BS EN 1670:2007
Building hardware - Corrosion resistance - Requirements and test methods

Standard No.

BS EN 1670:2007

Release Date

2007

Published By

British Standards Institution (BSI)

Status

Be replaced

Replace By

BS EN 1670:2007(2009)

Latest

BS EN 1670:2007(2009)

Replace

06/30112897 DC-2006 BS EN 1670:1998

Scope

This European Standard specifies the requirements for the corrosion resistance of building hardware for doors, windows, shutters and curtain walling. This European Standard provides a method of classification of corrosion resistance of building hardware based on performance in a neutral salt spray test (EN ISO 9227). This European Standard specifies requirements for both coated and uncoated surfaces and five grades of corrosion resistance being laid down in accordance with the different conditions of use grades 1 to 5. A grade 0 is also included for which no requirements have been specified. Requirements for levels of corrosion resistance which are higher than those laid down for grade 5 have not been included in this European Standard and are subject to agreement where required. This European Standard also applies to the metal fasteners required for fixing building hardware if specified. Screws and fastenings which are sold with a hardware product which conforms to this European Standard should also conform to this European Standard. NOTE 1 The term "grade" used in this European Standard corresponds to the term "class" which is used in ISO standards. NOTE 2 There is seldom a direct relationship between resistance to the action of salt spray and resistance to corrosion in other media, because several factors influencing the progress of corrosion, such as the formation of protective films, vary greatly with the conditions encountered. Therefore, the test results should not be regarded as a direct guide to the corrosion resistance of the tested materials in all environments where these materials may be used. Also, the performance of different materials during the test should not be taken as a direct guide to the corrosion resistance of these materials in service. The method described in this European Standard gives a means of checking that the comparative quality of a material, with or without corrosion protection, is maintained. In addition, for quality control purposes, comparison can be made between specimens coated with the same coating. As comparative tests, however, salt spray tests are only suitable if the coatings are sufficiently similar in nature. It is often not possible to use results gained from salt spray testing as a comparative guide to the long-term behaviour of different coating systems as the corrosion stress during these tests differs significantly from the corrosion stresses encountered in practice.

BS EN 1670:2007 Referenced Document

• EN ISO 4628-2 Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects@ and of intensity of uniform changes in appearance - Part 2: Assessment of degree of blistering*， 2016-02-01 Update
• EN ISO 9227 Corrosion tests in artificial atmospheres - Salt spray tests - Amendment 1: Footnote of warning (ISO 9227:2022/DAM 1:2023)

BS EN 1670:2007 history

• 0000 BS EN 1670:2007(2009)
• 2007 BS EN 1670:2007 Building hardware - Corrosion resistance - Requirements and test methods
• 1998 BS EN 1670:1998 Building hardware - Corrosion resistance - Requirements and test methods