I.S. 70:1980

DECLARATION
1 GENERAL
  1.1 Scope
  1.2 Definitions
  1.3 Workmanship
  1.4 Manufacturer's certificate
  1.5 Inspection
  1.6 Marking
2 MATERIALS AND DESIGN
  2.1 General
  2.2 Requirements for particular materials
  2.3 Soft solder
  2.4 Hard solder
  2.5 Flushing apparatus
  2.6 Volume of discharge per flush
  2.7 Rate of discharge
  2.8 Flush restrictor devices
  2.9 Water-line
  2.10 Spill-over level
  2.11 Warning pipe and inlet connections
  2.12 Accommodation of ballvalves
  2.13 Covers
3 CONSTRUCTION
  3.1 Shell
  3.2 Operating lever and pull
  3.3 Flush pipe connection
4 BOTTOM CONNECTION CISTERNS
  4.1 General
  4.2 Bottom connection inlet pipe assemblies
  4.3 Bottom connection warning pipes
  4.4 Hydraulic test
5 FLUSH PIPES
  5.1 General requirements
  5.2 Special requirements for flush pipes for use
       with cisterns at high level
  5.3 Special requirements for flush pipes for use
       with cisterns at low level
Appendix A Volume of discharge test
Appendix B Rate of discharge test
Appendix C Colour fastness test
Appendix D Distortion and dead load test
Appendix E Front thrust test
Appendix F Impact test