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ASTM B822-20

(Test Method)

Standard Test Method for Particle Size Distribution of Metal Powders and Related Compounds by Light Scattering

Standard Test Method for Particle Size Distribution of Metal Powders and Related Compounds by Light Scattering

SIGNIFICANCE AND USE
5.1 Reported particle size measurement is a function of both the actual particle dimension and shape factor as well as the particular physical or chemical properties being measured. Caution is required when comparing data from instruments operating on different physical or chemical parameters or with different particle size measurement ranges. Sample acquisition, handling, and preparation can also affect reported particle size results.  
5.1.1 It is important to recognize that the results obtained by this test method, or any other method for particle size determination using different physical principles, may disagree. The results are strongly influenced by the physical principles employed by each method of particle size analysis. The results of any particle sizing method should be used only in a relative sense; they should not be regarded as absolute when comparing results obtained by other methods.  
5.2 Light scattering theory has been available for many years for use in the determination of particle size. Several manufacturers of testing equipment now have units based on these principles. Although each type of testing equipment uses the same basic principles for light scattering as a function of particle size, different assumptions pertinent to application of the theory, and different models for converting light measurements to particle size, may lead to different results for each instrument. Therefore, the use of this test method cannot guarantee directly comparable results from different types of instruments.  
5.3 Knowledge of the particle size distribution of metal powders is useful in predicting the powder-processing behavior and ultimate performance of powder metallurgy parts. Particle size distribution is related closely to the flowability, moldability, compressibility, and die-filling characteristics of a powder, as well as to the final structure and properties of finished powder metallurgy (P/M) parts.  
5.4 This test method is useful to both suppli...
SCOPE
1.1 This test method covers the determination of the particle size distribution by light scattering, reported as volume percent, of particulate materials including metals and compounds.  
1.2 This test method applies to analyses with both aqueous and nonaqueous dispersions. In addition, analysis can be performed with a gaseous dispersion for materials that are hygroscopic or react with a liquid carrier.  
1.3 This test method is applicable to the measurement of particulate materials in the range of 0.4 to 2000 μm, or a subset of that range, as applicable to the particle size distribution being measured.  
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This 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.

General Information

Status
Published
Publication Date
30-Sep-2020
ICS
13.300 - Protection against dangerous goods
Technical Committee
B09 - Metal Powders and Metal Powder Products
Drafting Committee
B09.02 - Base Metal Powders
Current Stage
Ref Project

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ASTM B822-20 - Standard Test Method for Particle Size Distribution of Metal Powders and Related Compounds by Light ScatteringASTM B822-20 - Standard Test Method for Particle Size Distribution of Metal Powders and Related Compounds by Light Scattering
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Standards Content (Sample)

