Find the most up-to-date version of ASTM B at Engineering ASTM B Standard Test Methods for Estimating Average Particle Size of Metal Powders and Related Compounds Using Air Permeability. Clicking the links below will open a new browser window to the standard on the website. ASTM B Standard Test Method for Fisher Number of.
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Thus, the results of these methods are only estimates of average particle size. The SSA measured by this technique has been found to be a useful parameter in various industries such as pharmaceutical, metal coatings, paints, and even geological samples. There is exceptional correlation between the two sets of data. Please first verify your email before subscribing to alerts. Proceed to Checkout Continue Shopping.
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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. The values obtained are not intended to be absolute but are generally useful on a relative basis for control purposes.
Porous nickel metal produced from materials specified in 1C Standards Subsctiption may be the perfect solution.
As the voice of the U. The powders may be analyzed in their “as-supplied” shipped, received, or processed condition or after they have been de-agglomerated or milled by a laboratory procedure “lab milled” such as that specified in Practice B Add to Alert PDF. You may delete a document from your Alert Profile at any time.
ASTM Methods – Particle Size Analysis
Historical Version s – view previous versions of standard Translated Version s: One plot is based on results for inorganic mainly tungsten metal; the second on organic samples mostly pharmaceuticals. Your Alert Profile lists the documents that will be monitored. The SAS utilizes dual pressure transducers to measure pressure drop across a packed bed of powder. 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.
Methods of de-agglomeration such n330 that specified in Practice B may be used if agreed upon between the parties concerned.
Thus, the results of these methods are only estimates of average particle size. What is Air-permeability Particle Sizing?
ASTM B330 – 15
For this reason, values obtained by these test methods will be asym as an average particle size or Fisher Number. The Commission will inv ol v e society and m a ke societal im pa c t testing a n o bligatory part, where appropriate, of all its future security research projects It should not be summed up with the orange entries The translation is wrong or of bad quality. Need more than one copy?
You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. This standard is not included in any packages. The wrong words are asstm. By varying the sample height and porosity while controlling the flow rate of air through the sample, the SSA and average particle size can be determined using the Kozeny-Carman equation. atm
This is a crucial point, as the air permeability technique and the FSSS have been used as a benchmark for decades in many industries. The air-permeability technique is well established for measurement of the Specific Surface Area SSA of a sample powder.
Methods and Techniques | Particle Testing Authority
Atm standard is also available to be included in Standards Subscriptions. The values obtained are not intended to be absolute but are generally useful on a relative basis for control purposes. We have no amendments or corrections for this standard. Many applications use historical data and quality control standards, and a modern source of comparable, repeatable results is necessary.
These test methods shall not be used for mixtures of different powders, nor for powders containing binders or lubricants.