Standards & Specifications

B7 - Quality Management & Control

In traditional British (BS) Standards, the evaluation of compliance levels was covered by the contractual arrangements between the producer of the mixture and the customer.  BS EN Standards are different.  They contain requirements for ‘evaluation of conformity’.

Evaluation of conformity covers the detailed procedures that a producer must follow to demonstrate that the mixture complies with the requirements of the Construction Products Directive. 

The procedures must be followed by all producers.  They demonstrate conformity with the relevant parts of BS EN 13108 and apply whether or not CE marking is being done.

Guidance about how the evaluation of conformity is applied in the UK is given in:

• PD 6691 Asphalt – Guidance on the use of BS EN 13108. Bituminous Mixtures, Material specifications

Full details are given in two BS EN Standards:

• BS EN 13108-20 Bituminous mixtures.  Material specifications.  Part 20: Type testing
• BS EN 13108-21 Bituminous mixtures.  Material specifications.  Part 21: Factory production control.

Evaluation of conformity requires testing.  The test methods are published as:

• BS EN 12697 Bituminous mixtures.  Test methods for hot mix asphalt

BS EN 12697 is published in more than forty different Parts.

Guidance about the use of the long list of test methods is given in:

• PD 6692 Asphalt – Guidance on the use of BS EN 12697. Bituminous Mixtures, Test methods for hot mix asphalt

BS EN 12697 will replace most Parts of:

• BS 598 Sampling and examination of bituminous mixtures for roads and other paved areas.  (Part 100 to Part 112)