ISO metric screw threads - Principles and basic dataThis part of BS 3643 gives a compilation of principles and basic data for single start, parallel screw threads having the ISO basic profile for triangular screw threads. The clauses in this standard have been so arranged that each relates directly to the relevant ISO standard. Each clause maintains as far as possible the ISO format, to enable direct cross reference with the ISO standards. BS 3643 1: 2007 contains: Terms and definitions and symbols

Laying out a new principle for a risk-based approach

A mechanical stability and static balance test

organizations or contracting parties

Annex B (normative) Uncertainty of measurement and interpretation of results

and it is here that the knowledge required in carrying out and managing ecodesign is to be found

29 X-radiation

• discharge systems and types of waste containers

The test entails measuring the pumped discharge as well as the water level in the test well and piezometers as a function of time before

for employees undertaking work in a secure environment

with specified low temperature properties

which are also available with special edge and surface treatment (tongue and grooves

a selection of needed security services and a description of a common set of application independent security mechanisms