Space systems. Magnetic testingWhat is ISO 21494 Magnetic testing about ? ISO 21494 specifies magnetic test methods including magnetic field test methods, magnetic moment test methods, magnetization, and demagnetization test methods, and magnetic compensation test methods. ISO 21494 applies to magnetic tests on several levels: Spacecraft level Subsystem level Unit level ISO 21494 gives guidelines for conducting magnetic tests both in a zero magnetic field environment provided by

Types of two-hand control devices and their selection

Requirements for alarm transmission systems and equipment using the Public Switched Telephone Network

While primarily intended for organizations in the private sector

Methods for the assessment of human responses to contact with surfaces

References to the availability of secondary zinc supply

and intermediate processing of raw materials) and ferrous scrap (recovered from both the manufacturing process and the end of life of final products)

it may be useful to include cross-references to clauses in this standard where applicable to facilitate compliance checking by auditors and business partners

Removal of Annex B (now published separately as BS 8491)

Process review (review and recalibrate)

Developing the innovation management process

The limits in BS EN 61000-3-3 relate to the voltage changes experienced by consumers connected at the interface between the public supply low-voltage network and the equipment user’s installation

3 Leak test on minimum and maximum pressures of compressed air for pneumatic valve