 2015. Originally
approved in 1958. Last previous edition approved in 2012 as B329 – 98 (2012).
5.3 Balance—A balance, readable to 0.01 g with a capacity
DOI: 10.1520/B0329-14.
2
of at least 200 g, to determine the mass to the nearest 0.1 g.
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
5.4 Brush—Agood quality, 25.4-mm wide brush, preferably
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. nylon.
*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 ----------------------
B329 − 14
FIG. 1 Density Apparatus Assembly
FIG. 2 Suggested Methods of Modifying the Wooden Scott Volumeter for Metric Density Cup
5.5 Spatula—Astandard 12.7-mm wide stainless steel labo- 7. Calibration and Standardization
ratory spatula.
7.1 The density cups shall
...
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: B329 − 14 B329 − 14
Standard Test Method for
Apparent Density of Metal Powders and Compounds Using
1
the Scott Volumeter
This standard is issued under the fixed designation B329; 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*
1.1 This test method covers determination of the apparent density of metal powders and related compounds using the Scott
Volumeter, also known as the Paint Pigment Volumeter.
1.2 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 longstanding industry practice, the values stated in SI units are to be regarded as the
standard.
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:
B215 Practices for Sampling Metal Powders
B243 Terminology of Powder Metallurgy
B873 Test Method for Measuring Volume of Apparent Density Cup Used in Test Methods B 212, B 329, and B 417
3. Terminology
3.1 Definitions—For definitions of terms used in this test method see Terminology B243.
4. Significance and Use
4.1 This test method covers the evaluation of the apparent density physical characteristic of powders. The degree of correlation
between the results of this test and the quality of powders in use will vary with each particular application and has not been fully
determined.
4.2 The apparent density measured via this test method is often referred to as the “Scott Density.”
5. Apparatus
5.1 Fig. 1 shows the Scott Volumeter consisting of the following parts:
5.1.1 Top Funnels— A large funnel with a 16-mesh screen and a small conical funnel for directing the powder into the baffle
box. Funnels and screen may be brass or stainless steel.
5.1.2 Baffle Box—A box with two glass sides and two wooden sides containing a series of four glass baffle plates.
The wooden baffle box may be substituted by a water-resistant material, such as stainless steel, if washing is more desirable than
air cleaning.
1
This test method is under the jurisdiction of ASTM Committee B09 on Metal Powders and Metal Powder Products and is the direct responsibility of Subcommittee B09.03
on Refractory Metal Powders.
Current edition approved Dec. 1, 2014. Published January 2015. Originally approved in 1958. Last previous edition approved in 2012 as B329 – 98 (2012). DOI:
10.1520/B0329-14.
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 ----------------------
B329 − 14
FIG. 1 Density Apparatus Assembly
5.1.3 Bottom Funnel— A small brass or stainless steel funnel directly beneath lower baffle box opening for directing the powder
into the density cup.
3
5.1.4 Density Cups— A cylindrical cup having a capacity of 25.00 6 0.03 cm , with an inside diameter of 28.00 6 0.50 mm;
3
or a square cup with a capacity of 16.39 6 0.05 cm . Density cups may be either brass or stainless steel.
5.1.5 Stand—A 90° pivoting wooden or stainless steel stand to support the funnels and the baffle box concentric with the density
cup so that the bottom funnel lower opening is 19 mm above the top of the density cup as shown in Fig. 1 when using the cubic
inch cup. Fig. 2 shows some suggested modifications for use of the metric cup. Modifications A and C of Fig. 2 are suggested when
the metric cup is to be used exclusively. Modification B of Fig. 2 is suggested when both cups are to be used interchangeably.
FIG. 2 Suggested Methods of Modifying the Wooden Scott Volumeter for Metric Density Cup
2
---------------------- Page: 2 ----------------------
B329 − 14
5.2 Instrument Support—A s
...
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