ASTM B873-96

Standard Test Method for Measuring Volume of Apparent Density Cup Used 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 B 212, B 329, and B 417.
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 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.

General Information

• Status: Historical
• Publication Date: 09-Nov-2001
• ICS: 17.060 - Measurement of volume, mass, density, viscosity
• Technical Committee: B09 - Metal Powders and Metal Powder Products
• Drafting Committee: B09.02 - Base Metal Powders

Relations

• Replaced By: ASTM B873-01 - Standard Test Method for Measuring Volume of Apparent Density Cup Used in Test Methods B212, B329, and B417
• Effective Date: 10-Nov-2001
• Referred By: ASTM B212-21 - Standard Test Method for Apparent Density of Free-Flowing Metal Powders Using the Hall Flowmeter Funnel
• Effective Date: 10-Nov-2001
• Referred By: ASTM B329-20 - Standard Test Method for Apparent Density of Metal Powders and Compounds Using the Scott Volumeter
• Effective Date: 10-Nov-2001
• Referred By: ASTM B417-22 - Standard Test Method for Apparent Density of Non-Free-Flowing Metal Powders Using the Carney Funnel
• Effective Date: 10-Nov-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 873 – 96
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Measuring Volume of Apparent Density Cup Used in Test
Methods B 212, B 329, and B 417
This standard is issued under the fixed designation B 873; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope the specified volume of 25.00 6 0.03 cm . Use of an
out-of-specification cup will give erroneous apparent density
1.1 This test method covers a procedure for measuring the
values using the formulae in Test Methods B 212, B 329, and
volume of the apparent density cup used in Test Methods
B 417.
B 212, B 329, and B 417.
1.2 The cylindrical cup, particularly its rim, may become
6. Apparatus
worn during usage, and it is recommended that the volume of
6.1 Density Cup—A cylindrical cup (see Fig. 1) designed to
the cup be checked periodically (at least every 6 months) in
have a capacity of 25.00 6 0.03 cm .
order to ensure it complies with the specified volume of 25.00
6.2 Balance, suitable for weighing at least 200 g to the
6 0.03 cm .
nearest 0.001 g.
1.3 This standard does not purport to address all of the
6.3 Microscope Slide—A transparent microscope slide at
safety concerns, if any, associated with its use. It is the
least as wide as the outer diameter of the apparent density cup.
responsibility of the user of this standard to establish appro-
6.4 Water—Distilled or deionized water boiled to remove
priate safety and health practices and determine the applica-
dissolved air.
bility of regulatory limitations prior to use.
6.5 Alcohol—Low residue ethyl alcohol.
2. Referenced Documents 6.6 Wire—A wire not exceeding 2.5 mm in diameter by 150
mm long.
2.1 ASTM Standards:
6.7 Thermometer—A thermometer capable of measuring
B 212 Test Method for Apparent Density of Free-Flowing
the temperature of the water to the nearest 1°C.
Metal Powders
B 243 Terminology of Powder Metallurgy
7. Procedure
B 329 Test Method for Apparent Density of Metal Powders
2 7.1 Boil at least 150 mL of distilled or deionized water for
and Related Compounds Using the Scott Volumeter
5 min to remove dissolved air. Cool to room temperature and
B 417 Test Method for Apparent Density of Non-Free-
2 handle so as to avoid the introduction of air bubbles.
Flowing Metal Powders
7.2 Clean the density cup with alcohol and dry thoroughly.
3. Terminology 7.3 Weigh, to the nearest 0.001 g, the density cup along with
a clean, clear microscope slide. This is the tare mass, T.
3.1 Definitions—Definitions of powder metallurgy terms
7.4 Fill the density cup with the prepared water until the
can be found in Terminology B 243. Additional descriptive
water overflows.
information is available in the Related Materials section of Vol
7.5 Dislodge any air bubbles inside the density cup with a
02.05 of the Annual Book of ASTM Standards.
clean wire.
4. Summary of Test Method 7.6 Slide the clean, clear microscope slide horizontally
across the rim of the density cup spilling the excess water over
4.1 The apparent density cup is filled with water and
the sides of the cup and center the microscope slide on top of
weighed to obtain the mass of water contained which is then
the cup.
converted to a volume.
7.7 If any air bubbles appear, remove the micr
...