Standard No.:	GB/T 5776-2023
English Name:	Corrosion of metals and alloys―Guidelines for exposing and evaluating metals and alloys in surface sea water
Chinese Name:	金属和合金的腐蚀 金属和合金在表层海水中暴露和评定的导则
Chinese Classification:	H25    Metal chemical property test method
Professional Classification:	GB    National Standard
Issued by:	SAMR; SAC
Issued on:	2023-08-06
Implemented on:	2024-3-1
Status:	valid
Superseding:	GB/T 5776-2005 Corrosion of metals and alloys-Guidelines for exposing and evaluating metals and alloys in surface sea water
Language:	English
File Format:	PDF
Word Count:	8500 words
Price(USD):	255.00
Delivery:	via email in 1~3 business day

本文件描述了金属和合金在表层海水中暴露的条件和方法，规定了海水对金属和合金腐蚀的评定要求，以便对不同地点的暴露做有意义的比较。本文件适用于从水平面以上潮湿的重要区带（飞溅区和潮汐区）到水平面以下与表面海水组成相近深度的暴露范围。由于海水的可变性和复杂性，为减少可变因素的影响，暴露时间通常为一年以上。