標準號：BS EN ISO 21809-5-2010
中文標準名稱：石油和天然氣工業.管道運輸系統用埋設或水下管道用外部涂層.外部混凝土涂層
英文標準名稱：Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - External concrete coatings
標準類型：E98
發布日期：2010/4/30 12:00:00
實施日期：2010/4/30 12:00:00
中國標準分類號：E98
國際標準分類號：75.200
適用范圍：This part of ISO 21809 specifies the requirements for qualification, application, testing and handling ofmaterials required for the application of reinforced concrete coating externally to either bare pipe or pre-coatedpipe for use in pipeline transportation systems for the petroleum and natural gas industries as defined inISO 13623.The external application of concrete is primarily used for the negative buoyancy of pipes used in buried orsubmerged pipeline systems and/or for the mechanical protection of the pipe and its pre-coating.This part of ISO 21809 is applicable to concrete thicknesses of 25 mm or greater.