Standartų projektų sąrašas

Paieškos frazė

Išplėstinė paieška

Žymuo

Direktyvos

Organizacija

ICS

Technikos komitetas

Užsienio komitetas

Darbo grupė

Etapas

Būsena

Komentavimo data

iki

Rezultatai

prEN 18268 Viešoji apklausa

Komentavimo iki data 2026-01-18

Chemikalai žmonėms vartoti skirtam vandeniui ruošti. Preparatai apnašoms nuo membranų šalinti. Citrinų rūgštis

This document is applicable to citric acid used as an antiscalant for membranes in the treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding analytical methods for citric acid. It gives information on its use as an antiscalant for membranes in water treatment. It also provides guidance relating to safe handling and use (see Annex B).

Skaityti, komentuoti projektą Peržiūrėti metaduomenis

prEN 18247-1 Viešoji apklausa

Komentavimo iki data 2025-12-30

Vietoje įrengiamų negeriamojo vandens sistemų veikimo efektyvumo bandymas. 1 dalis. Buitinių nuotekų sistemos

This document specifies the testing conditions to assess the treatment performances of greywater systems. Excluded from the scope of this document are: - the testing of rainwater harvesting systems; - the testing of systems for direct use as mentioned in EN 16941–2 "On-site non-potable water systems - Part 2: Systems for the use of treated greywater"; - the testing of blackwater treatment systems; - the testing of wastewater treatment plant.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis

prEN 295-8 Viešoji apklausa

Komentavimo iki data 2025-12-30

Glazūruotųjų keraminių vamzdžių sistemos, skirtos nuotakynams. 8 dalis. Glazūruotųjų keraminių komponentų naudojimo atnaujinant nuotekų šalinimo sistemas reikalavimai ir esamų nuotekų šalinimo sistemų atnaujinimo būdų taikymo sąlygos

The scope of the new standard will cover the different types of repair and rehabilitation that can be undertaken on / or with clay pipes. This will include details on trenchless installation technologies where clay pipes can be used for repair or replacement. The standard will outline the technique used and relevant standards that products can be used from as well as performance and testing criteria for products after installation. The scope will also cover repair and rehabilitation of pipes laid using the open trench installation method. This will include replacement of socketed joints and replacement or repair of pipes, junctions and manholes. The scope will again cover the products that can be used, their performance criteria and testing methods after installation.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis

prEN 1490 Viešoji apklausa

Komentavimo iki data 2025-12-23

Pastatų armatūra. Jungtiniai temperatūros ir slėgio vožtuvai. Bandymai ir reikalavimai

This document specifies dimensions, materials and performance requirements, including test methods, for combined temperature and pressure relief valves, of nominal sizes from DN 15 to DN 40, having working pressures ) from 0,3 MPa (3 bar) to 1,0 MPa (10 bar). Combined temperature and pressure relief valves control and limit the temperature and pressure of the water contained in a hot water heater to the valves rating pressure and a temperature not exceeding 100 °C and will prevent water to steam formation when other temperature controls fail. Combined temperature and pressure relief valves are classified having a maximum opening temperature range from 90 °C to 95 °C for class A and 75 °C to 80 °C for class B. They are not intended to act as an expansion valve and do not control cold water flow. Alone it does not constitute the control functions for a water heater. A combined temperature and pressure relief valve is an independently mechanically operating device, therefore operating without an external energy source. NOTE The use of the device specified in this document does not override the need to use controls (e.g. thermostats and cut-outs) which act directly on the power sources of water heaters (for more information, see Annex B).

Skaityti, komentuoti projektą Peržiūrėti metaduomenis

Būtini slapukai

Statistikos slapukai

El. pašto prenumerata

Išplėstinė paieška

Rezultatai

Greitieji filtrai

Organizacija

Technikos komitetas

ICS