AS/NZS 3662:1996

1 - AS/NZS 3662:1996 WATER SUPPLY-WATER EFFICIENT MAINS PRESSURE SHOWER SPRAY HEADS
4 - PREFACE
5 - CONTENTS
6 - FOREWORD
7 - 1 SCOPE
7 - 2 REFERENCED DOCUMENTS
7 - 3 DEFINITIONS
7 - 3.1 Flow pressure
7 - 3.2 Nominal flow rate
7 - 3.3 Mean spray spread angle
7 - 3.4 Shower spray head
7 - 3.5 Spray pattern
7 - 3.6 Temperature gradient
7 - 3.7 Water efficient shower spray head
7 - 4 DESIGN
7 - 4.1 End connections
7 - 4.2 Flow restricting mechanism
8 - 5 PERFORMANCE REQUIREMENTS
8 - 5.1 Nominal flow rate
8 - 5.2 Spray pattern
8 - 5.3 Temperature gradient
8 - 6 MARKING REQUIREMENTS
9 - APPENDIX A - MEASUREMENT OF NOMINAL FLOW RATE
9 - A1 SCOPE
9 - A2 PRINCIPLE
9 - A3 APPARATUS
9 - A4 PROCEDURE
9 - A5 TEST REPORT
11 - APPENDIX B - MEASUREMENT OF MEAN SPRAY SPREAD
11 - B1 SCOPE
11 - B2 PRINCIPLE
11 - B3 APPARATUS
11 - B4 PROCEDURE
11 - B5 TEST REPORT
13 - APPENDIX C - CALCULATION OF MEAN SPRAY SPREAD ANGLE
13 - C1 SCOPE
13 - C2 CALCULATIONS
15 - APPENDIX D - MEASUREMENT OF TEMPERATURE GRADIENT
15 - D1
15 - D2 PRINCIPLE
15 - D3 APPARATUS
15 - D4 PROCEDURE
15 - D5 TEST REPORT

Specifies requirements for performance of water efficient shower spray heads for ablution purposes.

This Standard specifies requirements for performance of wall or overhead-mounted portable, or fixed water efficient shower spray heads for ablution purposes. The shower spray heads are only suitable for connection to systems with mains pressure cold and either mains pressure hot or low pressure hot water when a mixer designed for unequal pressures is used. Materials, dimensions and mechanical construction of shower spray heads are not included.NOTE: The use of low-flow shower spray heads may not be compatible with some instantaneous-type water heaters which may need to deliver fixed quantities of water.

First published in Australia as AS 3662-1989.
Jointly revised and designated AS/NZS 3662:1993.
Third edition 1996.