ASTM E725-96(2020)
(Test Method)Standard Test Method for Sampling Granular Carriers and Granular Pesticides
Standard Test Method for Sampling Granular Carriers and Granular Pesticides
SIGNIFICANCE AND USE
3.1 This procedure was designed principally for clay, corncob, nut shell, or sand granular carriers and granular pesticide products but need not be limited to these materials. There may be more appropriate sampling methods for other types of granular carriers and products.
SCOPE
1.1 This test method presents general procedures for sampling and sampling practice for granular carriers and granular pesticides.
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. For specific hazard statements see Section 5.
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.
General Information
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Designation: E725 − 96 (Reapproved 2020)
Standard Test Method for
Sampling Granular Carriers and Granular Pesticides
This standard is issued under the fixed designation E725; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Significance and Use
1.1 This test method presents general procedures for sam- 3.1 This procedure was designed principally for clay,
pling and sampling practice for granular carriers and granular corncob, nut shell, or sand granular carriers and granular
pesticides. pesticide products but need not be limited to these materials.
There may be more appropriate sampling methods for other
1.2 The values stated in inch-pound units are to be regarded
types of granular carriers and products.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
4. Apparatus
and are not considered standard.
4.1 Sample Container, fabricated from glass, plastic, or
1.3 This standard does not purport to address all of the
metal as required.
safety concerns, if any, associated with its use. It is the
4.2 Sample Splitter, single-stage riffle type.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4.3 GrainThieforSamplingTube(Fig.1),constructedfrom
mine the applicability of regulatory limitations prior to use.
aluminum, chrome steel, poly(vinyl chloride) or other suitable
For specific hazard statements see Section 5.
material, 30 in. (762 mm) long and 1.5 to 1.75 in. (38 to 44
1.4 This international standard was developed in accor-
mm) in diameter.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the 5. Hazards
Development of International Standards, Guides and Recom-
5.1 Safety Precautions—Before sampling granular pesti-
mendations issued by the World Trade Organization Technical
cides read the precautionary statements on the product label
Barriers to Trade (TBT) Committee.
and the material safety data sheet (MSDS). Take proper
precautions to prevent skin contact and inhalation of the fines
2. Summary of Test Method
and vapors. Whenever possible, work under a hood. Take care
2.1 To produce a sample that truly represents the nature and
topreventcontaminationofthesurroundingarea.Alwayswear
condition of the material from which it was obtained, a gross
the appropriate safety equipment and, where indicated, wear
sampleisreducedbystandardlaboratoryprocedures(coneand
respiratory devices approved by NIOSH for the product being
quartering, riffling, etc.) to a suitable laboratory sample. The
sampled.
basic sampling unit for granules is at least 500× the weight of
5.2 Sample Precautions for Sensitive Materials—Some
the largest particles and is obtained in a manner to give high
products (hygroscopic, volatile, or oxidizable, etc.) may re-
probability that it contains a representative portion of the
quirespecialsamplingprecautions.Sampleexposureshouldbe
material. As a safeguard against unforeseen sectional
minimized.
variations, a number of unit samples may be obtained and
combined to form a gross sample.
5.3 Sample Containers—These items, as well as the sam-
pling apparatus, must be clean and free of any material that
1 mightcontaminatethesample.Anappropriatecontainershould
This test method is under the jurisdiction of ASTM Committee E35 on
be selected for the product and handling it will receive. For
Pesticides, Antimicrobials, and Alternative Control Agents and is the direct
responsibility of Subcommittee E35.22 on Pesticide Formulations and Delivery
example, containers for hygroscopic, readily oxidizable,
Systems.
volatile, or moisture-sensitive material, as well as for those
Current edition approved Dec. 1, 2020. Published December 2020. Originally
materials to be tested for moisture content, must be capable of
approved in 1980. Last previous edition approved in 2012 as E725–96 (2012).
DOI: 10.1520/E0725-96R20. being sealed airtight.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E725 − 96 (2020)
Packages (drums, bags, etc.) may be sampled in accordance
with Table 1 to obtain a gross sample. Insert the probe in the
material vertically to penetrate the mass. Discharge the sample
into a container. To improve sample representation, replicate
samplescanbetakenfromalternativelocationsinthepackage.
6.4.1 The use of a probe can cause attrition; therefore, the
probe sampling procedure is not recommended when sampling
for particle size determination.
6.5 Sampling Segregated Materials—Where material may
F
...
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: E725 − 96 (Reapproved 2012) E725 − 96 (Reapproved 2020)
Standard Test Method for
Sampling Granular Carriers and Granular Pesticides
This standard is issued under the fixed designation E725; 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 presents general procedures for sampling and sampling practice for granular carriers and granular pesticides.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. For specific hazard statements see Section 5.
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.
2. Summary of Test Method
2.1 To produce a sample that truly represents the nature and condition of the material from which it was obtained, a gross sample
is reduced by standard laboratory procedures (cone and quartering, riffling, etc.) to a suitable laboratory sample. The basic sampling
unit for granules is at least 500× the weight of the largest particles and is obtained in a manner to give high probability that it
contains a representative portion of the material. As a safeguard against unforeseen sectional variations, a number of unit samples
may be obtained and combined to form a gross sample.
3. Significance and Use
3.1 This procedure was designed principally for clay, corncob, nut shell, or sand granular carriers and granular pesticide products
but need not be limited to these materials. There may be more appropriate sampling methods for other types of granular carriers
and products.
4. Apparatus
4.1 Sample Container, fabricated from glass, plastic, or metal as required.
4.2 Sample Splitter, single-stage riffle type.
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, 2012Dec. 1, 2020. Published October 2012December 2020. Originally approved in 1980. Last previous edition approved in 20062012
as E725 – 96 (2006). (2012). DOI: 10.1520/E0725-96R12.10.1520/E0725-96R20.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E725 − 96 (2020)
4.3 Grain Thief or Sampling Tube (Fig. 1), constructed from aluminum, chrome steel, poly(vinyl chloride) or other suitable
material, 30 in. (762 mm) long and 1.5 to 1.75 in. (38 to 44 mm) in diameter.
5. Hazards
5.1 Safety Precautions—Before sampling granular pesticides read the precautionary statements on the product label and the
material safety data sheet (MSDS). Take proper precautions to prevent skin contact and inhalation of the fines and vapors.
Whenever possible, work under a hood. 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 sampled.
5.2 Sample Precautions for Sensitive Materials—Some products (hygroscopic, volatile, or oxidizable, etc.) may require special
sampling precautions. Sample exposure should be minimized.
5.3 Sample Containers—These items, as well as the sampling apparatus, must be clean and free of any material that might
contaminate the sample. An appropriate container should be selected for the product and handling it will receive. For example,
containers for hygroscopic, readily oxidizable, volatile, or moisture-sensitive material, as well as for those materials to be tested
for moisture content, must be capable of being sealed airtight.
5.4 Care and Labeling of Sample—Care should be taken to ensure that the sample is properly labeled and reaches the laboratory
promptly and in its original state.
6. Procedures
6.1 Sampling Packages—When sampling material that is contained in a number of packages, Table 1 is a guide to the minimum
number of packages (selected at random) to be sampled.
6.2 Sampling
...
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