ISO international standards, developed by the International Organization for Standardization (ISO) based in Geneva, Switzerland, are considered among the world's strictest and highest quality standards. The ISO, a non-governmental organization established in 1947, comprises a worldwide federation of national standards bodies from each of 100 countries. The organization aims to facilitate the international exchange of goods and services by establishing international standards and reconciling regulatory differences between countries.
ISO standards contain precise criteria for the features and characteristics of products and services to ensure that these products and services are fit for their purpose. For example, the format of credit cards is derived from an ISO international standard. Complying with an international standard, which defines such features as the optimal thickness (0.76 mm) of each card, means that the cards can be used worldwide.
International standards thus contribute to making life simpler and to increasing the reliability and effectiveness of the goods and services that we use. Coordinated standards for similar technologies in different countries or regions can also effectively remove so-called "technical barriers to trade."
The scope of ISO covers all technical fields, except electrical and electronic engineering, which is the responsibility of the International Electrotechnical Commission (IEC). The IEC is the international standards and conformity assessment body for all fields of electrotechnology. The work in the field of information technology is carried out by a joint ISO/IEC technical committee.
The ISO issues the certifications and certifies individuals that work with companies in setting up ISO standards in their business. ISO certification is very pricey; on average, it runs between $20,000 and $35,000 per year. A company can't say that it is ISO unless a certified ISO auditor has declared it so. Because of the cost of ISO, some contracts will specify ISO compliant. While this doesn't require certification, it does mean you are taking steps in that direction.