BS 90:1975

Specification for direct-acting electrical recording instruments and their accessories.

NORMA vydána dne 28.2.1975

Anglicky -
PDF - okamžité stažení (8538.30 CZK)

Informace o normě:

Označení normy: BS 90:1975
Datum vydání normy: 28.2.1975
Počet stran: 50
Přibližná hmotnost: 150 g (0.33 liber)
Země: Britská technická norma
Kategorie: Technické normy BS

Anotace textu normy BS 90:1975 :

Defines and classifies accuracy classes, methods of determining intrinsic error and variations for measured quantity and time-keeping, lists influence quantities, electrical and mechanical requirements, marking requirements and symbols. Concept used and effect of friction between marking device and chart explained in appendices. Status: Confirmed