Fans for general purposes. Tolerances, methods of conversion and technical data presentation1 Scope This International Standard specifies performance tolerances and the technical data presentation of industrial fans of all types. It does not apply for fans designed solely for low volume air circulation, such as those used for household or similar purposes (ceiling and table fans, extractor fans, etc.). For jet fans refer to ISO 13350. The upper limit of fan work per unit mass is normally 25 kJ kg1, corresponding to an increase of fan

and elastic cartilages

Two procedures are given

preparation and test procedure

but defects found in tests and issues found in general except for reviews are out of the scope of this document

— for non-pressure underground drainage and sewerage outside the building structure (application area code "U")

Aluminium foils sandwich method

sometimes with the addition of resistors

This British Standard is applicable to tanks constructed of plain carbon steel

• Annex A (informative) Categorization criteria

2 of Annex IV of the Machinery Directive

Annex H (normative) - Class FMT: Security management

Manufacturers of laboratory cutters