Hlavní oblasti

This document provides general definitions for sample collection and preparation of a representative sample based on a sampling plan for the purpose of determining dimensions and impurities.
 

This document specifies references to methods for the determination of the content of the following specific nutrients in inorganic fertilizers:
— the total nitrogen content;
— the ammoniacal nitrogen content;
— the nitric nitrogen content;
— the urea nitrogen content;
— the content of nitrogen from isobutylidenediurea (IBDU) and crotonylidenediurea (CDU);
— the cyanamide nitrogen content;
— the methylene-urea nitrogen content (and urea formaldehyde, if applicable);
— the total phosphorus content;
— the water-soluble phosphorus content;
— the neutral ammonium citrate soluble phosphorus content;
— the formic acid soluble phosphorus content;
— the total potassium content;
— the water-soluble potassium content;
— the total magnesium content;
— the water-soluble magnesium content;
— the total calcium content;
— the water-soluble calcium content;
— the total sulfur content;
— the water-soluble sulfur content;
— the total sodium content;
— the water-soluble sodium content.
This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard
methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

This document specifies the measurement of dimensional change of set cementitious and calcium sulfate-based floor levelling compounds after mixing with a liquid, e.g. water.
This document applies to cementitious and calcium sulfate-based floor levelling compounds used for the preparation of subfloors to ensure the suitability of the substrate prior to the installation of floor coverings. By using the floor levelling compound, a homogeneous layer is built up on the load-bearing substrate, to ensure consistent absorbency, evenness and strength.

This document specifies the procedure for mixing cementitious and calcium sulfate-based floor levelling compounds with water and/or a liquid component as supplied by the manufacturer.
This document applies to cementitious, and calcium sulfate-based floor levelling compounds used for the preparation of subfloors to ensure the suitability of the substrate prior to the installation of floor coverings. By using the floor levelling compound, a homogeneous layer is built up on the load-bearing substrate, to ensure consistent absorbency, evenness and strength.

This document specifies a method for the determination of the chloride content in organic fertilizers, organo-mineral fertilizers, inorganic fertilizers and liming materials by potentiometric titration.
This document is applicable to fertilizing product blends, where a blend is a mix of at least two of the following components, fertilizers and liming materials, and where the following category, organic fertilizers, organo-mineral fertilizers, inorganic fertilizers or liming materials, is the highest % in the blend by mass or volume, or in the case of liquid form, by dry mass.
If organic fertilizers, organo-mineral fertilizers, inorganic fertilizers, or liming materials is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply.
NOTE Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

This document specifies two different methods (Method A and B) for the determination of the content of potassium (expressed as K2O) in inorganic fertilizers. Method A specifies a gravimetric method. Method B specifies the method using inductively coupled plasma optical emission spectrometry (ICP-OES).
This document is applicable to fertilizing product blends, where the blend is a mix of at least two of the following components, fertilizers, liming materials, soil improvers, growing media, inhibitors and plant biostimulants, and where inorganic fertilizers are the highest % in the blend by mass or volume, or in the case of liquid form, by dry mass.
If inorganic fertilizers are not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply.
NOTE Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

This document specifies references to the methods for the determination of urease inhibiting compounds in organo-mineral fertilizers.
This document is applicable to fertilizing product blends where the blend is a mix of at least two of the following components: organic fertilizers and inorganic fertilizers to which urease inhibitors have been added.
This document is not applicable to fertilizing product blends containing liming materials, soil conditioners, growing media or biostimulants.

