ASTM E1520-99(2015)

Standard Test Method for Particle Counts Per Pound of Granular Carriers and Dry-Applied Granular Formulations

SIGNIFICANCE AND USE
4.1 This test method was designed principally for clay granular carriers and clay-based granular formulations, but need not be limited to these materials.  
4.2 This procedure is applicable to granules in the range from 8 to 60 mesh (2.36 to 0.25 mm).  
4.3 The sieve sizes used to calculate total particle count will be called the desired range and should be specified as part of the test results.
SCOPE
1.1 This test method is used to determine the number of particles per pound of granular carriers and granular pesticide formulations.  
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 precautionary statements, see Section 6.

General Information

• Status: Historical
• Publication Date: 30-Sep-2015
• ICS: 13.080.20 - Physical properties of soils
• Technical Committee: E35 - Pesticides, Antimicrobials, and Alternative Control Agents
• Drafting Committee: E35.22 - Pesticide Formulations and Delivery Systems

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E1520 − 99 (Reapproved 2015)
Standard Test Method for
Particle Counts Per Pound of Granular Carriers and Dry-
Applied Granular Formulations
This standard is issued under the fixed designation E1520; 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 granules retained on each sieve is determined. The number of
particles per pound of granular material is then calculated.
1.1 This test method is used to determine the number of
particles per pound of granular carriers and granular pesticide
4. Significance and Use
formulations.
4.1 This test method was designed principally for clay
1.2 The values stated in SI units are to be regarded as
granular carriers and clay-based granular formulations, but
standard. No other units of measurement are included in this
need not be limited to these materials.
standard.
4.2 This procedure is applicable to granules in the range
1.3 This standard does not purport to address all of the
from 8 to 60 mesh (2.36 to 0.25 mm).
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 4.3 The sieve sizes used to calculate total particle count will
priate safety and health practices and determine the applica-
be called the desired range and should be specified as part of
bility of regulatory limitations prior to use. For specific the test results.
precautionary statements, see Section 6.
5. Apparatus
2. Referenced Documents
5.1 Mechanical Sieve Shaker, a Tyler RoTap sieve shaker or
equivalent.
2.1 ASTM Standards:
E11 Specification for Woven Wire Test Sieve Cloth and Test
5.2 Sieves, U.S. standard stainless steel 8-in. diameter sieves
Sieves
conforming to Specification E11.
E725 Test Method for Sampling Granular Carriers and
5.3 Bottom Receiver Pan and Top Sieve Cover.
Granular Pesticides
E726 Test Method for Particle Size Distribution of Granular 5.4 Interval Timer, adjustable, with an accuracy of +10 s.
Carriers and Granular Pesticides
5.5 Balance, sensitivity of 0.01 g.
E727/E727M Test Methods for Determining Bulk Density of
Granular Carriers and Granular Pesticides
6. Safety Precautions
6.1 Before testing read the precautionary statements on the
3. Summary of Test Method
product label or the Material Safety Data Sheet (MSDS), or
3.1 A known weight of the granular carrier or granular
both. Take proper precautions to prevent skin contact and
pesticide formulation is placed on the top sieve of a stacked set
inhalation of the fines or vapors, or both. Take care to prevent
of U.S. standard stainless steel screens. The sieves are shaken
contamination of the surrounding area. Always wear the
for a specified period of time. The weight percent of the
appropriate safety equipment and, where indicated, wear respi-
ratory devices approved by (NIOSH) for the product being
tested.
This test method is under the jurisdiction of ASTM Committee E35 on
Pesticides, Antimicrobials, and Alternative Control Agents and is the direct 7. Procedure
responsibility of Subcommittee E35.22 on Pesticide Formulations and Delivery
7.1 Record tare weights of each sieve and bottom pan to
Systems.
Current edition approved Oct. 1, 2015. Published November 2015. Originally 60.01 g.
approved in 1993. Last previous edition approved in 2009 as E1520 - 99(2009).
7.2 Order stack of screens by size with the finest sieve next
DOI: 10.1520/E1520-99R15.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or to the pan.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
7.3 Use a representative sample of 100 6 5 g obtained in
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. accordance with Test Method E725.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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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: E1520 − 99 (Reapproved 2009) E1520 − 99 (Reapproved 2015)
Standard Test Method for
Particle Counts Per Pound of Granular Carriers and Dry-
Applied Granular Formulations
This standard is issued under the fixed designation E1520; 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 is used to determine the number of particles per pound of granular carriers and granular pesticide
formulations.
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 precautionary statements, see Section 6.
2. Referenced Documents
2.1 ASTM Standards:
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E725 Test Method for Sampling Granular Carriers and Granular Pesticides
E726 Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides
E727E727/E727M Test Methods for Determining Bulk Density of Granular Carriers and Granular Pesticides
3. Summary of Test Method
3.1 A known weight of the granular carrier or granular pesticide formulation is placed on the top sieve of a stacked set of U.S.
standard stainless steel screens. The sieves are shaken for a specified period of time. The weight percent of the granules retained
on each sieve is determined. The number of particles per pound of granular material is then calculated.
4. Significance and Use
4.1 This test method was designed principally for clay granular carriers and clay-based granular formulations, but need not be
limited to these materials.
4.2 This procedure is applicable to granules in the range from 8 to 60 mesh (2.36 to 0.25 mm).
4.3 The sieve sizes used to calculate total particle count will be called the desired range and should be specified as part of the
test results.
5. Apparatus
5.1 Mechanical Sieve Shaker, a Tyler RoTap sieve shaker or equivalent.
5.2 Sieves, U.S. standard stainless steel 8-in. diameter sieves conforming to Specification E11.
5.3 Bottom Receiver Pan and Top Sieve Cover.
5.4 Interval Timer, adjustable, with an accuracy of +10 s.
5.5 Balance, sensitivity of 0.01 g.
This test method is under the jurisdiction of ASTM Committee E35 on Pesticides, Antimicrobials, and Alternative Control Agents and is the direct responsibility of
Subcommittee E35.22 on Pesticide Formulations and Delivery Systems.
Current edition approved Oct. 1, 2009Oct. 1, 2015. Published November 2009November 2015. Originally approved in 1993. Last previous edition approved in 20042009
as E1520 - 99(2004).(2009). DOI: 10.1520/E1520-99R09.10.1520/E1520-99R15.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E1520 − 99 (2015)
6. Safety Precautions
6.1 Before testing read the precautionary statements on the product label or the Material Safety Data Sheet (MSDS), or both.
Take proper precautions to prevent skin contact and inhalation of the fines or vapors, or both. Take care to prevent contamination
of the surrounding area. Always wear the appropriate safety equipment and, where indicated, wear respiratory devices approved
by (NIOSH) for the product being tested.
7. Procedure
7.1 Record tare weights of each sieve and bottom pan to 60.01 g.
...