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ISO 5940:1981

Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of softening point by the ring-and-ball method
1. 5. 1981.
95.99   Povučen   3. 10. 2019.

Опште информације

95.99     3. 10. 2019.

ISO

ISO/TC 226

Međunarodni standard

71.100.10  

francuski   engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

Specifies a method using a disc-shped test piece to be prepared by moulding a test portion ina ring which is fitted into a heated bath. A steel ball is placed on the upper surface of the test piece. Then the temperature (softening temperature) is determined at which the test piece, on heating at a prescribed rate, softens sufficiently to sag to a specifeid depth under the mass of the ball. Details on the thermometers to be used and information on the melting of pitch samples are included in two annexes.

Životni ciklus

TRENUTNO

POVUČEN
ISO 5940:1981
95.99 Povučen
3. 10. 2019.

REVIDIRAN OD

OBJAVLJEN
ISO 5940-1:2019