The Standard
STD-7 defines the seven-type scale and the criteria by which adjacent types are distinguished.
The standard →Mandate
The Association establishes and maintains the international reference standard for the morphological classification of stool specimens, and administers the certification of personnel applying it.
- Founded 1997
- 41 member states
- Registered association under the law of Liechtenstein (Art. 246 ff. PGR)
- Seat: Vaduz
Certification
The CSPI credential attests that the holder can classify a specimen without reference material at hand.
Certification programme →Examinations
Sessions, admission, and the regulations governing conduct at the examination.
Examinations →The Association
Mandate, governance, committees, and how the standard came to be written.
About the Association →Notices and circulars
- STD-7 fourth edition: erratum to §4.2, boundary criteria for Type 5
- Registration for the 2026/III examination cycle is closed
- Study 2013/2 continues to be cited. The Association reiterates that it has not endorsed it
- Notice regarding unsolicited material received by the Secretariat
- Thirtieth anniversary of the Trombone Incident: no observance is planned
Circulars are issued to member organisations and are not published in full.
Verify a certificate
Enter a certificate number as printed on the document.
The public register is not available online. Verification is carried out in writing by the Secretariat on request, and requires the written consent of the certificate holder, which is rarely given.
Examinations
Session 2026/III is closed to new registrations. Session 2026/IV is open to candidates holding a written invitation from the Examinations Office.
Registration →Recognised by
- International Council for Morphological Diagnostics
- European Federation of Diagnostic Standards
- Council of Allied Diagnostic Standards