Woodworking machines — Single chain mortising machines — Nomenclature and acceptance conditions
Specifies geometrical tests for single chain mortising machines for general purpose use and normal accuracy, gives the corresponding permissible deviation and furthermore the nomenclature appropriate to each part of the machine in English and French as well as the equivalent terms in German, Spanish, Italian and Swedish. It deals only with the verification of the accuracy of the machine. It does…
Fromages et fromages fondus — Détermination de la matière sèche (Méthode de référence)
La présente Norme internationale spécifie la méthode de référence pour la détermination de la matière sèche des fromages et fromages fondus. Elle ne peut pas être applicable aux préparations de fromages fondus, telles qu'elles sont définies dans les normes pour le lait et les produits laitiers élaborées par la Commission du Codex alimentarius FAO/OMS, n° A-8 (c).
Ammonia solution for industrial use — Determination of ammonia content — Titrimetric method
A test portion is introduced into a solution of boric acid and the solution obtained is titrated with a standard volumetric solution of sulfuric acid in the presence of methyl red as indicator. The method is applicable to solutions containing not more than 35 % (m/m) of ammonia.
Liquefied anhydrous ammonia for industrial use — Determination of water content — Karl Fischer metho...
A test portion is evaporated in the presence of ethanediol and the water content of the residue is determined by the Karl Fischer method with direct electrometric measurement. The method is applicable to products having water contents equal to or greater than 50 mg/kg. For water contents greater than 1000 mg/kg it is preferable to dilute the evaporation residue with anhydrous methanol in…
