ISO/TR 4340:2022

مواصفة قياسية دولية   الإصدار الحالي
اعتمدت بتاريخ  03 يونيو 2022

Water aggressiveness evaluation and optimized lining choice

أنابيب الحديد والفولاذ
* أنابيب الفولاذ والمواسير للاستخدام الخاص، انظر 77.140.75

ملفات الوثيقة ISO/TR 4340:2022

null صفحات
الإصدار الحالي

مجال الوثيقة ISO/TR 4340:2022

This document provides details about the aggressiveness factors, evaluation indicators of raw water, or inlet water of ductile iron pipe system and relevant lining information applicable to ductile iron pipes, fittings and accessories used in water mains and distribution system.

This document is intended to serve as a tool for estimating the properties of certain water and their effect on internal linings of ductile iron pipes, fittings and accessories used in water mains and distribution system which are specified in ISO 2531, ISO 16631 and can be used to decide the most appropriate protective measures to ensure long term durability of pipeline.

It is not always possible to definitively determine the aggressive parameters of certain water, and fully considered by limited test and evaluation. Therefore, the history information of the evaluated water, experiences of local water works can be taken for reference.

The aggressiveness evaluation of water can be carried out before determining the internal lining materials of certain pipeline, and the evaluation and relevant tests can be done by qualified laboratories and engineers.

Water that leads to high-level scaling in the pipeline is believed aggressive.

Drainage and waste water are not in the scope of this document, the internal protection of drainage and waste water can be recommended by pipe suppliers.

الأكثر مبيعاً

GSO 150-2:2013
 
مواصفة قياسية خليجية
فترات صلاحية المنتجات الغذائية - الجزء الثاني : فترات الصلاحية الاختيارية
BH GSO 150-2:2015
GSO 150-2:2013 
مواصفة قياسية بحرينية
فترات صلاحية المنتجات الغذائية - الجزء الثاني : فترات الصلاحية الاختيارية
BH GSO 150-1:2015
GSO 150-1:2013 
لائحة فنية بحرينية
فترات صلاحية المنتجات الغذائية - الجزء الأول : فترات الصلاحية الإلزامية
GSO 150-1:2013
 
لائحة فنية خليجية
فترات صلاحية المنتجات الغذائية - الجزء الأول : فترات الصلاحية الإلزامية

اعتمدت مؤخراً

ISO 21978:2023
 
مواصفة قياسية دولية
Air to water heat pumps — Testing and rating at part load conditions and calculation of seasonal coefficient of performance for space heating
ISO 12643-2:2023
 
مواصفة قياسية دولية
Graphic technology — Safety requirements for graphic technology equipment and systems — Part 2: Prepress and press equipment and systems
ISO 4266-2:2023
 
مواصفة قياسية دولية
Petroleum and liquid petroleum products — Measurement of level and temperature in storage tanks by automatic methods — Part 2: Measurement of level in marine vessels
ISO 12643-3:2023
 
مواصفة قياسية دولية
Graphic technology — Safety requirements for graphic technology equipment and systems — Part 3: Binding and finishing equipment and systems