Difference Between ISO and ISI

Edited by Diffzy | Updated on: April 30, 2023


Difference Between ISO and ISI

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If not, you may read more about the differences between ISO and ISI below. To start, an ISO Certification denotes a high degree of product quality and dependability as well as health safety.

By proving through certification that your good or service satisfies client expectations, you may increase your credibility. Have you ever wondered what the ISO or ISI (Indian) markings on the item you just purchased mean?

The Indian Standards Organization owns the registered trademark ISI, which is only allowed to appear on Indian-made goods. International Organization for Standardization is what ISO stands for, as was previously explained. Businesses or organizations may receive certification as a result of this organization's work. The primary distinction between ISO and ISI is that ISO is a global organization for product standardization. The Bureau of Indian Standards, on the other hand, is the owner of the ISI trademark.

The Indian Standard Institute is known by the abbreviation ISI. The Indian standards listed in the ISI's guidelines are guaranteed to be met by products bearing the ISI mark. Every year regularly, an impartial third party manages these certificates. This routine examination of credentials guarantees the c aliber of that merchandise.

These ISI markings guarantee that the wires being sold are flawless and in functional condition. Some electrical items that are offered on the market, such as cables, appliances, motors, etc., must also have the ISI mark.

Difference Between ISO and ISI in Tabular Form



Worldwide management that accredits quality assurance

Indian management that is accredited for quality control.

International Organization for Standardization

Indian Standards Institute

It is used to ensure the product's quality.

This is used for ensures the product's quality

Availability for Global

Available only for goods from India.

What is ISO?

The International Organization for Standardization is a global organization for the development of standards made up of representatives from the national standards bodies of the member nations. Article 3 of the ISO Statutes outlines the requirements for membership.

As of November 2022, the ISO has released nearly 24,500 international standards that essentially covered every facet of manufacturing and technology since its founding on February 23, 1947. Its 809 Technical committees and subcommittees are in charge of developing standards. Except for electrical and electronic engineering, the organization creates and publishes standards in all technical and nontechnical domains. It has its headquarters in Geneva, Switzerland, and as of 2022, it operates in 167 nations. French, English, and Russian are the ISO's three official languages.

The International Organization for Standardization is a private, non-governmental organization made up of various national standards organizations. As of 2022, 167 members represent ISO in their country, with one member for each country.

Except for electrical and electronic engineering, which are the purview of the International Electrotechnical Commission, the organization sets and publishes international standards in all technical and nontechnical domains. As of April 2022, the ISO had produced over 24,261 standards, covering everything from manufactured goods and technology to food safety, agriculture, and healthcare. Within ISO, there are 804 technical committees and subcommittees dedicated to creating standards.

Each member of ISO, a nonprofit organization with recognized experts in standards, represents a different nation. Members meet annually for a General Assembly to discuss ISO's strategic objectives. Operations are managed by the organization's central secretariat, which is located in Geneva.

A council with 20 member entities that decide on the annual budget for the central secretariat provides leadership and governance. The technical management board oversees the more than 250 technical committees that work to establish ISO standards.

ISO is funded by a combination of:

  • Organizations that oversee certain projects or provide expertise on loan to assist with technical work
  • subscriptions from member organizations, whose dues are proportional to each nation's gross domestic GDP and trade statistics.
  • sale of benchmarks

International Standards

These are identified using the ISO [IEC] format. [/ASTM] [IS] nnnnn[-p]: [yyyy] Title describes the subject, where nnnn is the standard's number, p is an optional part number, yyyy is the year it was issued, and Title. If the standard is a consequence of the work of ISO/IEC JTC 1 (the ISO/IEC Joint Technical Committee), IEC, which stands for the International Electrotechnical Commission, is included. Standards created in collaboration with ASTM International are referred to by the acronym ASTM (American Society for Testing and Materials). For an incomplete or unpublished standard, yyyy and IS are not used, and in some cases, they may be omitted from the title of a published document.

Technical Reports

When a technical committee or subcommittee gathers information that isn't typically published as an international standard, like references and explanations, these are issued. These follow the same naming conventions as standards, with the exception that the report's name has TR appended rather than IS.

For example:

  • Information Security Management Code of Practice, ISO/IEC TR 17799:2000
  • ISO/TR 19033:2000 Construction documentation metadata for technical product documentation

Technical and Publicly Available Specifications

When "the subject in question is still under development or where, for any other reason, there is a future but the not immediate possibility of an agreement to publish an International Standard," technical specifications may be created. In most cases, a publicly available specification is "an intermediate specification, published before the development of a full International Standard, or, in maybe may be a 'dual logo' publication published in collaboration with an external organization." By custom, the names of both types of specifications resemble those of the company's technical reports.

For example:

  • Technical product documentation - Reference designation system - Part 1: General application guidelines, ISO/TS 16952-1:2006
  • 2006 ISO/PAS 11154 Roof load carriers for cars and trucks

Technical Corrigenda

The ISO occasionally publishes "technical corrigenda" (where "corrigenda" is the plural of corrigendum). These are modifications made to current standards in response to minor technical issues, usability enhancements, or expansions with narrow applications. Typically, they are released with the understanding that the impacted standard will either be updated or withdrawn at its upcoming review.

ISO Guides

These are "matters related to international standardization" meta-standards.

