Paints and varnishes — Determination of the percentage volume of non-volatile matter — Part 2: Metho...
This document specifies a method for determining the non-volatile matter by volume (NVV) of coating materials by determining the practical dry-film density. This method determines the volume percentage of non-volatile matter in paints, varnishes and related products by measuring the density of a dry coating for any specified temperature range and period of drying or curing. The non-volatile…
Information technology - Coding-independent code points - Part 4: Usage of video signal type code po...
This document describes common industry representation practices for the usage of video signal type code points, as these properties are conveyed across video content production and distribution carriage systems.
This document specifies Advanced Function Presentation (AFP) interchange as a container for document objects by defining the AFP file format [Mixed Object Document Content Architecture (MO:DCA)[1]]. It includes a means of identifying support for specifically including single and multi-page Portable Document Format (PDF) document objects as a container function set. It also includes a mechanism…
Rubber, raw natural, and rubber latex, natural — Determination of nitrogen content
This document specifies a macro-method and a semi-micro method for the determination of nitrogen in raw natural rubber and in natural rubber latex using variants of the Kjeldahl process.
NOTE The determination of nitrogen in natural rubber is usually carried out in order to arrive at an estimate of the protein content. Minor amounts of non-proteinous nitrogen containing constituents are…
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment fo...
IEC 61557-1:2019 is available as IEC 61557-1:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61557-1:2019 specifies the general requirements applicable to measuring and monitoring equipment for testing the electrical safety in low-voltage distribution systems with nominal voltages up…
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment fo...
IEC 61557-2:2019 is available as IEC 61557-2:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-2:2019 specifies the requirements applicable to equipment for measuring the insulation resistance of equipment and installations in the de-energized state IEC 61557-2:2019 cancels and…
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment fo...
IEC 61557-3:2019 is available as IEC 61557-3:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-3:2019 specifies the requirements applicable to equipment for measuring the loop impedance between a line conductor and protective conductor; between a line conductor and neutral; or between…
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment fo...
IEC 61557-4:2019 is available as IEC 61557-4:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-4:2019 specifies the requirements applicable to equipment for measuring the resistance of earth conductors, protective earth conductors and conductors for equipotential bonding, including…
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment fo...
IEC 61557-5:2019 is available as IEC 61557-5:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-5:2019 specifies the requirements applicable to measuring equipment for measuring the resistance to earth using an AC voltage. IEC 61557-5:2019 cancels and replaces the second edition…
