ASTM B215-04

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. PRACTICE A  Top  FOR POWDERS BEING TRANSFERRED FROM BLENDERS OR STORAGE TANKS  Top
SCOPE
1.1 These practices describe two procedures for obtaining samples of metal powders for subsequent testing:
1.1.1 Practice AFor powders being transferred from blenders or storage tanks.
1.1.2 Practice BFor 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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2004
• ICS: 77.160 - Powder metallurgy
• Technical Committee: B09 - Metal Powders and Metal Powder Products
• Drafting Committee: B09.02 - Base Metal Powders

Relations

• Replaces: ASTM B215-96 - Standard Practices for Sampling Finished Lots of Metal Powders
• Effective Date: 01-Oct-2004
• Replaced By: ASTM B215-08 - Standard Practices for Sampling Metal Powders
• Effective Date: 01-Nov-2008
• Referred By: ASTM E159-22 - Standard Test Method for Loss of Mass in a Reducing Gas Atmosphere for Cobalt, Copper, Tungsten, and Iron Powders (Hydrogen Loss)
• Effective Date: 01-Oct-2004
• Referred By: ASTM F3456-22 - Standard Guide for Powder Reuse Schema in Powder Bed Fusion Processes for Medical Applications for Additive Manufacturing Feedstock Materials
• Effective Date: 01-Oct-2004
• Referred By: ASTM B329-20 - Standard Test Method for Apparent Density of Metal Powders and Compounds Using the Scott Volumeter
• Effective Date: 01-Oct-2004
• Referred By: ASTM B923-22 - Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry
• Effective Date: 01-Oct-2004
• Referred By: ASTM B703-21 - Standard Test Method for Apparent Density of Metal Powders and Related Compounds Using the Arnold Meter
• Effective Date: 01-Oct-2004
• Referred By: ASTM B925-15(2022) - Standard Practices for Production and Preparation of Powder Metallurgy (PM) Test Specimens
• Effective Date: 01-Oct-2004
• Referred By: ASTM F1580-18 - Standard Specification for Titanium and Titanium-6 Aluminum-4 Vanadium Alloy Powders for Coatings of Surgical Implants
• Effective Date: 01-Oct-2004
• Referred By: ASTM F3606-22 - Standard Guide for Additive Manufacturing — Feedstock Materials — Testing Moisture Content in Powder Feedstock
• Effective Date: 01-Oct-2004
• Referred By: ASTM E3338-22 - Standard Guide for Size and Shape of Solid Particles, Liquid Droplets, and Gas Bubbles, Dynamically Conveyed, Using a Dynamic Imaging Analyzer
• Effective Date: 01-Oct-2004
• Referred By: ASTM E2651-19 - Standard Guide for Powder Particle Size Analysis
• Effective Date: 01-Oct-2004
• Referred By: ASTM B527-23 - Standard Test Method for Tap Density of Metal Powders and Compounds
• Effective Date: 01-Oct-2004
• Referred By: ASTM B821-23 - Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis
• Effective Date: 01-Oct-2004
• Referred By: ASTM B331-20 - Standard Test Method for Compressibility of Metal Powders in Uniaxial Compaction
• Effective Date: 01-Oct-2004

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B215–04
Standard Practices for
1
Sampling Metal Powders
This standard is issued under the fixed designation B 215; 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.
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 con-
tainers.
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 appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
2
B 243 Terminology of Powder Metallurgy
3. Terminology
3.1 Definitions —Definitions of powder metallurgy terms
can be found in Terminology B 243. Additional descriptive
FIG. 1 Scheme of Sampling
information is available in the Related Materials section of Vol
02.05 of the Annual Book of ASTM Standards.
3.2.4 lot—definite quantity of powder processed or pro-
3.2 Description of Terms (see Fig. 1):
duced under uniform conditions.
3.2.1 composite sample—blended entire gross sample.
3.2.5 test portion (test specimen)—defined quantity of pow-
3.2.2 gross sample—quantity of powder adequate for the
der drawn from the test sample on which the test is performed
tests to be performed, consisting of all the increments taken
or from which test pieces are produced.
from a single lot.
3.2.6 test sample—quantity of powder taken from the com-
3.2.3 increment—quantity of powder obtained by a sam-
posite sample for determining a single property or for prepar-
pling device at one time from a single lot.
ing the test pieces. It should normally be taken by splitting the
composite sample.
1
These practices are under the jurisdiction of ASTM Committee B09 on Metal
Powder and Metal Powder Products and are the direct responsibility of Subcom-
4. Significance and Use
mittee B09.02 on Base Metal Powders.
4.1 Since many tests are performed using very small
Current edition approved Oct. 1, 2004. Published October 2004. Originally
approved in 1946. Last previous edition approved in 1996 as B 215 – 96.
amounts of powder, it is most important that the test portions
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
be obtained in a standardized manner. The practices described
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
here take into account the possibility of segregation of the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. metal powder during and after filling of containers.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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B215–04
PRACTICE A 7. Frequency of Increments
7.1 Take at least three increments for each lot of powder.
FOR POWDERS BEING TRANSFERRED FROM
The actual number depends on the size of the lot and the
BLENDERS OR STORAGE TANKS
powder involved and shall be agreed upon by the parties
involved.
5. Apparatus
5.1 Rectangular Receptacle, capable of being moved com- PRACTICE B
pletely across the stream of flowing powder at a constant speed
FOR POWDERS ALREADY PACKAGED IN
and having a length and width greater than the stream of
CONTAINERS
powder. It must be large enough so that no overflow of powder
occurs when collecting the sample.
8. Apparatus
5.2 Small Blender.
8.1 Keystone Sampler, see Fig. 4.
5.3 Sample Splitter, see Fig. 2.
8.2 Small Blender.
5.4 Spinning Riffler, see Fig. 3.
8.3 Sample Splitter, see Fig. 2.
5.5 Micro-sample Splitter.
8.4 Spinning Riffler, see Fig. 3.
5.6 Micro-sample Spinning Riffler.
8.5 Micro-sample Splitter.
8.6 Micro-sample Spinning Riffler.
6. Procedure
9. Procedure
6.1 Pass the rectangular receptacle at a constant speed
9.1 Insert the Keystone sampler in the closed position into
completely through the stream of flowing powder. If the entire
the powder at a point 70 % of the distance from the center of
contents of one lot of powder are being packed in a single
1 1 3
the cross section to the periphery and straight down to the
container, take increments when the container is ⁄4 , ⁄2 , and ⁄4
bottom of the container. Then twist the sampler to the open
filled.Ifseveralcontainersaretobefilledbyonelotofpowder,
1
position allowing powder to flow into
...