Q52;E43 标准查询与下载
共找到 9 条与 相关的标准，共 1 页
이 시험방법은 피치 중 퀴놀린 불용성 물질(QI)의 함량을 측정하는 일반적인 중량법이다.
Determination of quinoline－insoluble(QI) material of pitch
- ICS
- 71.100.10
- CCS
- Q52;E43
- 发布
- 2007-11-28
- 实施
- 2007-11-28
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Carbonaceous materials used in the production of aluminium-Pitch for electrodes-Determination of ash
- ICS
- 71.100.10
- CCS
- Q52;E43
- 发布
- 2003-12-20
- 实施
- 2003-12-20
이 규격은 알루미늄 제조용 피치 중의 톨루엔 불용성 물질의 함량을 측정하는 중량법에 대
Carbonaceous materials for the production of aluminium－Pitch for electrodes－Determination of content of toluene-insoluble material
- ICS
- 71.100.10
- CCS
- Q52;E43
- 发布
- 2003-12-20
- 实施
- 2003-12-20
이 규격은 알루미늄 제조용 피치의 연화점(연화 온도) 측정을 위해서 환구(ring-an
Carbonaceous materials for the production of aluminium－Pitch for electrodes－Determination of softening point by the ring-and-ball method
- ICS
- 71.100.10
- CCS
- Q52;E43
- 发布
- 2003-12-20
- 实施
- 2003-12-20
A test portion is deated in a tared platinum crucible, in a furnace at 700 degrees centigrade, under oxidizing and specified conditions, to constant mass. The residue is cooles and weighed. The method is applicable to products (tar pitch, petroleum pitch, etc.) producing a quality of ash greater than or equal to 0,05 % (m/m).
Carbonaceous materials used in the production of aluminium; Pitch for electrodes; Determination of ash
- ICS
- 71.100.10
- CCS
- Q52;E43
- 发布
- 1985-09
- 实施
Specifies a conventional gravimetric method for the determination. A test portion ist reated with quinoline in a beaker at 70 to 80 鳦 for 15 to 20 min. Then the dissolved test portion and the residue are brought to a Hartley funnel fitted with a filter pad, and are filtered. The washed and dried residue on the filter pad is weighed.
Carbonaceous materials for the production of aluminium; Pitch for electrodes; Determination of contents of quinoline-insoluble material
- ICS
- 71.100.10
- CCS
- Q52;E43
- 发布
- 1981-11
- 实施
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.
Carbonaceous materials for the production of aluminium; Pitch for electrodes; Determination of softening point by the ring-and-ball method
- ICS
- 71.100.10
- CCS
- Q52;E43
- 发布
- 1981-05
- 实施
Specifies a gravimetric method, the principle of which consists in weighing the fraction of a test portion of pitch which is insoluble in toluene after boiling for a specified period.
Carbonaceous materials for the production of aluminium; Pitch for electrodes; Determination of content of toluene-insoluble material
- ICS
- 71.100.10
- CCS
- Q52;E43
- 发布
- 1980-11
- 实施
Describes a method comprising the heating of the pitch under reflux with xylene, collection in a receiver of the condensate of xylene and water and measurement of the volume of water which separates out in the graduated part of the receiver. Applies to pitches having water contents in the range between 0,1 and 2 % (m/m).
Carbonaceous materials for the production of aluminium; Pitch for electrodes; Determination of water content; Azeotropic distillation (Dean and Stark) method
- ICS
- 71.100.10
- CCS
- Q52;E43
- 发布
- 1980-07
- 实施
