La présente Norme internationale spécifie une méthode de détermination de l'indice Kappa des pâtes. L'indice Kappa est une indication sur le degré de délignification (dureté) ou d'aptitude au blanchiment des pâtes. On doit noter qu'il n'y a pas de relation générale et précise entre l'indice Kappa et la teneur en lignine d'une pâte. La relation varie en fonction…
Personal eye-protectors — Filters and eye-protectors against laser radiation
Specifies requirements for spectacle filters and protectors within the spectral region 0,2 to 1000 micron. The work, which was staggered over several years, represents a basic study for which a majority consensus was reached at the international level. To take account of new developments and knowledge relating to lasers a revision of this standard will be undertaken.
Aluminium and aluminium alloys — Determination of titanium content — Diantipyrylmethane photometric ...
The method is applicable to products having titanium contents between 0,003 and 0,3 % (m/m). Specifies principle and procedure of the method, reagents, apparatus, sampling, expression of results and test report.
Applies to all kinds of unbleached pulp and is also appllicable for semi-bleached pulps. The Kappa number to be determined is known to be an indication of the bleachability.
The Standard specifies the following characteristics of the oil. Appearance: Clear, mobile liquid. Colour: Pale yellow to pale brownish yellow. Odour: Characteristic of oil of Ceylon citronella. Relative density at 20/20 °C: 0,894 - 0,910. Refractive index at 20 °C: 1,4790 - 1,4870. Optical rotation at 20 °C: Range from - 22 to - 12 . Miscibility with 80 % (V/V) ethanol at 20 °C: 1 : 2. Ester…
