NF S81-520-1

NF S81-520-1

June 1996
Standard Cancelled

Horology. Antimagnetic watches. Part 1 : common use.

Le présent document décrit une méthode de contrôle destinée aux montres "antimagnétiques" de type mécanique d'usage courant.

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Main informations

Collections

National standards and national normative documents

Publication date

June 1996

Number of pages

4 p.

Reference

NF S81-520-1

ICS Codes

39.040.10   Watches

Classification index

S81-520-1

Print number

1 - 01/07/1996

International kinship

ISO 764:1984
Sumary
Horology. Antimagnetic watches. Part 1 : common use.

Le présent document décrit une méthode de contrôle destinée aux montres "antimagnétiques" de type mécanique d'usage courant.
Replaced standards (1)
NF S81-520
December 1970
Standard Cancelled
Horology. General purpose anti-magnetic watches.

Standard replaced by (1)
NF ISO 764
May 2003
Standard Cancelled
Horology - Magnetic resistant watches

ISO 764 specifies the minimum requirements and test methods for magnetic resistant watches. It is based on the simulation of an accidental exposure of a watch to a direct current magnetic field of 4 800 A/m. Annex A deals with watches designated as magnetic resistant with an additional indication of intensity of a magnetic field exceeding 4 800 A/m.

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