NF C97-420
NF C97-420

NF C97-420

May 1980
Standard Current

Electro-acoustics. High fidelity equipments and systems. Amplifiers. Requirements.

Main informations

Collections

National standards and national normative documents

Publication date

May 1980

Number of pages

6 p.

Reference

NF C97-420

ICS Codes

33.160.10   Amplifiers

Classification index

C97-420

Print number

1 - juillet 1977

International kinship

IEC 60581-6:1979
Replaced standards (1)
NF C97-420
NF C97-420
May 1977
Standard Cancelled
Electro-acoustics. High fidelity equipements and systems amplifiers. Requirements.

ZOOM ON ... the Requirements department

To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:

  • mandatory clauses to satisfy,
  • non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document "ISO/IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents" as well as on a constantly enriched list of verbal forms.

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