This document specifies a method for the extraction and determination of phosphonates (P-PO3) in fertilizers, liming materials and inhibitors using ion chromatography and conductivity detection (IC-CD).
This document is applicable to fertilizing product blends, where the blend is a mix of at least two of the following components, fertilizers, liming materials, soil improvers, growing media, inhibitors and plant biostimulants, and where the following category, fertilizers, liming materials and inhibitors, is the highest % in the blend by mass or volume, or in the case of liquid form, by dry mass.
If fertilizers, liming materials and inhibitors is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply.
NOTE Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

This document specifies the requirements and test methods applicable to factory applied external polyurethane based coatings for heavy duty (see EN 545:2010, Clause D.3) corrosion protection of buried ductile iron pipes in accordance with EN 545, EN 598 and EN 969 for use at operating temperatures up to 50 °C.
This document is not applicable to ductile iron pipes protected with zinc with a finishing layer of polyurethane.
This document is not applicable to special activities on site such as tapping, clamping, etc., which could affect the corrosion protection properties of the polyurethane coating.
NOTE These operations are usually specified in the laying instructions supplied by manufacturers of clamps, house connection saddles, etc. and any relevant user procedures.

This document specifies the requirements and tests for the construction, performance, safety and conformity of conversion devices used to determine the energy of fuel gases described in the Table 1, including those of the 1st and 2nd families according to EN 437.
It is also applicable for treated non-conventional combustible gases complying with EN 437 and for which a detailed technical evaluation of the functional requirements (such as injected biomethane) is performed ensuring there are no other constituents or properties of the gases that can affect the metrological and physical integrity of the measuring systems.
This document mentions technical topics to consider when hydrogen and natural gas / hydrogen blends flow through the measuring systems.
This document can also be used as a guideline for measuring systems for other gases e.g. gaseous CO2 for CCUS.
This document is not applicable for raw or sour gases.
This document is not applicable for gas measurement in CNG filling stations.
The energy conversion device (ECD) considered in this document consists of an energy calculator (EC) and is associated with the following devices and/or functions:
— a volume conversion device (VCD) or a flow computer used as gas meter conversion, either conforming to EN 12405-1:2021, or to EN 12405-3:2015, for high accuracy measurements;
— a calorific value determination device (CVDD).
Requirements for type approval tests of the devices, not included in the above-mentioned standards are described in appropriate annexes specified in Table 6.
For the purpose of this document, the term “volume conversion devices” (VCDs) includes flow computers (FCs).
A single calculator may undertake the volume conversion functions for different metering lines.

This part of IEC 62133 specifies requirements and tests for the safe operation of portable sealed secondary lithium cells and batteries containing non-acid electrolyte, under intended use and reasonably foreseeable misuse.

This standard establishes minimum requirements for susceptibility of cells, and batteries to the abuse and environmental effects that these cells and batteries may encounter in handling, transport and storage, but does not presume to account for these effects in specific applications, which are left to the requirements of the combination of the battery and end-use equipment in the end-use equipment standards.

Coin cells with an internal resistance greater than 3 Ω measured in accordance with IEC 61960-4:2024, 6.6, and batteries made from them are out of the scope of this document. The instructions for preventing accidental ingestion of those coin cells and batteries are specified in IEC 60086-4:2025, 7.2.

This standard does not address functional safety of the electronic and programmable electronic battery controls.

This standard addresses first life cells and batteries. In the case of reused, repurposed or second life secondary lithium cells and batteries, additional requirements and tests should be considered.

In addition to the requirements explicitly outlined in this standard including markings and instructions, it is essential to consider other potential safety risks that cannot be fully addressed. These include, but are not limited to, hazardous voltage exposure, flammability risks for non-metallic materials, and other application-specific safety concerns.

Compliance to this standard alone cannot be sufficient for safe integration of a cell or battery in the end-use equipment if only the cells or batteries comply with this standard with no additional evaluation.

NOTE 1 Annex C of this standard provides guidance for further considerations when battery specific criteria are not covered in the end-use equipment standard.

Portable applications comprise hand-held equipment, transportable equipment and movable equipment.

Examples of the main uses are shown below:

hand-held equipment: smartphone, tablet PCs, audio/video players, and similar equipment;

transportable equipment: notebook computers, CD players, and similar equipment;

movable equipment

18 kg or less in mass and not fixed in place, or

provided with wheels, castors, or other means to facilitate movement by an ordinary person as required to perform its intended use,

power tools, power assisted cycles, business-use video cameras, and similar equipment.

