ASTM-D1895 › Standard Test Methods for Apparent Density, Bulk Factor, and Pourability of Plastic Materials
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 These test methods cover the measurement of apparent density, bulk factor, and where applicable, the pourability of plastic materials such as molding powders. Different procedures are given for application to the various forms of these materials that are commonly encountered, from fine powders and granules to large flakes and cut fibers.
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.
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.
Note 1: Test Method A is equivalent to ISO Method R 60 as described in the appendix. Test Method C is identical with ISO Method R 61.
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.
Significance and Use
4.1 These test methods provide useful indexes of performance of plastic materials such as powders and granules with respect to their handling in packaging and fabrication.
4.2 Apparent density is a measure of the fluffiness of a material.
4.3 Bulk factor is a measure of volume change that may be expected in fabrication.
4.4 Pourability characterizes the handling properties of a finely divided plastic material. It is a measure of the readiness with which such materials will flow through hoppers and feed tubes and deliver uniform weights of material.
Keywords
apparent density; bulk factor; pourability;
To find similar documents by ASTM Volume:
08.01 (Plastics (I): D256 - D3159)
To find similar documents by classification:
83.080.01 (Plastics in general)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Customers who bought this document also bought:
ASTM-E18Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM-D445
Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM-A580
Standard Specification for Stainless Steel Wire
Document Number
ASTM-D1895-17
Revision Level
2017 EDITION
Status
Current
Modification Type
Revision
Publication Date
Sept. 15, 2017
Document Type
Test Method
Page Count
6 pages
Committee Number
D20.70