ISO 31120-1:2022 pdf download – Road vehicles — Injection water — Part 1: Quality requirements.
1 Scope This document specifies water quality used for water injection in internal combustion engines. This document defines quality requirements for injection water including instructions for storage, container materials and production. Testing procedures are also defined. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 7393-2, Water quality — Determination of free chlorine and total chlorine — Part 2: Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes ISO 7393-3, Water quality — Determination of free chlorine and total chlorine — Part 3: Iodometric titration method for the determination of total chlorine ISO 7888, Water quality — Determination of electrical conductivity ISO 10304-1, Water quality — Determination of dissolved anions by liquid chromatography of ions — Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate ISO 10304-4, Water quality — Determination of dissolved anions by liquid chromatography of ions — Part 4: determination of chlorate, chloride and chlorite in water with low contamination ISO 10523, Water quality — Determination of pH ISO 11885, Water quality — Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) ISO 15061, Water quality — Determination of dissolved bromate — Method by liquid chromatography of ions ISO 15923-1, Water quality — Determination of selected parameters by discrete analysis systems — Part 1: Ammonium, nitrate, nitrite, chloride, orthophosphate, sulfate and silicate with photometric detection EN 872, Water quality — Determination of suspended solids — Method by filtration through glass fibre filtres EN 1484, Water analysis — Guidance for determination of total organic carbon DIN 38409-1, German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of total dry residue, filtrate dry residue and residue on ignition (H 1) 3? Terms? and? definitions For the purposes of this document, the following terms and definitions apply.
5.3 Cleanliness of surfaces in contact with IW All surfaces in direct contact with IW shall be free of foreign matter (e.g. fuel, oil, grease, detergent and dust), see also 7.2. To avoid any contamination of IW with trace elements, particles and foreign matter, surfaces of equipment not exclusively used with IW shall be cleaned with IW in the last cleaning step immediately before the use with IW. The use of tap water should be especially avoided due to the high concentrations of alkali and alkali earth metal ions therein. However, if IW is not readily available, the material may be cleaned with tap water provided the last rinse is done using fresh IW. If it is necessary to clean a system regardless of whether detergents are used or not, it should be verified that the trace elements specified in Table 1 are within the specification using the methods specified in this document. 5.4 Recommendation on information on further properties Information on further properties of IW should be given in the applicable safety data sheet (SDS), which contains indications on the hazard ranking and regulations to be respected as well as measures required to be taken for the protection of persons and of the environment when handling the product. 6 Quality assurance 6.1 General Each container of IW brought to the market shall be traceable back to their production batches by way of a unique batch number. An addition of the date of original manufacturing or the date of last certification is recommended.
ISO 31120-1:2022 pdf download – Road vehicles — Injection water — Part 1: Quality requirements
