Water storage
The regulations and standards in this section offer everything on water infrastructure. Topics include water distribution and pipe networks, water storage, metrology, fire-fighting water.
This Standard W 1003 relates to the piped supply of public water under normal operating conditions. Covering the different technical aspects and value-added steps, it provides an integral overview of how to describe, analyse and assess the resilience and security of supply in water supply areas.
This document ISO 17885 specifies the requirements for mechanical fittings for joining plastic piping systems for the supply of gaseous fuels, the supply of water for human consumption and other purposes, as well as for industrial application. It provides a unified set of test methods to check the performance of the fittings, depending on their intended use. It is the responsibility of the purchaser or specifier to select the appropriate fitting, taking into account their particular requirements and any relevant national guidance or regulations and installation practices or codes.
GW 301 Technical Rule ‑ Standard 01/2021
For the purposes of this Standard GW 381, the term minimum requirements implies that further requirements can ensue from technical rules and legal provisions and/or that the ordering party may stipulate further requirements, in particular in the presence of special features or needs for protection or other constraints. The optional criteria shall, without claiming to be exhaustive, be considered guidance for the ordering party who shall decide on the need for further requirements. If a company consists of several units, this technical rule applies to the units in charge of underground construction and, without exception, to independent subsidiaries as well. A subsidiary shall be assumed to be independent if, in effect, it actually controls most operations and/or if the head office of the company is unable to provide the supervision of the staff and the construction sites as required.
This Code of Practice W 122 comprises all closing‑off structures for groundwater developments by vertical and horizontal filter wells. The new version incorporates operational issues insofar as they have an immediate effect on the requirements placed on the planning and construction of closing‑off structures.
W 400‑1 Technical Rule Standard 02/2015
This Code of Practice W 402 describes how to collect and process reliable inventory, condition and environmental data about water distribution systems. Condition data notably include data on damages especially failures. These data shall serve mainly as a basis for systematic maintenance in accordance with DVGW W 400‑3 (A) and DVGW W 403 (M). Reliable failure statistics are of particular significance in this context as they serve to predict failure and failure rates and, consequently, determine the residual service lives. This Code of Practice supersedes Instruction Bulletin W 395 dated July 1998.
