Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 1: G...
IEC 61937-1:2021 applies to the digital audio interface using the IEC 60958 series for the conveying of non-linear PCM encoded audio bitstreams.
It describes the way in which this digital interface can be used in consumer applications. The professional mode is not considered within the scope of this document.
IEC 61937-1:2021 cancels and replaces the second edition published in 2007, and…
Terrestrial photovoltaic (PV) modules - Design qualification and type approval - Part 1-1: Special r...
IEC 61215-1-1:2021 is available as IEC 61215-1-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61215-1-1:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. The useful service life of…
Terrestrial photovoltaic (PV) modules - Design qualification and type approval - Part 1: Test requir...
IEC 61215-1:2021 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 61215-1:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for…
Terrestrial photovoltaic (PV) modules - Design qualification and type approval - Part 1: Test requir...
IEC 61215-1:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. The useful service life of modules so qualified will depend on their design, their environment and the conditions under which they are operated. Test results are not construed as a quantitative prediction of module lifetime. This document…
Maize — Determination of moisture content (on milled grains and on whole grains)
This document specifies two methods:
- a reference method for the determination of the moisture content of maize grains and ground whole maize, groats, grits and maize flour, see Clause 4;
- a routine method for the evaluation of the moisture content of maize in whole grains, see Clause 5.
The latter is not suitable for use for experts' reports, or for calibration or checking of humidity…
Plastics — Polyethylene (PE) and polypropylene (PP) thermoplastics — Determination of metal content ...
This document specifies a method for the determination of metal content in polyethylene (PE) and polypropylene (PP) by inductively coupled plasma optical emission spectrometry (ICP-OES).
This document is applicable to the determination of the content of magnesium (Mg), aluminium (Al), calcium (Ca), zinc (Zn), chromium (Cr), titanium (Ti), iron (Fe), antimony (Sb), copper (Cu), lead (Pb), cadmium…
Leather — Chemical determination of formaldehyde content — Part 1: Method using high-performance liq...
This document specifies a method for the determination of free and released formaldehyde in leathers. This method, based on high-performance liquid chromatography (HPLC), is selective and not sensitive to coloured extracts and is intended to be used for precise quantification of formaldehyde.
The formaldehyde content is taken to be the quantity of free formaldehyde and formaldehyde extracted…
Fireworks — Test methods for determination of specific chemical substances — Part 9: Mercury content...
This document specifies the test method for the determination of the mercury content in pyrotechnic compositions by hydride generation atomic fluorescence spectrometry.
Fertilizers and soil conditioners — Mineral soil amendments — Determination of total calcium and mag...
This document establishes an overview of the relevant methods for the determination of calcium and magnesium as defined in ISO 8157.
This document is applicable to any mineral soil amendment, neutral, basic or acid containing calcium and/or magnesium.
Fireworks — Test methods for determination of specific chemical substances — Part 10: Nitrogen conte...
This document specifies the method for determination of the nitrogen content in nitrocellulose within pyrotechnic compositions of fireworks by iron(II) sulphate titration.
