ISO/TS 15855:2025
(Main)Copper, lead and zinc sulfide concentrates — Step-by-step procedure for the testing of static scales
Copper, lead and zinc sulfide concentrates — Step-by-step procedure for the testing of static scales
This document specifies simple procedures to check the performance and calibration status of static scales. The test sequence is applicable to routine applications, generating results which can be used to calculate explicit scale performance parameters (precision, bias and linearity) in accordance with the relevant formulae shown in ISO 12745.
Concentrés sulfurés de cuivre, de plomb et de zinc — Procédure pas à pas pour les essais des bascules statiques
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Standards Content (Sample)
Technical
Specification
ISO/TS 15855
First edition
Copper, lead and zinc sulfide
2025-01
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
Reference number
© ISO 2025
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Contents Page
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
6.4 Determining the precision of platform scales by replicate tests .2
7 Calibration (bias and linearity test) procedures . 3
7.1 General .3
7.2 Calibration procedure using a single certified test weight .3
7.3 Calibration procedure using a set of certified test weights .3
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
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with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 183, Copper, lead, zinc and nickel 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”.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
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Technical Specification ISO/TS 15855:2025(en)
Copper, lead and zinc sulfide concentrates — Step-by-step
procedure for the testing of static scales
1 Scope
This document specifies simple procedures to check the performance and calibration status of static scales.
The test sequence is applicable to routine applications, generating results which can be used to calculate
explicit scale performance parameters (precision, bias and linearity) in accordance with the relevant
formulae shown in ISO 12745.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 12745:2008, Copper, lead and zinc ores and concentrates — Precision and bias of mass measurement
techniques
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12745:2008 apply.
ISO and IEC maintain terminology d
...
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