This 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.
Designation: B822 − 20
Standard Test Method for
Particle Size Distribution of Metal Powders and Related
1
Compounds by Light Scattering
This standard is issued under the fixed designation B822; 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.
1. Scope* B243 Terminology of Powder Metallurgy
B821 Guide for Liquid Dispersion of Metal Powders and
1.1 Thistestmethodcoversthedeterminationoftheparticle
Related Compounds for Particle Size Analysis
size distribution by light scattering, reported as volume
E177 Practice for Use of the Terms Precision and Bias in
percent, of particulate materials including metals and com-
ASTM Test Methods
pounds.
E691 Practice for Conducting an Interlaboratory Study to
1.2 This test method applies to analyses with both aqueous
Determine the Precision of a Test Method
and nonaqueous dispersions. In addition, analysis can be
E1617 Practice for Reporting Particle Size Characterization
performed with a gaseous dispersion for materials that are
Data
3
hygroscopic or react with a liquid carrier.
2.2 ISO Standard:
1.3 This test method is applicable to the measurement of ISO13320-1 Particle Size Analysis—Laser Diffraction
Methods—Part 1: General Principles
particulate materials in the range of 0.4 to 2000 µm, or a subset
of that range, as applicable to the particle size distribution
3. Terminology
being measured.
3.1 Definitions—Definitions of powder metallurgy terms
1.4 Units—The values stated in SI units are to be regarded
can be found in Terminology B243.
as standard. No other units of measurement are included in this
3.2 Definitions of Terms Specific to This Standard:
standard.
3.2.1 background, n—extraneous scattering of light by ele-
1.5 This standard does not purport to address all of the
ments other than the particles to be measured; includes
safety concerns, if any, associated with its use. It is the
scattering by contamination in the measurement path.
responsibility of the user of this standard to establish appro-
3.2.2 Fraunhofer Diffraction, n—the optical theory that
priate safety, health, and environmental practices and deter-
describes the low-angle scattering of light by particles that are
mine the applicability of regulatory limitations prior to use.
4
large compared to the wavelength of the incident light.
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard- 3.2.3 Mie Scattering, n—the complex electromagnetic
theory that describes the scattering of light by spherical
ization established in the Decision on Principles for the
particles.
Development of International Standards, Guides and Recom-
3.2.3.1 Discussion—It is usually applied to particles with
mendations issued by the World Trade Organization Technical
diameters that are close to the wavelength of the incident light.
Barriers to Trade (TBT) Committee.
The real and imaginary indices of light refraction of the
4
2. Referenced Documents particles are needed.
2
3.2.4 multiple scattering, n—the rescattering of light by a
2.1 ASTM Standards:
particle in the path of light scattered by another particle.
B215 Practices for Sampling Metal Powders
3.2.4.1 Discussion—This usually occurs in heavy concen-
trations of a particle dispersion.
1
This test method is under the jurisdiction of ASTM Committee B09 on Metal
4. Summary of Test Method
Powders and Metal Powder Products and is the direct responsibility of Subcom-
mittee B09.02 on Base Metal Powders.
4.1 Aprepared sample of particulate material is dispersed in
Current edition approved Oct. 1, 2020. Published October 2020. Originally
water, or a compatible organic liquid, and circulated through
approved in 1992. Last previous edition approved in 2017 as B822 – 17. DOI:
10.1520/B0822-20.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036, http://www.ansi.org.
4
Standards volume information, refer to the standard’s Document Summary page on Muly, E. C., Frock, H. N., “Industrial Particle Size Measurement Using Light
the ASTM website. Scattering,” Optical Engineering, Vol 19, No. 6, 1980, pp. 861–869.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B822 − 17 B822 − 20
Standard Test Method for
Particle Size Distribution of Metal Powders and Related
1
Compounds by Light Scattering
This standard is issued under the fixed designation B822; 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.
1. Scope*
1.1 This test method covers the determination of the particle size distribution by light scattering, reported as volume percent, of
particulate materials including metals and compounds.
1.2 This test method applies to analyses with both aqueous and nonaqueous dispersions. In addition, analysis can be performed
with a gaseous dispersion for materials that are hygroscopic or react with a liquid carrier.
1.3 This test method is applicable to the measurement of particulate materials in the range of 0.4 to 2000 μm, or a subset of that
range, as applicable to the particle size distribution being measured.
1.4 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this
standard.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 This 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.
2. Referenced Documents
2
2.1 ASTM Standards:
B215 Practices for Sampling Metal Powders
B243 Terminology of Powder Metallurgy
B821 Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1617 Practice for Reporting Particle Size Characterization Data
3
2.2 ISO Standard:
ISO13320-1 Particle Size Analysis—Laser Diffraction Methods—Part 1: General Principles
1
This test method is under the jurisdiction of ASTM Committee B09 on Metal Powders and Metal Powder Products and is the direct responsibility of Subcommittee B09.02
on Base Metal Powders.
Current edition approved April 1, 2017Oct. 1, 2020. Published April 2017October 2020. Originally published asapproved in B822 – 92.1992. Last previous edition
approved in 20102017 as B822 –10. – 17. DOI: 10.1520/B0822-17.10.1520/B0822-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B822 − 20
3. Terminology
3.1 Definitions—Definitions of powder metallurgy terms can be found in Terminology B243.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 background—background, n—extraneous scattering of light by elements other than the particles to be measured; includes
scattering by contamination in the measurement path.
3.2.2 Fraunhofer Diffraction—Diffraction, n—the optical theory that describes the low-angle scattering of light by particles that
4
are large compared to the wavelength of the incident light.
3.2.3 Mie Scattering—Scattering, n—the complex electromagnetic theory that describes the scattering of light by spherical
particles. It is usually applied to particles with diameters that are close to the wavelength of the incident light. The real and
imaginary indices of light refraction of the particles are needed.
3.2.3.1 Discussion—
It is usually applied to particles with diameters that are close to the wavelength of the incident light. The real and imaginary indices
4
of light refraction of the particl
...

