Testing of concrete — Part 14: Setting time of concrete mixtures by resistance to penetration
This document covers the method for determining the setting time of concrete with slump greater than zero, by testing mortar sieved from the concrete mixture. The initial setting time and the final setting time are the time intervals required for the mortar sieved from the concrete mixture to reach the specified values of penetration resistance after the initial contact of cement and water.
The…
Photovoltaic devices - Part 4: Photovoltaic reference devices - Procedures for establishing calibrat...
IEC 60904-4:2019 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 60904-4:2019 sets the requirements for calibration procedures intended to establish the traceability of…
Photovoltaic devices - Part 4: Photovoltaic reference devices - Procedures for establishing calibrat...
IEC 60904-4:2019 is available as IEC 60904-4:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60904-4:2019 sets the requirements for calibration procedures intended to establish the traceability of photovoltaic (PV) reference devices to SI units as required by IEC 60904-2. This…
Textiles — Quantitative chemical analysis — Part 15: Mixtures of jute with certain animal fibres (me...
This document specifies a method, by determining the nitrogen content, to calculate the proportion of each component, after the removal of non-fibrous matter, in textiles made of mixtures of
— jute
with
— animal fibres.
The animal-fibre component can consist solely of hair or wool, or of any mixtures of the two.
This document is not applicable to products in which dyestuffs or finishes…
Textiles — Analyse chimique quantitative — Partie 15: Mélanges de jute avec certaines fibres animale...
This document specifies a method, by determining the nitrogen content, to calculate the proportion of each component, after the removal of non-fibrous matter, in textiles made of mixtures of
— jute
with
— animal fibres.
The animal-fibre component can consist solely of hair or wool, or of any mixtures of the two.
This document is not applicable to products in which dyestuffs or finishes…
Solid biofuels — Determination of total content of sulfur and chlorine
1 Scope
This International Standard describes methods for the determination of the total sulfur and total chlorine content in solid biofuels. This International Standard specifies two methods for decomposition of the fuel and different analytical techniques for the quantification of the elements in the decomposition solutions. The use of automatic equipment is also included in this International…
Plastics — Biobased content — Part 2: Determination of biobased carbon content
This document specifies a calculation method for the determination of the biobased carbon content in monomers, polymers, and plastic materials and products, based on the 14C content measurement.
This document is applicable to plastic products and plastic materials (e.g. plasticisers or modifiers), polymer resins, monomers, or additives, which are made from biobased or fossil-based constituents.…
Nuclear power plants - Control rooms - Human factors engineering
IEC TR 63214:2019 provides a summary of arguments and a technical basis for the development of a new Human Factors Engineering IEC standard and the alignment of IEC 60964. Based on the provided argumentation, the participating members will vote for such an approach. The proposed content of the new standard provides the basis for fruitful discussion within IEC SC 45A WG 8 and raises interest in…
Earth-moving machinery — Operator's manual — Part 1: Contents and format
This document specifies the contents of operator's manuals for earth-moving machinery as defined in ISO 6165, and gives guidance on how to structure such operator's manuals. It is intended to assist manufacturers of the machinery in the drafting and presentation of these manuals.
Manuals intended for use by service technicians are not within the scope of this document.
NOTE 1 Annex A…
