Semiconductor devices. Discrete devices - Bipolar transistors1 Scope This part of IEC 607477 gives the requirements applicable to the following sub categories of bipolar transistors excluding microwave transistors. Small signal transistors (excluding switching and microwave applications); Linear power transistors (excluding switching, high frequency, and microwave applications); High frequency power transistors for amplifier and oscillator applications; Switching transistors for high speed switching and power

It applies to general engineering uses and cases where castings are joined by welding by the founder

BS 5106 on ‘spiral anti-extrusion back-up rings’ is useful for:

failure of which may cause an emission of radioactivity

BS 2059 recommends the adoption of serrations or involute splines in those cases where multi-splines have been in use

The elastic behaviour of an adhesive is of great practical significance

The standard has been substantially revised to improve clarity and tighten up the safety recommendations

Why should you use BS 4789 - Ceramic components

using short link grade 4 medium tolerance chain conforming to EN 818‑3:1999+A1 together with the appropriate range of components of the same grade in accordance with EN 1677‑5:2001+A1 and -6:2001+A1

Occupational health and safety departments

BS 8521-2 specifies requirements for the transfer of information and control signals between social alarm equipment used in specialized group living environments and alarm receiving centres (ARC’s)

Often the different quantities are interconvertible and examples of such interconvertibility are given in Annex C

Why should you use BS EN 62822-2 - Assessment of restrictions related to human exposure to electromagnetic fields