Classification of environmental conditions. Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Ground vehicle installations Ingestion-build-64721 Carrying out the tests

Carrying out the tests

BS 5395-2 also gives guidance on the geometry of helical and spiral stairs

and evaluating the loss due to contraction or expansion

BS EN 993-18 specifies a method based on water absorption with vacuum for the determination of the bulk density of granular refractory materials (grain bulk density) having a grain size greater than 2 mm

Classification of environmental conditions. Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Ground vehicle installations Ingestion-build-64721 Carrying out the tests1 Scope and object This part of IEC 60721 is a technical report dealing with the correlation and transformation of the conditions given in IEC 6072135 to the environmental tests defined in IEC 600682. An environment may consist of a number of environmental conditions such as dynamic, climatic and biological and other effects due to chemically and mechanically active substances. In this report, only dynamic and climatic conditions have been considered.