Specification for engineers' comparators for external measurementWhat is BS 1054 Specification for engineers comparators about? BS 1054 is an International Standard that discusses the technical specifications for engineers comparators for external measurement. BS 1054 specifies requirements for comparators having magnification factors of 250 and over. BS 1054 describes the type of comparator to which the requirements are primarily intended that applies an instrument comprising a rigid stand that supports a

Technical product designers

Get better results from consultancy projects

Manufacturers of agricultural tractors

PD ISO/TR 12859:2009 Intelligent transport systems

commercially pure

— Requirements for numbering

It sets out the specifications like energy performance requirements

Examples of the application of the classification scheme are given

Repeatable results are obtained for insert earphones with high acoustic damping (used for instance in the extended high-frequency audiometry

BS EN 3831 on thickwall inserts is useful for:

accessories and their joints for the construction of drains and sewers outside buildings:

Dual-purpose air conditioning appliances (heating and cooling)