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ASTM E726-01(2011)e1

(Test Method)

Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides

Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides

SIGNIFICANCE AND USE
This procedure was designed principally for clay, corncob, nut shell, paper, or sand granular carriers and granular pesticide products, but need not be limited to these materials. There may be more appropriate test methods for other types of granular carriers and products.
SCOPE
1.1 This test method is used to determine the particle size distribution of granular carriers and granular pesticides.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 6.

General Information

Status
Historical
Publication Date
31-Jul-2011
ICS
19.120 - Particle size analysis. Sieving
Technical Committee
E35 - Pesticides, Antimicrobials, and Alternative Control Agents
Drafting Committee
E35.22 - Pesticide Formulations and Delivery Systems
Current Stage
Ref Project

Relations

Replaces
ASTM E726-01(2006) - Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides
Effective Date
01-Aug-2011
Referred By
ASTM E1520-23 - Standard Test Method for Particle Counts Per Pound of Granular Carriers and Dry-Applied Granular Formulations
Effective Date
01-Aug-2011
Referred By
ASTM E642-19 - Standard Practice for Determining Application Rates and Distribution Patterns from Aerial Application Equipment
Effective Date
01-Aug-2011

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ASTM E726-01(2011)e1 - Standard Test Method for Particle Size Distribution of Granular Carriers and Granular PesticidesASTM E726-01(2011)e1 - Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides
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ASTM E726-01(2011)e1 - Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides
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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
´1
Designation: E726 − 01(Reapproved 2011)
Standard Test Method for
Particle Size Distribution of Granular Carriers and Granular
Pesticides
This standard is issued under the fixed designation E726; 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.
´ NOTE—An editorial change was made to subsection 4.1 in August 2011.
1. Scope pesticide products, but need not be limited to these materials.
There may be more appropriate test methods for other types of
1.1 This test method is used to determine the particle size
granular carriers and products.
distribution of granular carriers and granular pesticides.
1.2 The values stated in SI units are to be regarded as 5. Apparatus
standard. No other units of measurement are included in this
5.1 Brushes; Tyler Part No. 8576 soft brass wire brush, or
standard.
equivalent, for 100 mesh (150 µm) and coarser sieves. Tyler
1.3 This standard does not purport to address all of the
nylon bristle brush (Part No. 8577), or equivalent, for screens
safety concerns, if any, associated with its use. It is the
finer than 100 mesh.
responsibility of the user of this standard to establish appro-
5.2 Mechanical Sieve Shaker; a Tyler RoTap sieve shaker,
priate safety and health practices and determine the applica-
or equivalent, or other agreed upon device.
bility of regulatory limitations prior to use. For specific hazard
5.3 Sieves; U.S. standard 8-in. (20.3 cm) diameter sieves, or
statements, see Section 6.
equivalent, conforming to Specification E11.
2. Referenced Documents
5.4 Bottom Receiver Pan and Top Sieve Cover.
2.1 ASTM Standards:
5.5 Interval Timer; adjustable, with an accuracy of 610 s.
E11 Specification for Woven Wire Test Sieve Cloth and Test
5.6 Balance; sensitivity of 0.1 g.
Sieves
E725 Test Method for Sampling Granular Carriers and
6. Hazards
Granular Pesticides
6.1 Before testing, read the precautionary statements on the
3. Summary of Test Method
productlabel,andtheMaterialSafetyDataSheet,orboth.Take
proper precautions to prevent skin contact and inhalation of the
3.1 A known weight of the granular carrier or granular
fines, or the vapors, or both. Take care to prevent contamina-
pesticide is placed on the top sieve of a stacked set of U.S.
tion of the surrounding area. Always wear the appropriate
standard sieves and shaken under standard conditions for a
safety equipment and, where indicated, wear respiratory de-
specified period of time. The weight percent of the granules
vices approved by NIOSH for the product being tested.
retained on each sieve and the bottom pan is determined.
7. Procedure
4. Significance and Use
7.1 Clean and stack the specified sieves in order of size with
4.1 This procedure was designed principally for clay,
the pan on the bottom, and the sieve with the largest mesh on
corncob,nutshell,paper,orsandgranularcarriersandgranular
the top.
1 7.2 Use a representative sample of approximately 10065g
This test method is under the jurisdiction of ASTM Committee E35 on
Pesticides, Antimicrobials, and Alternative Control Agents and is the direct as defined in Test Method E725.
responsibility of Subcommittee E35.22 on Pesticide Formulations and Delivery
7.3 Weigh the sample to 60.1 g.
Syst
...

