• There are no items in your cart

ASTM B 821 : 2022

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis

Available format(s)

Hardcopy , PDF

Superseded date

27-02-2023

Superseded by

ASTM B 821 : 2023

Language(s)

English

Published date

02-12-2022

€59.22
Excluding VAT

Committee
B 09
DocumentType
Guide
Pages
4
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

1.1This guide covers the dispersion in liquids of metal powders and related compounds for subsequent use in particle size analysis instruments. This guide describes a general procedure for achieving and determining dispersion; it also lists procedures that have been found useful for certain materials.

1.2This guide does not include specific procedures for dry dispersion of particulate materials. It only indicates when liquid dispersion is not appropriate and dry dispersion must be utilized (see 7.1.2.1). For guidance on development of methods of dry dispersion, see Guide E3340.

1.3This guide is limited to metal powders and related metal compounds. However, the general procedure described herein may be used, with caution as to its significance, for other particulate materials, such as ceramics, pigments, minerals, etc.

1.4Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM E 2651 : 2019 Standard Guide for Powder Particle Size Analysis
ASTM B 822 : 2020 Standard Test Method for Particle Size Distribution of Metal Powders and Related Compounds by Light Scattering
ASTM B 859 : 2021 Standard Practice for De-Agglomeration of Refractory Metal Powders and Their Compounds Prior to Particle Size Analysis
ASTM B 761 : 2017 : R2021 Standard Test Method for Particle Size Distribution of Metal Powders and Related Compounds by X-Ray Monitoring of Gravity Sedimentation
ASTM E 3338 : 2022 Standard Guide for Size and Shape of Solid Particles, Liquid Droplets, and Gas Bubbles, Dynamically Conveyed, Using a Dynamic Imaging Analyzer
ASTM E 3340 : 2022 Standard Guide for Development of Laser Diffraction Particle Size Analysis Methods for Powder Materials
ASTM F 3560 : 2022 Standard Specification for Additive Manufacturing – Data – Common Exchange Format for Particle Size Analysis by Light Scattering

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.