European Committee For Electrotechnical Standardisation

European Communities are presumed by Member States to comply with those aspects of the essential requirements that are covered by the standard. Harmonised standards are those adopted by the EC standards bodies pursuant to a mandate issued by the Commission, in this case the European Committee for Standardisation (CEN) and the European Committee for Electrotechnical Standardisation (CENELEC). A large number of standards are contemplated but may take time to be written and adopted. Standards may be horizontal (covering aspects common to all or a number of product types) or vertical (dealing only with a specific aspect or specific product type). Important harmonised standards exist on the following ... 

European Committee for Electrotechnical Standardisation. Continuous quantity. 

The standards for electrical equipment for use in flammable atmospheres are affected by the harmonisation processes of the EEC, CENELEC (European Committee for Electrotechnical Standardisation) and the lEC (International Electrotechnical Committee). 

As soon as European standards applicable to the LVD are published (the majority by the European Committee for Electrotechnical Standardisation (CENELEC) or the European Telecommunications Standards Institute (ETSI)) they may be used to demonstrate conformity with the LVD, the title is then published in the European Official Journal (OJ) for information. With all other NA directives, the application of a standard is dependant on its title firstly being published in the OJ. The European Commission has no effective control over the standards bodies. This raised concerns that if a standard was proved to be defective it would be difficult to block its use, certainly within a short time firame because of the difficulties in withdrawing standards. Aligning the LVD with the other NA directives would permit better control through the use of the OJ. The use of international standards (Article 6) and national standards (Article 7) has also come into question. In this... 

The relevant standards have been affected by the standard harmonisation process within the EU through the European Committee for Electrotechnical Standardisation (CENELEC) and through the International Electrotechnical Commission (lEC). Individual parts of BS EN 60079 deal with different aspects concerning electric apparatus for potentially explosive gas atmospheres, namely classification of hazardous areas, electrical installations in hazardous areas (other than mines) and inspection and maintenance of electrical installations in hazardous areas (other than mines). BS 50014 covers general requirements. 

The safety requirements shall be identical worldwide and must be standardized internationally. This is provided by the lEC (International Electrotechnical Commission). Within Europe national standards can form trade barriers, which must be harmonized. This work is done by CENELEC (European Committee for Electrotechnical Standardisation). Actually the safety standards for stationary batteries and battery installations are being drafted to become a European Norm. The norms for traction batteries and portable batteries will follow. 

In 1999, a Working Group on Instrumentation in Electrochemical Analysis (WG 5) was created by the Technical Committee - Laboratory Equipment of the European Committee for Standardisation (CEN/TC 332). The standard relates to requirements for how to establish traceability between pH measurements performed by the user and the primary reference method using hydrogen electrodes. The revised IUPAC draft for pH is intended to serve as a basis for the new European standard on pH. It has been clearly stated that this standardisation work will not duplicate the work already completed by IUPAC or by the International Electrotechnical Commission (IEC). 

---