ISO/DTS 15855

ISO/TS DTS 15855:2024
ISO/TC 183/WG 9
Secretariat: SA
Date: 2024-06-0527
Copper, lead and zinc sulfide concentrates — Step-by-step procedure
for the testing of static scales
Concentrés sulfurés de cuivre, de plomb et de zinc — Procédure pas à pas pour les essais des bascules statiques

DTS stage
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Contents
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General information . 1
5 Frequency of testing . 1
6 Precision test procedures . 2
6.1 General . 2
6.2 Determining the precision of weighbridges by replicate tests . 2
6.3 Determining the precision of hopper scales by replicate tests . 2
7 Calibration (bias and linearity test) procedures . 2
7.1 General . 2
7.2 Calibration procedure using a single certified test weight . 2
7.3 Calibration procedure using a set of certified test weights . 3
Bibliography . 4

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Foreword
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This document was prepared by Technical Committee ISO/TC 183, Copper, lead, zinc and zincnickel ores and
concentrates.
This first edition cancels and replaces ISO/TR 15855:2001, which has been technically revised.
The main changes are as follows:
— in 7.2 e), “a total approximately equal to half the scale capacity” has been changed to “a total approximately
equal to full-scale capacity less the certified weight”.
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Introduction
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