UNI EN ISO 16135 : 2006

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Design
  4.2 Materials
  4.3 Pressure/temperature rating
  4.4 Dimensions
  4.5 Operation
  4.6 Functional characteristics
  4.7 Manufacture
  4.8 Other requirement
5 Test procedures
  5.1 Documentation of test results
  5.2 Initial type tests
6 Declaration of compliance
7 Designation
8 Marking and preparation for storage and transportation
  8.1 Marking and documentation
  8.2 Preparation for storage and transportation
Annex A (informative) Procurement information
Annex B (informative) Type alternatives for multi-way ball valves
Annex ZA (informative) Relationship between this International
                       Standard and the Essential Requirements
                       of EU Directive 97/23 EC (PED)
Bibliography

Specifies requirements for the design, functional characteristics and manufacture of ball valves made of thermoplastics materials intended for isolating service, for control service, and to divert/mix fluids, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degree C and +120 degree C, for a lifetime of 25 years, and also specifies their tests.