What is BS 2011-2.2KD - Environmental testing for contacts and connections about?
BS 2011-2.2KD is a standard that covers environmental testing for contacts and connections, enabling the detection of tarnishing in contacts and connections.
BS 2011-2.2KD is specifically intended for certain types of contacts and connections. Contacts and connections are divided into two types and could be described as permanent or temporary. In both cases, metal surfaces are held together by an external force.
BS 2011-2.2KD test has been devised to assess the consequence of tarnishing of silver and some of its alloys. It has been largely validated by laboratory and field tests on silver, though limited tests have also been carried out on components with contacts of some silver alloys.
When the BS 2011-2.2KD test is used for contacts and connections involving silver alloys and silver in conjunction with other materials the test is expected to give more realistic results for those involving silver together with a more precious metal than it will for silver alloys involving significant quantities of base metals.
Note 1: Gold contacts are largely unaffected by the test.
Note 2: Contacts involving gold layers over silver or gold contacts near silver will be affected owing to the phenomena of creeping silver sulphide.
Note 3: Copper and alloys containing a high percentage of copper are heavily tarnished in the test atmosphere owing to the formation of copper sulphides.
Who is BS 2011-2.2KD - Environmental testing for contacts and connections for?
BS 2011-2.2KD on environmental testing for contacts and connections applies to:
- Environmental testing agencies
- Manufacturers of contacts and connections
- Dealers and importers of contacts and connections
- Testing personnel and inspectors
- Testing labs for contacts and connections
Why should you use BS 2011-2.2KD - Environmental testing for contacts and connections?
Satisfactory performance during the desired lifetime of contacts and connections depends on many parameters, some of them determined by their design (type, materials, forces, etc.) and others by the environment in which they must function.
BS 2011-2.2KD provides users guidance on the distribution of hydrogen sulphide measurements and representative concentrations of hydrogen sulphide at a range of sites in different locations and weathers.
BS 2011-2.2KD provides users guidance on hydrogen sulphide in the atmosphere, object of test, parameters of test, severity of test, evaluation of results, and specifications, enabling the implementation of environmental testing for quality, performance and durability of contacts and connections.
With obedience and compliance to BS 2011-2.2KD, users can perform environmental testing with hydrogen sulphide for contacts and connections, enabling the determination of the impact of tarnishing of silver and its alloys that is a product of polluting substances.
