ASTM E727-91(1998)
(Test Method)Standard Test Methods for Determining Bulk Density of Granular Carriers and Granular Pesticides
Standard Test Methods for Determining Bulk Density of Granular Carriers and Granular Pesticides
SCOPE
1.1 These test methods are used to determine bulk density of granular carriers and granular pesticides by measuring either free-fall bulk density (Test Method A) or loose-fill bulk density (Test Method B).
1.2 This standard does not purport to address all of the safety problems 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 4.
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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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.
Designation: E 727 – 91 (Reapproved 1998)
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Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Methods for
Determining Bulk Density of Granular Carriers and
1
Granular Pesticides
This standard is issued under the fixed designation E 727; 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 measured and the bulk density calculated in pounds per cubic
foot.
1.1 These test methods are used to determine bulk density of
granular carriers and granular pesticides by measuring either
6. Apparatus
free-fall bulk density (Test Method A) or loose-fill bulk density
6.1 Balance, sensitivity of 1 g.
(Test Method B).
6.2 Cylinder, graduated, capacity 500 mL. The cylinder
1.2 This standard does not purport to address all of the
should be calibrated at the 500-mL mark by using 500 g water
safety concerns, if any, associated with its use. It is the
at 20°C. The cylinder is cut off at the 500-mL mark and ground
responsibility of the user of this standard to establish appro-
smooth.
priate safety and health practices and determine the applica-
6.3 Funnel, powder, 6 in. (152 mm) in diameter at the top,
bility of regulatory limitations prior to use. For specific hazard
bottom stem opening of 1-in. (25-mm) diameter, and sides
statements see Section 4.
having a slope of approximately 60°.
2. Referenced Documents 6.4 Spatula, large with 2-in. (51-mm) wide blade.
6.5 Beaker, glass, metal, or plastic, 600-mL capacity.
2.1 ASTM Standards:
6.6 Pan, metal or plastic, 8 in. (203 mm) in diameter with
E 725 Test Method for Sampling Granular Carriers and
2
2-in. (51-mm) sides to collect overflow of cylinder.
Granular Pesticides
6.7 Ring Stand and Ring Clamp.
3. Significance and Use
7. Procedure
3.1 These test methods were designed principally with clay,
7.1 Weigh the 500-mL graduated cylinder and place it in the
corncob, nut shell, or sand granular carriers, and granular
overflow pan.
pesticide products, but need not be limited to these materials.
7.2 Support the funnel on a ring which is then affixed to a
There may be more appropriate test methods for other types of
ring stand such that the top of the funnel is horizontal and
granular carriers or pesticide products. The differences in the
rigidly in position. Adjust the height of the funnel so that its
following test methods are slight, but they offer a choice of a
bottom position is 1.5 in. (38 mm) above the top center of the
recognized test procedure.
500-mL graduated cylinder.
4. Hazards 7.3 Hold a piece of flat metal (such as a wide spatula or
similar tool) against the bottom of the funnel stem. Fill a
4.1 Before testing granular pesticides, read the precaution-
600-mL beaker with a representative sample of the granular
ary statements on the product label. Take proper precautions to
carrier as defined in Test Method E 725 and pour into the
prevent skin contact and inhalation of the fines and vapors.
funnel. Quickly remove the metal plate, allowing the granules
Take care to prevent contamination of the surrounding area.
to fall into the graduate of their own accord.
Always wear the appropriate safety equipment and, where
7.4 Hold the graduate firmly and level off the granules to the
indicated, wear respiratory devices approved by NIOSH for the
top of the graduate with the straight edge of the spatula. Avoid
product being tested.
jiggling or vibrating the cylinder.
5. Summary of Test Method A—Free-Fall Bulk Density
7.5 Tap the cylinder to tamp the particles into the cylinder
away from the top, to avoid spillage losses during handling.
5.1 A tared 500-mL cylinder is filled with the granular
7.6 Reweigh the cylinder and determine the weight of the
carrier or granular pesticide. The weight of the sample is
sample to the nearest 1 g.
7.7 Determine the weight on duplicate samples.
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These test methods are under the jurisdiction of ASTM Committee E-35 on
Pesticides and are the direct responsibility of Subcommittee E35.22 on Pesticide
8. Calculation
Equipment.
Current edition approved March 15, 1991. Published May 1991. Originally
8.1 For the granular carrier or granular pesticide, calculate
published as E 727 – 80. Last previous edition E 727 – 86.
the free-fall density as follows:
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Annual Book of ASTM Standards, Vol 11.05.
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NOTICE:¬This¬standard¬has¬either¬been¬superseded¬and¬replaced¬by¬a¬new¬version¬or
discontinued.¬Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
E 727
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11.3 Close the sl
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