AS 1056.2-1985

1 - AS 1056.2-1985 STORAGE WATER HEATERS - SPECIFIC REQUIREMENTS FOR WATER HEATERS WITH SINGLE SHELLS
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE.
5 - 2 APPLICATION.
5 - 3 REFERENCED DOCUMENTS.
5 - 4 PLASTICS SHELLS
5 - 4.1 Material.
5 - 4.2 Construction.
5 - 4.3 Thickness.
6 - 4.4 Internal radius.
6 - 4.5 Prohibited materials in contact.
6 - 4.6 Attachment of fittings.
6 - 4.7 Watertightness.
6 - 5 NON-FERROUS METAL SHELLS.
6 - 5.1 Materials.
6 - 5.2 Thickness.
6 - 5.3 Cleanliness.
6 - 5.4 Stress relief.
6 - 5.5 Jointing.
7 - 5.6 Watertightness.
7 - 6 STAINLESS STEEL SHELLS.
7 - 6.1 Material.
7 - 6.2 Protection against corrosion.
7 - 6.3 Cleanliness.
7 - 6.4 Welding.
7 - 6.5 Passivation.
7 - 6.6 Watertightness.
7 - 7 THERMOSTAT SETTINGS.
7 - 8 DETERMINATION OF COMPLIANCE.
7 - 8.1 Type tests.
7 - 8.2 Routine tests.
9 - APPENDIX A - METHOD FOR THE DETERMINATION OF THE RESISTANCE TO DEGRADATION OF POLYPROPYLENE
9 - A1 SCOPE.
9 - A2 PRINCIPLE.
9 - A3 APPARATUS
10 - A4 SELECTION OF SAMPLES.
10 - A5 PREPARATION OF SPECIMENS.
10 - A6 TEST CONDITIONS.
10 - A7 PROCEDURE.
10 - A8 REPORT.

Specifies constructional requirements for water containers (shells) made of single materials, viz. plastics, copper or copper alloys, or stainless steel. Gives recommendations on maximum water temperature and specifies routine and type test schedules.

This standard specifies requirements for water heaters with single shells made from the following: (a) Plastics (for operation at a head not greater than 2 mH2O).(b) Non-ferrous metal.(c) Stainless steel.