Information and documentation. International standard technical report number (ISRN)

Preparation of extracts

surface distress and burnishing or glazing

safetyvalves and bursting disc safety devices in combination

The requirement for water content has been made more stringent and the requirement for relative density has been replaced by one for density at 20 °C

Electrical hazards

BS 7562-2 identifies basic site data which need to be acquired and analysed to enable the designer

validation and operation

microtunnelling or other trenchless technology

BS EN 1621‑3 contains the requirements for the performance of the protectors under impact and details of the test methods

5 Effect of internal stresses in the basis steel

Its weight and admissibility as evidence can be influenced by:

Uniformity and diversity