Energi- och värmeöverföring

This International Standard defines the activities related to refrigerating systems according to

EN 378-1, EN 378-2, EN 378-3, EN 378-4 and ISO 5149-1, ISO 5149-2, ISO 5149-3 and ISO 5149-4 and

the associated competence profiles and establishes procedures for assessing the competence of persons

who carry out these activities. Activities with regard to electricity are excluded.

NOTE As a refrigerating circuit is considered not to incorporate electrical and electronic systems, activities in

this area are not part of this standard. For competences on electrical and electronic systems, it is recommended to

refer to national regulations or appropriate European or national standards. This European Standard does not

apply to persons carrying out work on self-contained refrigerating systems as defined in EN 378-1 from the initial

design of the product to the complete manufacture of the product, provided the process is controlled and the

methods used are checked by an organisation or individual, responsible for the compliance with statutory

requirements on health, safety and environment (e.g. energy efficiency).

NOTE The standard is not a training programme .

This international standard describes methods for reducing combined samples (or increments) to laboratory

samples and laboratory samples to sub-samples and general analysis samples and is applicable to solid

biofuels.

The methods described in this international standard may be used for sample preparation, for example, when

the samples are to be tested for calorific value, moisture content, ash content, bulk density, durability,

particle size distribution, ash melting behaviour, chemical composition, and impurities.