Indisponible en français

Résumé Preview

ISO 12745:2008 provides guidelines to test for bias over a wide range of mass measurement techniques, to estimate the precision for each technique and to calculate the precision for wet mass when estimated by applying one of those techniques.

The guidelines are based on the application of statistical tests to verify that a mass measurement technique is unbiased, to estimate the variance as the most basic measure for its precision and to check the linearity of a static scale over its working range. Calibration methods and performance tests for compliance with applicable regulations generate test results that can be used to quantify precision and bias for each of these mass measurement techniques and to verify linearity for static weighing devices.

The guidelines apply to mass measurement techniques used to estimate the wet mass for cargoes or shipments of mineral concentrate as the basis for freight and insurance charges and for preliminary payments or for final settlements between trading partners.


Informations générales

  • État actuel :  Publiée
    Date de publication : 2008-10
  • Edition : 2
  • :
    ISO/TC 183
    Minerais et concentrés de cuivre, de plomb, de zinc et de nickel
  • 73.060.99
    Autres minerais métallifères

Acheter cette norme

Format Langue
PDF
Papier
  • CHF158

Vous avez une question?

Consulter notre FAQ

Service à la clientèle
+41 22 749 08 88

Horaires d’ouverture:
De lundi à vendredi - 09:00-12:00, 14:00-17:00 (UTC+1)

Suivez l'actualité de l'ISO

Inscrivez-vous à notre Newsletter (en anglais) pour suivre nos actualités, points de vue et informations sur nos produits.