Hovedemner

This document is applicable to ammonium chloride used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements of ammonium chloride and refers to the corresponding analytical methods. It gives information for its use in water treatment. It also determines the rules relating to safe handling and use of ammonium chloride (see Annex B).

This document is applicable to sulfuric acid used for treatment of water intended for human consumption. It describes the characteristics of sulfuric acid and specifies the requirements and the corresponding test methods for sulfuric acid. It gives information on its use in water treatment.

This document specifies: - the dimensional, mechanical, hydraulic and acoustic characteristics with which sanitary tapware aerators (with and without flow regulation) should comply; - the procedures for testing these characteristics. This document is applicable to: - Sanitary tapware aerators intended to be mounted on tapware used with sanitary appliances in toilets, bathrooms and kitchens (e.g. single taps, combination tap assemblies, mechanical mixing valves, thermostatic mixing valves); —-Sanitary tapware aerators used under the following pressure and temperature conditions: Note 1: Sanitary tapware aerators can only be connected downstream of the obturator of the sanitary tapware product. Note 2: For the purposes of brevity, sanitary tapware aerators will be detailed only as aerators in the rest of this document. Note 3: The tests described in this document are type tests (laboratory tests) and not quality control tests carried out during manufacture.

This document gives the test methodology for evaluation of both harmfulness and effectiveness of a cleaning method as applied to porous inorganic materials. These include materials such as natural or artificial stone, included those with painting layers as finishes. Evaluation admits the use of on site instrumental analyses and the taking of samples to be studied in laboratory. Harmfulness evaluation has a priority over the effectiveness. This document applies to: a) all methods of cleaning, which have characteristics of parameterization and reproducibility (see EN 17138:2018). Part A; b) all new methods that are under development. Part B. This document applies to evaluate the optimum methods for cleaning and the optimization of the parameters of the selected cleaning process.

This European Standard specifies requirements, test methods, marking, manufacturer’s instructions and information for retractable type fall arresters (RTFAs) and applies to a RTFA with a single retractable lanyard and a RTFA with two retractable lanyards (twin RTFA) as components of one of the fall arrest systems covered by EN 363:2018.

This European Standard specifies the minimum requirements for measuring systems fitted on Track Construction and Maintenance Machines to give an evaluation of track geometry quality when they measure any one or more of the parameters described in EN 13848-1. This European Standard also gives the acceptable differences from EN 13848-1 when using chord measurements. This European Standard does not specify: - requirements for vehicle acceptance; - criteria for track works acceptance; - requirements for Urban Rail Systems. However, parts of it can be used as a reference until a specific Standard is published. Only systems put into service after the standard comes into force are concerned.

This document specifies data exchange and communications for meters in a generic way. This document establishes a protocol specification for the Application Layer for meters and establishes several protocols for meter communications which can be applied depending on the application being fulfilled. This document also specifies the overall structure of the OBject Identification System (OBIS) and the mapping of all commonly used data items in metering equipment to their identification codes.” NOTE Electricity meters are not covered by this document, as the standardization of remote readout of electricity meters is a task for CENELEC/IEC.