For example:

  • Guideline ISO/IEC 2:2004 Activities relating to standardization and general vocabulary
  • Guide 65:1996 of the ISO/IEC General specifications for organizations that conduct product certification (since updated and reissued as ISO/IEC 17065:2012 Conformity assessment — Specifications for organizations that conduct product, process, and service certification).

Strict copyright limitations apply to ISO papers and ISO charges for the majority of copies. By 2020, a copy of an ISO standard will normally cost at least US$120 (and electronic copies typically have a single-user license, so they cannot be shared among groups of people). The International Electrotechnical Commission (IEC) and its official U.S. representative, via the U.S. National Committee, have some standards that are freely accessible.

What is ISI?

Since 1955, India has used the ISI mark to identify industrial items as meeting standards. The mark attests to a product's compliance with an Indian standard (IS) created by India's national standards organization, the Bureau of Indian Standards (BIS). In the Indian subcontinent, the ISI mark is by far the most recognizable certification mark. The national standards organization was formerly known as the Indian Standards Institution, or ISI, before changing its name to the Bureau of Indian Standards on January 1, 1987. Certain goods, including many electrical ones like switches, electric motors, wiring cables, heaters, kitchen appliances, etc., as well as others like Portland cement, LPG valves, LPG cylinders, automotive tires, etc., must bear the ISI mark to be sold in India. The majority of other items do not require ISI marking.

In India, finding products with fake ISI marks is very common. In other words, industrial traders defraud customers by marking products with ISI logos even though they are not authorized. Typically, fake ISI marks don't have

(i) the mandatory 7-digit license number mandated by BIS (of the format CM/L-xxxxxxx, where x denotes a license number digit), and

(ii) the IS number above the ISI mark, which denotes the Indian standard with which a specific product complies.

For instance, if the box of a kitchen grinder has a tiny ISI mark and the wire's ISI code, one can infer that the wire is BIS-certified but that the appliance itself is not. The law makes counterfeiting ISI marks a criminal offense, but enforcement is rarely used.

The Certification Marks program and consumer protection were the driving forces for the creation of the Indian Standards Institution (ISI) on January 6th, 1947. ISI was based on a Department of Industries and Supplies letter from 3 September 1946 that was produced by the Institution of Engineers (India). This came before the meeting of 25 nations on October 14, 1946, in London, of which India was a founding member and the only "developing" nation. At this meeting, it was decided to establish the International Organization for Standardization, a global body to facilitate global coordination and unification of industrial standards. On March 21, 1952, the Indian Standards Institution (Certification Marks) Act was passed by Parliament, giving this legal legitimacy. The "ISI Mark" and the quality it attested to quickly gained notoriety as businesses and producers started to value and publicize their adherence to it. However, there was still a hole in the development of standards. What could have been a change by including standards-setting in the law was instead legislated through the Bureau of Indian Standards (BIS) Act, which was passed on December 23, 1986, and led to the establishment of the BIS on April 1, 1987, for the "harmonious development of the activities of standardization, marking, and quality certification" to produce dependable goods of high quality and reduce health risks through standardization, certification, and testing. All of the ISI's duties were transferred to the BIS, which then started creating standards, approving goods, registering trademarks, and issuing patents. The law's absence of precise requirements for certifying precious metals and jewelry was one of its flaws. The BIS Act of 1986 concentrated only on producers, whereas for gold, for example, the seller required certification. This required an enabling clause. The BIS Act of 1986 was thus repealed along with other changes, and on March 21, 2016, the BIS Act of 2016 went into effect. The new law provides for compensating consumers if a product does not conform to standards. It also gives flexibility to companies to conform to standards through self-declaration, which, if violated, attract punishments in the form of fines and imprisonment of up to two years.

Indian Statistical Institute is another ISI in its entire form. In Kolkata, West Bengal, there is a higher research institute called ISI. It has four subsidiary centers: one each in Mumbai, Chennai, Bangalore, and Tezpur. On December 17th, 1931, Professor P.C. Mahalanobis founded it in Kolkata. In 1959, a law passed by the Parliament gave ISI the designation of Institution of National Importance.

Main Differences Between ISO and ISI in Points

  • While ISI rules are established by the Indian bureaucracy, ISO guidelines are established by a non-governmental body.
  • Exclusively overseas goods carry ISO markings, whereas goods created in India only carry ISI marks.
  • Businesses that trade internationally must have ISO certification, whereas those that are based and only conduct business in India must have ISI certification.
  • Unlike ISI, which can be obtained through BIS, ISO does not offer product certification directly.
  • Unlike ISI certification, which is only valid for a year, ISO certification is valid for longer.


The most important accreditation for an Indian company on a worldwide scale is the ISI mark. On the other hand, ISO certification gives all sorts of goods and services excellent worldwide identification. While both ISI and ISO certifications have advantages, they each have different functions.

But one thing is certain: even if ISO is difficult to get, it is unquestionably more advantageous than ISI in the long term for the business industry. Both certifications are equally good, and when it comes to ISI, getting certified is easier than getting certified for ISO because, in ISI, you only need to go to the BIS department to complete the certification process.


  • https://www.tandfonline.com/doi/abs/10.1080/13563460802302693


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"Difference Between ISO and ISI." Diffzy.com, 2024. Mon. 15 Apr. 2024. <https://www.diffzy.com/article/difference-between-iso-and-isi-1118>.

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