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Section  
Section  
Scope  
1  
Referenced Documents  
2  
Terminology  
3  
Definitions  
3.1  
Definitions of Terms Specific to This Standard  
3.2  
Symbols  
3.3  
Summary of Test Method  
4  
Significance and Use  
5  
Interferences  
6  
Apparatus  
7  
Sampling  
8  
Test Specimens  
9  
Specimen Preparation  
10  
Calibration  
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Semiautomatic Digitizing Tablet  
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12.6.1  
Two-Phase Grain Structures  
12.7  
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Examples of Proper and Improper Grain Boundary Delineation  
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Standard Guide for Surveys to Document and Assess Oiling Conditions

SIGNIFICANCE AND USE
3.1 Systematic surveys provide data on shoreline, lakeshore, river bank or other terrain’s character and oiling conditions from which informed planning and operational decisions can be developed with respect to cleanup (1-4).3 In particular, the data are used by decision makers to determine which oiled areas require treatment and to develop end-point criteria for use as targets for the field operations.  
3.2 Surveys may include one or more of four components or phases, as listed below. The scale of an affected area plus quantity and availability of pre-spill information will influence the selection of survey components and its level of detail.  
3.2.1 The aerial reconnaissance survey phase provides a perspective on the overall extent and general nature of the oiling conditions. This information is used in conjunction with environmental, resource, and cultural sensitivity data to guide shoreline protection, recovery of mobile oil, and to facilitate the more detailed response planning and priorities of the response operations.  
3.2.2 The aerial video survey(s) phase provides systematic audio and video documentation of the extent and type of oiling conditions, physical character, and logistics information, such as access and staging data.  
3.2.3 The ground assessment survey(s) phase provides the necessary information and data to develop appropriate response recommendations. A field team(s) collects detailed information on oil conditions, the physical and ecological character of oiled areas, and resources or cultural features that may affect or be affected by the timing or implementation of response activities.  
3.2.4 The post-treatment inspection ground survey or monitoring phase provides the necessary information and data to ensure a segment, that is part of the response program, has been treated to the approved end-point criterion. (5)  
3.3 In order to ensure data consistency, it is important to use standardized terminology and definitions in describing oi...
SCOPE
1.1 This guide covers field procedures by which data can be collected in a systematic manner to document and assess the oiling conditions on shorelines, river banks, and lake shores (shores and substrates) plus dry land habitats (terrain).  
1.2 This guide does not address the terminology that is used to define and describe terrain oiling conditions, the ecological character of oiled terrain, or the cultural or other resources that can be present.  
1.3 The guide is applicable to marine coasts (including estuaries) and to freshwater environments (rivers and lakes) and to dry land habitats. In alignment with Guide F2204:  
1.3.1 For the purpose of this guide, marine and estuarine shorelines, river banks, and lake shores will be collectively referred to as shorelines, shores, or shore-zones.  
1.3.2 Shore types include a range of impermeable (bedrock, ice, and manmade structures), permeable (flats, beaches, and manmade), and coastal wetland (marshes, mangroves) habitats.  
1.4 Other non-shoreline, inland habitats include wetlands (pond, fen, bog, swamp, tundra, and shrub) and drier terrains (grassland, desert, forests), and will be collectively referred to as either wetlands or terrains, respectively.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This 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 Barr...

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ASTM
ASTM E2664-22(Practice)
Standard Practice for Methanol Wall Wash of Marine Vessels Handling Polyester Grade Monoethylene Glycol

SIGNIFICANCE AND USE
4.1 The methanol wall wash practice is performed to determine the cleanliness and suitability of cargo tanks or compartments on a marine vessel prior to loading polyester grade monoethylene glycol. Polyester grade monoethylene glycol has very high quality requirements and must be handled with care, as it is adversely affected by oxygen, hydrocarbons, water, and chloride. It is especially susceptible to aromatic contamination, which degrades UV transmittance. Possible sources of contamination are the prior cargoes and cleaning agents. The methanol wall wash procedure provides a representative sampling of the impurities and contamination present on the sides of the cargo tank.
SCOPE
1.1 This practice covers the methanol wall wash procedure for cargo tanks of marine vessels handling polyester grade monoethylene glycol.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7.  
1.3 This 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.

