ISO 5940:1981
Withdrawn
View Superseded by
Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of softening point by the ring-and-ball method
Hardcopy , PDF
English, French
05-01-1981
04-09-2025
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.
| Committee |
ISO/TC 226
|
| DevelopmentNote |
Also numbered as BS 6043-1.3(1983) (09/2005)
|
| DocumentType |
Standard
|
| Pages |
5
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| PN ISO 5940 : 1997 | Identical |
| NF ISO 5940 : 1986 | Identical |
| NBN T 03 477 : 1984 | Identical |
| ISO 6257:2002 | Carbonaceous materials used in the production of aluminium — Pitch for electrodes — Sampling |
| BS 6043-1.1:2002 | Methods of sampling and test for carbonaceous materials used in aluminium manufacture. Electrode pitch Sampling - Section 1.1: Sampling |
| BS EN 14261:2003 | Derivatives from coal pyrolysis. Coal tar and pitch based binders and related products. Refractory binders. Characteristics and test methods |
| EN 14261:2003 | Derivatives from coal pyrolysis - Coal tar and pitch based binders and related products : refractory binders - Characteristics and test methods |
| DIN EN 14261:2003-12 | Derivatives from coal pyrolysis - Coal tar and pitch based binders and related products: Refractory binders - Characteristics and test methods; German version EN 14261:2003 |
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