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ASTM E726-01

(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

SCOPE
1.1 This test method is used to determine the particle size distribution of granular carriers and granular pesticides.  
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.  For specific hazard statements, see Section 6.

General Information

Status
Historical
Publication Date
09-Apr-2001
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 E726-96 - Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides
Effective Date
10-Apr-2001
Replaced By
ASTM E726-01(2006) - Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides
Effective Date
01-Nov-2006
Referred By
ASTM E1520-23 - Standard Test Method for Particle Counts Per Pound of Granular Carriers and Dry-Applied Granular Formulations
Effective Date
10-Apr-2001
Referred By
ASTM E642-19 - Standard Practice for Determining Application Rates and Distribution Patterns from Aerial Application Equipment
Effective Date
10-Apr-2001

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ASTM E726-01 - Standard Test Method for Particle Size Distribution of Granular Carriers and Granular PesticidesASTM E726-01 - Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides
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ASTM E726-01 - Standard Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E726–01
Standard Test Method for
Particle Size Distribution of Granular Carriers and Granular
1
Pesticides
This standard is issued under the fixed designation E 726; 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.
1. Scope 5. Apparatus
1.1 This test method is used to determine the particle size 5.1 Brushes; Tyler Part No. 8576 soft brass wire brush, or
distribution of granular carriers and granular pesticides. equivalent, for 100 mesh (150 µm) and coarser sieves. Tyler
1.2 This standard does not purport to address all of the nylon bristle brush (Part No. 8577), or equivalent, for screens
3
safety concerns, if any, associated with its use. It is the finer than 100 mesh.
4
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,
statements, see Section 6. or equivalent, conforming to SpecificationE11.
5.4 Bottom Receiver Pan and Top Sieve Cover.
2. Referenced Documents
5.5 Interval Timer; adjustable, with an accuracy of 610 s.
2
2.1 ASTM Standards: 5.6 Balance; sensitivity of 0.1 g.
E11 Specification for Wire-Cloth Sieves for Testing Pur-
6. Hazards
poses
E 725 Test Method of Sampling Granular Carriers and 6.1 Before testing, read the precautionary statements on the
Granular Pesticides productlabel,andtheMaterialSafetyDataSheet,orboth.Take
proper precautions to prevent skin contact and inhalation of the
3. Summary of Test Method
fines, or the vapors, or both. Take care to prevent contamina-
3.1 A known weight of the granular carrier or granular tion of the surrounding area. Always wear the appropriate
pesticide is placed on the top sieve of a stacked set of U.S. safety equipment and, where indicated, wear respiratory de-
standard sieves and shaken under standard conditions for a
vices approved by NIOSH for the product being tested.
specified period of time. The weight percent of the granules
7. Procedure
retained on each sieve and the bottom pan is determined.
7.1 Clean and stack the specified sieves in order of size with
4. Significance and Use
the pan on the bottom, and the sieve with the largest mesh on
4.1 This procedure was designed principally for clay, corn-
the top.
cob, nut shell paper, or sand granular carriers and granular 7.2 Use a representative sample of approximately 10065g
pesticide products, but need not be limited to these materials.
as defined in Test Method E 725.
There may be more appropriate test methods for other types of 7.3 Weigh the sample to 60.1 g.
granular carriers and products.
7.4 Transfer the whole weighed fraction onto the top sieve,
cover and shake for the time given in the product specification
or 10 min if time is not specified.
7.5 Remove the sieve assembly from the sieve shaker and,
1
This test method is under the jurisdiction of ASTM Committee E-35 on
using the brush, quantitatively transfer the granular material on
Pesticides and is
...

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5.1 This practice is primarily used in the horticulture industry to separates peat material into arbitrary fractions based on particle size. Physical separation of peat material according to particle size provides a useful indicator of the properties of a peat specimen such as pore space and degree of decomposition for unprocessed peat. It also provides a means of determining the amount of foreign matter not in a divided state such as sticks, stones, and glass.
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SCOPE
1.1 Peat materials consist of particles with various sizes. This practice covers the separation of peat particles into coarse, medium, and fine size fractions using the 2.36 mm (No. 8) and 0.850 mm (No. 20) sieves equipped with cover and bottom pan. This practice is applicable for peat materials used in the horticultural industry and can be used to verify the degree of decomposition of peat and to determine the foreign matter content.  
1.2 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only and are not considered standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this standard.  
1.2.1 It is common practice in the engineering/construction profession to concurrently use pounds to represent both a unit of mass (lbm) and of force (lbf). This practice implicitly combines two separate systems of units; the absolute and the gravitational systems. It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard. As stated, this standard includes the gravitational system of inch-pound units and does not use/present the slug unit of mass. However, the use of balances and scales recording pounds of mass (lbm) or recording density in lbm/ft3 shall not be regarded as nonconformance with this standard.  
1.3 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.  
1.3.1 The procedures used to specify how data are collected/recorded or calculated in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design.  
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Standard Test Method for Particle Size Distribution of Catalytic Materials by Sieving

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4.1 This test method can be used to determine particle size distributions of catalysts and supports for materials specifications, manufacturing control, and research and development work.
SCOPE
1.1 This test method covers the determination of particle size distribution of catalytic powder material using a sieving instrument and is one of several found valuable for the measurement of particle size. This test method is particularly suitable for particles in the 20 to 420 μm range. (See Terminology D3766.)  
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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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.  
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