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ASTM
ASTM F1127-22(Guide)
Standard Guide for Containment of Hazardous Material Spills by Emergency Response Personnel

SIGNIFICANCE AND USE
4.1 This guide contains information regarding the containment of a hazardous material that has escaped from its container. If a material can be contained, the impact on the environment and the threat it poses to responders and the general public is usually reduced. The techniques described in this guide are among those that may be used by emergency responders to lessen the impact of a discharge. Initial hazard assessment should be performed before applying mitigation techniques.  
4.2 Emergency responders might include police, fire service personnel, government spill response personnel, industrial response personnel, or spill response contractors. In order to apply any of the techniques described in this guide, appropriate training is recommended. See OSHA Hazardous Waste and Emergency Response Standard (HAZWOPER) requirements.
SCOPE
1.1 This guide describes methods to contain the spread of hazardous materials that have been discharged into the environment. It is directed toward those emergency response personnel who have had adequate hazardous material response training.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This 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.

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ASTM
ASTM E2230-22(Practice)
Standard Practice for Thermal Qualification of Type B Packages for Radioactive Material

SIGNIFICANCE AND USE
5.1 The major objective of this practice is to provide a common reference document for both applicants and certification authorities on the accepted practices for accomplishing package thermal qualification. Details and methods for accomplishing qualification are described in this document in more specific detail than available in the regulations. Methods that have been shown by experience to lead to successful qualification are emphasized. Possible problems and pitfalls that lead to unsatisfactory results are also described.  
5.2 The work described in this standard practice shall be done under a quality assurance program that is accepted by the regulatory authority that certifies the package for use. For packages certified in the United States, 10 CFR 71 Subpart H shall be used as the basis for the quality assurance (QA) program, while for international certification, ISO 9000 usually defines the appropriate program. The quality assurance program shall be in place and functioning prior to the initiation of any physical or analytical testing activities and prior to submittal of any information to the certifying authority.
SCOPE
1.1 This practice defines detailed methods for thermal qualification of “Type B” radioactive materials packages under Title 10, Code of Federal Regulations, Part 71 (10CFR71) in the United States or, under International Atomic Energy Agency Regulation SSR-6. Under these regulations, packages transporting what are designated to be Type B quantities of radioactive material shall be demonstrated to be capable of withstanding a sequence of hypothetical accidents without significant release of contents.  
1.2 The unit system (SI metric or English) used for thermal qualification shall be agreed upon prior to submission of information to the certification authority. If SI units are to be standard, then use IEEE/ASTM SI-10. Additional units given in parentheses are for information purposes only.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.  
1.5 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.  
1.6 This 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.

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ASTM
ASTM F1011-22(Guide)
Standard Guide for Developing a Hazardous Materials Training Curriculum for Initial Response Personnel

SIGNIFICANCE AND USE
4.1 This guide summarizes the typical contents of a course to aid emergency response team training organizations in selecting important subjects for inclusion in existing or new training programs.
SCOPE
1.1 This guide covers a format for a hazardous materials spill initial response team training curriculum. This guide is designed to assist trainers of initial response personnel in assessing the content of training curriculum by providing guidelines for subject content against which these curricula may be evaluated. The guide should be tailored by the trainer to fit specific circumstances that are present in the community or industry where a spill may occur.  
1.2 Sections 5, 6, 7, 8, and 9 of this guide identify those training areas that should be considered in a curriculum. The area of preplanning is listed and this topic should be seriously considered by the user. Training is only a small part of an overall spill response contingency plan. A properly equipped and trained spill response team cannot operate without a previously agreed plan of attack.  
1.3 Currently the U.S. Code of Federal Regulation 29 CFR 1910.120, 40 CFR 112 Subpart B, 40 CFR 264 Subpart D, 40 CFR 265 Subpart D, and 49 CFR 172 Subpart H specify that producers, handlers, and shippers of hazardous materials shall plan and train for hazardous spill response. Additional training may be required for shipments by vessel (49 CFR 176.13) and highway (49 CFR 177.800). Regardless of the above regulatory requirements, training is essential to a proper response in an emergency.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This 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.

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