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4.1 This procedure was designed principally for clay, corncob, nut shell, paper, or sand granular carriers and granular pesticide products, but need not be limited to these materials. There may be more appropriate test methods for other types of granular carriers and products.
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1.1 This test method covers the determination of particle size distribution of catalyst and catalyst carrier (see Terminology D3766) particles using an electroconductive sensing method and is one of several valuable methods for the measurement of particle size.  
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5.1 The test can be used to evaluate the following:  
5.1.1 Classification or Comparison of Powders—There are several parameters that can be used to classify powders relative to each other, the most useful being the measured shear stresses, cohesion, flow function and angle of internal friction.  
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Note 1: The quality of the result produced by this test method is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this test method are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors (4).
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1.1 This method covers the apparatus and procedures for quantifying the incipient failure properties of a powder as a function of the normal stress for a given level of consolidation. The method also allows the further determination of the unconfined yield strength, internal friction angles, cohesion, flow function, major principal stress and wall friction angle (with the appropriate wall coupon fitted to the correct accessory).  
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1.3 The apparatus is appropriate for measuring the properties of powders with a maximum particle size of 1 mm. It is practicable to test powders that have a small proportion of particles of 1 mm or greater, but it is recommended they represent no more than 5 % of the total mass in samples with a normal (Gaussian) size distribution.  
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1.5 Un...

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ASTM E1617-09(2024)(Practice)
Standard Practice for Reporting Particle Size Characterization Data

SIGNIFICANCE AND USE
3.1 When evaluating the particle size information, if the procedures of the data processing are not available, the user of the data must make assumptions concerning the reported data in the event of analytical inconsistencies. In order for different data sets to be compared it is crucial that the parties report the analytical techniques and methods or procedures for evaluating, calculating, compiling or otherwise processing the data to be reported.  
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SCOPE
1.1 This practice covers reporting particle size measurement data.  
1.2 This practice applies to particle size measurement methods, devices, detail levels, and data formats for dry powders, and wet suspensions of solids, gels, or emulsion droplets. This practice does not pertain to liquid particles.  
Note 1: For information on reporting liquid particle measurement data, refer to Practice E799.  
1.3 This practice does not concern particle concentration information.  
1.4 This practice uses SI (Système International) units as standard. State all numerical values in terms of SI units unless specific instrumentation software reports particle size information, including percentiles, indices, and distributions as tabulations and graphs using alternate units. In this case, present both reported and equivalent SI units in the final written report. Refer to Practice E380 for proper usage of SI units.  
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Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis

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4.1 The method of powder dispersion in a liquid has a significant effect on the results of a particle size distribution analysis. The analysis will show a too-coarse, unstable, or nonrepeatable distribution if the powder has not been dispersed adequately. It is therefore important that parties wishing to compare their analyses use the same dispersion technique.  
4.2 This guide provides ways of deriving dispersion techniques for a range of metal powders and compounds. It should be used by all parties performing liquid-dispersed particle size analysis of all of the materials covered by this guide (see 1.1, 1.2, and 4.1).  
4.3 Table 1 provides some dispersion procedures that have been found useful and consistent for the particular materials listed there. These are only suggested dispersion procedures; the procedures and dispersion checks of 7.1.2 – 7.1.4, or the more detailed method development procedures of Guide E3340, should still be used to verify adequate dispersion for each particular material and particle size range. (A) Stated ultrasonic power and duration times are given as an indication only. Specific conditions should be sought for the particular system in question during the method development phase.(B) Tween 21, chemically known as polyoxyethylene6 sorbitan monolaurate, is manufactured by Croda International PLC, and is available from various chemical suppliers.(C) Three to five drops Tween 21 in 30 to 50 mL water.  
4.4 This guide should be used in the preparation of powders for use in Test Methods B761 and B822 and other procedures that analyze metal powder particle size distributions in liquid-dispersed systems.
SCOPE
1.1 This 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.  
1.2 This 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.  
1.3 This 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.  
1.4 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.  
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ASTM D8200-22(Practice)
Standard Practice for Creating a Correlation to Compare Particle Size Distribution Results of Proppants by Dynamic Imaging Analyzers and Sieves

SIGNIFICANCE AND USE
5.1 The ability to correlate results of analyzers to sieve sets enables the use of non-sieve methods to be employed that give comparable results to each other.  
5.2 The use of analyzers for proppant measurement has the benefit of providing particle shape characteristics which are important in the performance of these materials. Shape analysis is currently done by operator’s determination based on a visual observation of a small number of particles per API 19C. Available information from imaging analysis of many particles can be used to assess the proppant shape characteristics as opposed to just a small number.
SCOPE
1.1 This practice describes procedural steps to create a correlation that can be used to compare results of proppant size distributions between dynamic imaging analyzers (analyzers) and prescribed sieve sets.  
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1.5 Observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026, unless superseded by this standard.  
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1.6 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard” in the title means only that the document has been approved through the ASTM consensus process.  
1.7 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.  
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