3 Fire behaviour
3.1 Requirements and testing
The material used for pipes and fittings shall fulfil the requirements for class B1 building materials, as specified in DIN 4102-1. Fire behaviour shall be tested as in DIN 4102-1, with the exception of pipes and fittings with wall thicknesses as in DIN 4102-4.
4 Conformity assessment (quality control)
4.1 General
Pipes and fittings shall be checked at each production site for conformity with DIN EN 1329-1 and with clause 3 of this standard.
4.3 Type testing
Type testing shall be carried out to determine whether the requirements for the characteristics presented in tables 4 to 6 are met. Additional testing shall be carried out if changes to design, material or the manufacturing process result in any deviation from the substance of these tables.
4.4 Factory production control
The scope and frequency of testing to be carried out as part of factory production control procedures shall be as specified in tables 7 and 8.
4.4.1 Batch release
The manufacturer shall be responsible for specifying the size of a batch in a quality control plan. A batch shall only be released if a full cycle of tests and inspections has been carried out with the specified sampling
frequency, and all requirements have been met.
If a product does not fulfil the requirements for a characteristic given in table 7, the batch shall be rejected or the product shall be retested regarding the characteristic, as follows. The last product to fulfil the requirements of this standard shall be identified, and all previous products shall be accepted, while all subsequent products shall be rejected. The procedure for dealing with rejected products shall be set out in the manufacturer’s quality control plan.
4.4.2 Production control
The characteristics set out in DIN EN 1392-1 and in table 8 shall be tested as specified in table 8 to check for consistency of production conditions.
If a product fails to conform to a specification in table 8, a repeat test shall be carried out as specified in the quality control plan, and the certification body shall be informed.
If the product fails the repeat test, the manufacturing process shall be checked as specified in the quality control plan and modified as necessary, after which testing shall be carried out again.
Main Test Equipment to Cover This Norm
- Vicat Softening Pint VST
- Water Tightness Tester
- Air Tightness Tester
- Thermal Cycling Tester
- Falling Weight Impact Tester
- Oven for Lingitudinal Reversion Testing
- Resistance to Dichloromethane Tester
- Dimensional Measurement Equipment for Pipes and Fittings