NOTE 2 EESS (Electrical Energy Storage Systems) and UPS, which use batteries over 500 Wh of electric energy are excluded.

NOTE 3 Self-propelled vehicles are excluded

This part of IEC 60079 specifies the requirements for the design, construction, testing and marking of electrical Ex Equipment and Ex Components with Type of Protection increased safety "e" intended for use in explosive gas atmospheres.

Electrical Ex Equipment and Ex Components of Type of Protection increased safety "e" are either:

Level of Protection "eb" (EPL "Mb" or "Gb"); or

Level of Protection "ec" (EPL "Gc")

Level of Protection "eb" applies to Ex Equipment or Ex Components, including their connections, conductors, windings, lamps, and batteries; but not including semiconductor devices or electrolytic capacitors.

NOTE 1 The fundamental basis of "eb" is limitation of temperature, and reduced likelihood of insulation failure resulting in an arc or spark. Expected malfunctions of electronic components, such as semiconductor devices or electrolytic capacitors, can result in a failure producing excessive temperatures, or arcs and sparks.

Level of Protection "ec" applies to Ex Equipment or Ex Components, including their connections, conductors, windings, lamps, and batteries; and also including semiconductor devices and electrolytic capacitors.

NOTE 2 The use of electronic components, such as semiconductor devices or electrolytic capacitors, is permitted in Level of Protection "ec" as these are evaluated under both normal conditions and regular expected occurrences and are not likely to result in excessive temperatures or arcs and sparks. As the requirements for separation distances are not applied to the internal construction, commercially available electronic components are generally suitable if the external separation distances comply.

The requirements of this document apply to both Levels of Protection unless otherwise stated.

For Level of Protection "eb", this document applies to electrical equipment where the rated voltage does not exceed 11 kV ACRMS or DC.

For Level of Protection "ec", this document applies to electrical equipment where the rated voltage does not exceed 15 kV ACRMS or DC.

NOTE 3 Short circuit currents flowing through increased safety connections of mains circuits are not considered to create a significant possibility of ignition of an explosive gas atmosphere due to movement of connections as a result of mechanical stresses created by the short circuit current. Normally, the relevant industrial standards require that the effects of short time high currents on the security of connections be considered. The presence of the explosive gas atmosphere does not adversely affect the integrity of the connection.

NOTE 4 Any short term thermal excursions that occur as a result of electrical current excursions above normal rated currents, such as those that occur during the starting of motors, are not considered to create a significant possibility of ignition of an explosive gas atmosphere due to the relatively short duration of the event and the convection that occurs during the event.

NOTE 5 High-voltage connections and associated wiring (above 1 kV) can be susceptible to increased partial discharge activity that could be a source of ignition. Increased spacings to earthed surfaces or other connections and provision of suitable high-voltage stress relief for the terminations are typically provided.This document supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this document conflicts with a requirement of IEC 60079-0, the requirement of this document takes precedence.

Amendment 1

This part of IEC 60794-1 describes test procedures used to establish uniform requirements for mechanical properties of optical fibre cables when subjected to bending under tension. The purpose of this test is to determine the ability of an optical fibre cable to withstand bending around rollers or bows during installation, when a specified load is applied.

This document applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors.

Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc.

See IEC 60794-1-2 for general requirements and definitions and for a complete reference guide on test methods of all types.

This part of IEC 60071 applies guidelines on the procedures for insulation co-ordination of AC filters and DC filters for high-voltage direct current (HVDC) converter stations, whose aim is evaluating the overvoltage stresses，transient currents and energies on AC /DC filters sub-system, and determining the specified withstand voltages for their components.

This document applies only to metal-oxide surge arresters without gaps, which are used in AC /DC filters. This document involves the criteria for determining the protective levels of series and/or parallel combinations of surge arresters used to ensure optimal protection, typical arrester protection schemes and stresses of arresters.

This document only apply to AC/DC filters for HVDC converter stations.