AS 1774.21-1996

1 - AS 1774.21-1996 REFRACTORIES AND REFRACTORY MATERIALS - PHYSICAL TEST METHODS - MOULDABLE REFRACTORIES - WORKABILITY INDEX
1 - PREFACE
1 - CONTENTS
1 - METHOD
1 - 1 SCOPE
1 - 2 REFERENCED DOCUMENTS
2 - 3 DEFINITIONS
2 - 3.1 Workability index
2 - 4 PRINCIPLE
2 - 5 SAFETY
2 - 6 APPARATUS
2 - 6.1 Ramming apparatus (see Figure 1)
2 - 6.2 Balance
3 - 7 PROCEDURE
3 - 8 CALCULATION
3 - 9 REPORTING OF RESULTS

Sets out a method for determining the workability of mouldable refractories at room temperature, by subjecting a cylindrical specimen to predetermined impacts.

This Standard sets out a method for determining the workability index of a mouldable refractory at room temperature.

First published as AS R31.21-1966.
Revised and redesignated AS 1774.21-1985.
Second edition 1996.