Produits carbonés utilisés pour la production de l'aluminium — Brai pour électrodes — Détermina...
La présente Norme internationale spécifie une méthode pycnométrique de détermination de la masse volumique du brai employé pour la préparation des électrodes utilisées dans l'industrie de l'aluminium.
Volatile organic liquids for industrial use — Determination of distillation characteristics
Relates to liquids (excluding petroleum products) having a boiling point in the range 30 °C to 300 °C and are stable during distillation in atmospheric conditions. Specifies also the distillation apparatus. The principle consists in a) distillation of a test portion under carefully defined conditions in order to determine the temperature corresponding to the condensate volumes defined (plotting…
Emballages — Sacs — Vocabulaire et types — Partie 1: Sacs en papier
La présente partie de l'ISO 6590 définit les termes communément utilisés dans l'industrie du sac en papier. Elle est applicable à des sacs en papier à grande contenance, simples ou multicouches, et non à des sacs pour le commerce de détail.
Solvent acetates for industrial use — Methods of test
Gives general instructions and specifies methods of analysis for these chemical products. The methods are the following: determination of density at 20 °C; determination of dry residue after evaporation on a water bath; measurement of colour; determination of distillation characteristics; determination of water content; determination of acidity; and determination of ester content (titrimetric…
Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use — Methods of tes...
The test may be carried out on products as received or on a dried sample. The method specified in ISO 2208 shall be applied for drying. The principle of the method consists in cooling the liquid or liquefied test portion and observation of the temperature during crystallization under defined conditions. A simplified crystallization point apparatus is given in the figure. It takes into account the…
Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use — Methods of tes...
The method is applicable to products having high cresol contents. The principle consists in distillation of a test portion inder carefully defined conditions. Either determination of the temperatures corresponding to the condensate volumes defined or determination of the volume condensate when the thermometer indicates each of the distillaton temperatures (i.e. plotting temperature as a function…
Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use — Methods of tes...
Applicable to products having a high o-cresol content and a high m-cresol content. The principle consists in distillation of a tast portion under carefully defined conditions and determination of the mass of residue obtained. The distillation is carried out according to ISO 918. When all the water has distilled over, continue the distillation without intermediate measurements, until either the…
Acetic acid for industrial use — Methods of test — Part 3: Determination of formic acid content — Io...
Specifies the determination of total reducing matter and of reducing compounds other than formic acid. The principle consists in oxidation of formic acid and other reducing compounds in a test portion with an excess of sodium hypobromit solution. Determination of the excess sodium hypobromite by iodometry. Oxidation of reducing compounds other than formic acid with an excess of potassium bromide-…
