Rare earth — Determination of rare earth content in individual rare earth metals and their oxides — ...
This document specifies a titration method for the determination of rare earth content in 15 kinds of individual rare earth metals (lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium) and their oxides.
The determination ranges for the rare earth content in mass fraction are as follows:
— …
Power quality management - Part 100: Impact of power quality issues on electrical equipment and powe...
IEC TR 63222-100:2023, which is a Technical Report, collects relevant information on power quality impacts from, e.g., CIGRE reports, case studies, research findings, etc., in order to uncover the mechanisms of how electrical equipment/installations/system are impacted by power quality disturbances, as well as to fully understand the guidelines for power quality management. The contents of this…
Meat and meat products — Determination of moisture content — Reference method
This document specifies two reference methods for the determination of the moisture content of meat and meat products: a direct drying method and a distillation method.
The direct drying method is applicable to meat and meat products with low volatile substances in addition to moisture.
The distillation method is applicable to meat and meat products with high volatile substances in addition to…
Safety of machinery – Electro-sensitive protective equipment - Part 5: Particular requirements for r...
IEC TS 61496-5:2023 provides particular requirements for the design, construction and testing of non-contact electro-sensitive protective equipment (ESPE) designed specifically to provide whole-body detection of a person or persons as part of a safety-related system, employing radar protective devices (RPDs) responsive to diffuse reflection of radar signals for the sensing function using…
Corrigendum 1 - High-voltage switchgear and controlgear - Part 202: AC prefabricated substations for...
IEC 62271-202:2022 specifies the service conditions, rated characteristics, general structural requirements and test methods of enclosed high-voltage prefabricated substations. These prefabricated substations are cable-connected to AC high-voltage networks with an operating voltage up to and including 52 kV and power frequencies up to and including 60 Hz. They can be manually operated from inside…
2 SCOPE
This standard applies to any products containing a claimed recycled plastic content of at least 5%, which is either credited according to the Chain of Custody (CoC) mass balance model or actual physical recycled content.
This standard is not intended to determine the mechanical, physical and chemical qualities and properties of a product, nor the adequacy of the product’s constraint…
Communication networks and systems for power utility automation - Part 90-7: Object models for power...
IEC TR 61850-90-7:2023 is available as IEC TR 61850-90-7:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC TR 61850-90-7:2023, which is a Technical Report, describes functions for power converter-based distributed energy resources (DER) systems, focused on DC-to-AC and AC-to-AC conversions…
Winding wires - Test methods - Part 3: Mechanical properties
IEC 60851-3:2023 is available as IEC 60851-3:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60851-3: 2023 specifies the following test methods for winding wires:
- Test 6: Elongation;
- Test 7: Springiness;
- Test 8: Flexibility and adherence;
- Test 11: Resistance to abrasion;
-…
Jewellery and precious metals — Determination of very high purity gold — Difference method using ICP...
This document specifies an analytical procedure for the determination of very high purity gold with a nominal content of and above 999,99 ‰ (parts per thousand, by mass), using an inductively coupled plasma mass spectrometer (ICP-MS).
