ISO

What is ISO

ISO is an international standard development organization compose of representatives from the national standards organizations of member countries. Membership requirements are given in Article of the ISO Statutes.

It was found on 23 February 1947, and (as of November 2022) it has published over 24,500 international standards covering almost all aspects of technology and also manufacturing. It has 811 Technical committees and sub committees to take care of standards development. The organization develops and publishes standardization in all technical and nontechnical fields other than electrical and also electronic engineering, which is handle by the IEC.  It is headquarter in Geneva, Switzerland, and works in 167 countries as of 2023. The three official languages are English, French, and Russian.

Standard

The work of preparing International Standards is normally carry out through organization technical committees. Each member body interest in a subject for which a technical committee has been establish has the right to be representation on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards already draft in accordance with the rules given in the ISO/IEC Directives.
The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

Introduction

The performance of protective coatings of paint and related products applied to steel is significantly affected by the state of the steel surface immediately prior to painting. The principal factors that are known to influence this performance are

Firstly the presence of rust and mill scale;
Secondly the presence of surface contaminants, including salts, dust, oils and greases;
Finally the surface profile.

International Standards ISO 8501, ISO 8502 and ISO 8503 have been preparing to provide methods of assessing these factors. While ISO 8504 provides guidance on the preparation methods that are available for cleaning steel substrates, indicating the capabilities of each in attaining specified levels of cleanliness.
These International Standards do not contain recommendations for the protective coating systems to be apply to the steel surface. Neither do they contain recommendations for the surface quality requirements for specific situations even though surface quality can have a direct influence on the choice of protective coating to be applying and on its performance. Such recommendations are given in other documents such as national standards and codes of practice. It will be necessary for the users of these International Standards to ensure that the qualities specified are:

— compatible and appropriate both for the environmental conditions to which the steel will be exposing and for the protective coating system to be use.
— within the capability of the cleaning procedure specify.

We provide ISO 8501-1 Books , and for more detail information please contact us.