ASTM D1155-03
Standard Test Method for Roundness of Glass Spheres
- Standard No.
- ASTM D1155-03
- Release Date
- 2003
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D1155-10
- Latest
- ASTM D1155-10(2020)
- Scope
The roundness of glass spheres is one measureable aspect relating to their performance as a retroreflective media. The function of this test method is to measure the percent of true spheres as related to compliance with applicable specifications.
Note 18212;This method has been used in other industrial areas outside the intended scope of this test method.
FIG. 1 Apparatus for Roundness Test of Glass Spheres1.1 This test method covers the determination of the percent of true spheres in glass spheres used for retroreflective marking purposes and industrial uses.
1.2 This test method includes two procedures as follows:
1.2.1 Procedure A in which the selected specimen is split into two size ranges or groups prior to separation into true spheres and irregular particles, and
1.2.2 Procedure B in which the selected specimen is split into five size ranges or groups prior to separation.
1.2.3 In determining compliance with specification requirements, either Procedure A or Procedure B may be used. Where tests indicate failure to meet the specified percent of true spheres and irregular particles, the referee test shall be made in accordance with Procedure B.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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.
ASTM D1155-03 Referenced Document
- ASTM E11 Standard Specification for Wire Cloth and Sieves for Testing Purposes
ASTM D1155-03 history
- 2020 ASTM D1155-10(2020) Standard Test Method for Roundness of Glass Spheres
- 2010 ASTM D1155-10(2015) Standard Test Method for Roundness of Glass Spheres
- 2010 ASTM D1155-10 Standard Test Method for Roundness of Glass Spheres
- 2003 ASTM D1155-03 Standard Test Method for Roundness of Glass Spheres
- 1989 ASTM D1155-89(1994)e1 Standard Test Method for Roundness of Glass Spheres
