ASTM E727-08(R2020) pdf free download

ASTM E727-08(R2020) pdf free download.Standard Test Methods for Determining Bulk Density of Granular Carriers and Granular Pesticides
1. 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 MethodA) or loose-fill bulk density (Test Method B). 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the 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 appro- priate safety, health, and environmental practices and deter- mine the applicability of regulatory limitations prior to use. For specific hazard statements see Section 4. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Significance and Use
3.1 These test methods were designed principally for clay, corncob, nut shell, paper-based 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 or pesticide products. The differences in the following test methods are slight, but they offer a choice of a recognized test procedure.
4. Hazards
4.1 Before testing granular pesticides, read the precaution- ary statements on the product label. Take proper precautions to prevent skin contact and inhalation of the fines and vapors. 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.
5. Summary of Test Method A—Free-Fall Bulk Density
5.1 A tared 500-mL cylinder is filled with the granular carrier or granular pesticide. The weight of the sample is measured and the bulk density calculated in pounds per cubic foot or kilograms per cubic meter.
6. Apparatus
6.1 Balance, sensitivity of 1 g. 6.2 Cylinder, graduated, capacity 500 mL. The cylinder should be calibrated at the 500-mL mark by using 499 g water at 20°C. The cylinder is cut offat the 500-mL mark and ground smooth. 6.3 Funnel, powder, 152 mm [6 in.] in diameter at the top, bottom stem opening of 25-mm [1-in.] diameter, and sides having a slope of approximately 60°. 6.4 Spatula, large with 51-mm [2-in.] wide blade. 6.5 Beaker, glass, metal, or plastic, 600-mL capacity. 6.6 Pan, metal or plastic, 203 mm [8 in.] in diameter with 51-mm [2-in.] sides to collect overflow of cylinder. 6.7 Ring Stand and Ring Clamp.
7. Procedure
7.1 Weigh the 500-mL graduated cylinder and place it in the overflow pan. 7.2 Support the funnel on a ring which is then affixed to a ring stand such that the top of the funnel is horizontal and rigidly in position. Adjust the height of the funnel so that its bottom position is 38 mm [1.5 in.] above the top center of the 500-mL graduated cylinder. 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 600-mL beaker with a representative sample of the granular carrier as defined in Test Method E725 and pour into the funnel. Quickly remove the metal plate, allowing the granules to fall into the graduate of their own accord. 7.4 Hold the graduate firmly and level offthe granules to the top of the graduate with the straight edge of the spatula. Avoid jiggling or vibrating the cylinder. 7.5 Tap the cylinder to tamp the particles into the cylinder away from the top, to avoid spillage losses during handling. 7.6 Reweigh the cylinder and determine the weight of the sample to the nearest 1 g. 7.7 Determine the weight on duplicate samples.