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SSC Mission and History
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SSC History

The Scientific and Standardization Committee (SSC) began in 1954 as the International Committee for the Standardization of the Nomenclature of the Blood Clotting Factors.

Its original 16 members came together to meet the urgent need to communicate a consistent nomenclature for the many new clotting factors that had been identified at the time.

In 1958, the Committee adopted the Roman numeral system for labeling blood clotting factors, and by 1963, the system had become the standard in professional literature. The group changed its name to the International Committee on Thrombosis and Haemostasis (ICTH) as it expanded its scope to tackle new problems in the fields of blood coagulation and hemorrhagic disorders.

Years later, the ICTH felt the need for a larger, more open organization that would support the international dissemination of information. It founded the International Society on Thrombosis and Haemostasis (ISTH) in 1969 and changed its name to the SSC.

SSC Mission

The SSC is a permanent committee of the ISTH and is its scientific working arm. Conducted through 20 subcommittees and working groups, its activities promote cooperation among leading international scientists and direct their energies to projects that generate reliable and standard­ized clinical and basic science tools.

The SSC supports the ISTH’s mission by:

  • Providing a forum where internationally recognized experts can consider and discuss practical issues related to thrombosis and disorders of haemostasis and their underlying vascular biology.
  • Supporting groups of researchers who are working to solve thrombosis- and hemostasis-related issues and to apply relevant solutions to clinical problems.
  • Promoting education and an ongoing exchange of ideas through scientific meetings and the publication of official reports, recommendations and deliberations.
  • Standardizing nomenclature and research methods.
  • Providing expert consultation services to standards-setting bodies.
  • Liaising and collaborating with other research organizations on important research matters.

Further information on the SSC structure and function can be found in the SSC Rules and Guidelines

If you are a member of the Society and would like to know how to participate in the work of the SSC, please submit an Expression of Interest Form to the subcommittee you would like to join. You may also contact the ISTH Headquarters at We would be pleased to learn of your interest.



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