BS PAS 33(1999) : 1999

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Items to be agreed and documented
5 Central heating systems
6 Equipment and fittings
7 Information exchange
8 Design
9 Installation
10 Commissioning
11 Quality management
12 Warranties
13 Maintenance and records
Annex A (informative) Legal issues
Annex B (informative) Environmental conditions
Annex C (informative) Data for combination boilers
Bibliography
Table 1 - Central heating components and their relevant
          British Standards
Table 2 - Copper pipework including insulation (thermal
          conductivity 0.04 W/(mK) at 0degreeC)
Table 3 - Plastic pipework including (thermal conductivity
          0.04 W/(mK) at 0degreeC)
Table 4 - Heating and hot water pipework (thermal
          conductivity 0.045 W/(mK) at 0degreeC)
Table 5 - Domestic hot water demand
Table 6 - Dimensions of metal pipes
Table 7 - Dimensions of plastic pipes
Table C.1 - Approximate water demand of water appliances
Table C.2 - Average flow rates and temperature rise for
            combination boiler

Defines requirements for sale, design, installation and management of a complete gas fired central heating system which incorporates the boiler, system and temperature controlling devices.