ASTM B329-06(2012)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: B329 − 06(Reapproved 2012)
Standard Test Method for
Apparent Density of Metal Powders and Compounds Using
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 The values stated in SI units are to be regarded as the
5. Apparatus
standard. The values given in parentheses are for information
5.1 Fig. 1 shows the Scott Volumeter consisting of the
only.
following parts:
1.3 This standard does not purport to address all of the
5.1.1 Top Funnels— A large funnel with a 16-mesh screen
safety concerns, if any, associated with its use. It is the
and a small conical funnel for directing the powder into the
responsibility of the user of this standard to establish appro-
baffle box. Funnels and screen may be brass or stainless steel.
priate safety and health practices and determine the applica-
5.1.2 Baffle Box—A box with two glass sides and two
bility of regulatory limitations prior to use.
wooden sides containing a series of four glass baffle plates.
The wooden baffle box may be substituted by a water-
2. Referenced Documents
resistant material, such as stainless steel, if washing is more
desirable than air cleaning.
2.1 ASTM Standards:
B215 Practices for Sampling Metal Powders 5.1.3 Bottom Funnel— A small brass or stainless steel
B243 Terminology of Powder Metallurgy funnel directly beneath lower baffle box opening for directing
B873 Test Method for Measuring Volume of Apparent Den- the powder into the density cup.
sity Cup Used in Test Methods B 212, B 329, and B 417 5.1.4 Density Cups—Acylindrical cup having a capacity of
25.00 6 0.03 cm , with an inside diameter of 28.00 6 0.50
3. Terminology mm; or a square cup with a capacity of 16.39 6 0.05 cm
(1.000 6 0.003 in. ). Density cups may be either brass or
3.1 Definitions—For definitions of terms used in this test
stainless steel.
method see Terminology B243.
5.1.5 Stand—A90° pivoting wooden or stainless steel stand
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
4.1 This test method covers the evaluation of the apparent 3
( ⁄4 in.) above the top of the density cup as shown in Fig. 1
density physical characteristic of powders. The degree of
when using the cubic inch cup. Fig. 2 shows some suggested
correlation between the results of this test and the quality of
modifications for use of the metric cup. ModificationsAand C
of Fig. 2 are suggested when the metric cup is to be used
exclusively. Modification B of Fig. 2 is suggested when both
This test method is under the jurisdiction of ASTM Committee B09 on Metal cups are to be used interchangeably.
Powders and Metal Powder Productsand is the direct responsibility of Subcommit-
5.2 Instrument Support—Astandorbenchsurface,leveland
tee B09.03 on Refractory Metal Powders.
Current edition approved Oct. 1, 2012. Published October 2012. Originally vibration free.
approved in 1958. Last previous edition approved in 2006 as B329 – 98 (2006).
5.3 Balance—A balance having a capacity of at least 200 g
DOI: 10.1520/B0329-06R12.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or and an accuracy of 60.05 g with full-range taring capability.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.4 Brush—A good quality, 25.4-mm (1-in.) wide brush,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. preferably nylon.
*A Summary of Changes section appears at the end of this standard
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B329 − 06 (2012)
FIG. 1 Density Apparatus Assembly
FIG. 2 Suggested Methods of Modifying the Wooden Scott Volumeter for Metric Density Cup
5.5 Spatula—A standard 12.7-mm ( ⁄2-in.) wide stainless 7. Calibration and Standardization
steel l
...