Professional Résumé

Dipl.-Ing. Hans J. Kolitzus   


Study of Civil/Structural Engineering
University of Stuttgart, Germany
1966 graduated as Dipl.lng. (German MSC degree)

Professional Career

1966 - 1979 Scientific Engineer
Research and Testing Institute for Building Materials (F)MPA
of the University of Stuttgart, Germany (Otto-Graf-lnstitut)
(Forschungs- und Material-Pruefungsanstalt für das Bauwesen)

1979 - 2017 CEO of IST Consulting GmbH in Eschenz, Switzerland
Testing of all kinds of Sports Surfaces (with ISO 17025 Accreditation since 2005)
-- Artificial Turf for Soccer, Hockey and American Football
-- Synthetic Surfaces for Light Athletics and Outdoor Team Sports
-- Sports Hall Surfaces : wooden and synthetic designs
-- Children's Playground Surfaces

1979 - 2010 Court-appointed and Pre-selected Expert Whitness on Sports Surfaces in Germany
(oeffentlich bestellter und vereidigter Sachverstaendiger)

Since 1989 President of USSL Inc., a sport surface testing laboratory
in Lexington SC 29072 (former locations: Richmond VA, Hopewell VA, + Fort Walton Beach, FL 32547)

Since 2018 Independent Position as Expert Witness regarding sports surfaces
especially technological compatibility/performance of materials


Personal Credit for the development of test devices such as:
-- Artificial Athlete: DIN 18032-2/18035-6/18035-7 + EN 14808 + EN 14809 + ASTM + FIFA
-- Spikes Test Machine: DIN 18035-6
-- Ball Rebound Test : DIN 18032-2 + EN .... + FIFA
-- Angled Ball Rebound Test: FIFA
-- Rotational Sliding Tester: DIN 18032-2/18035-6 + EN 14903
-- Rolling Load Test: DIN 18032-2 + EN .... + ASTM

Concept and Preparation of the following documents:
-- DIN 18032-2 - DIN 18035-5 + DIN 18035-6


Testing Jobs in the field in:
-- most European Countries
-- USA
-- China
-- India
-- Kathar
-- Australia
-- Malaysia
-- Macao / Hong Kong
-- South America

Major Expert Witness Jobs

Activities Today

Manufacturing Test Devices
-- Artificial Athlete AA + AAA (EN 14808 + EN 14809 + FIFA QC)
-- Rotational Sliding Tester (EN 14903)
-- HIC-Tester (EN 1177)

Preparing Failure Analysis Reports

-- Tests acc. to DIN, EN and ASTM regarding Sports Surfaces in cooperation with major Test Houses
-- Field Tests with independent test equipment for site control (IAAF, EN 15330/SFV, HIC EN 1177)

Hosting and Managing the ISSS Office

Writing articles of special interest to the sports surface community


I.S.S.S. - International Association for Sports Surface Sciences

ASTM - American Society of Testing and Materials (Committee F08)

Technical Advisor to

IAAF Performance Specifications for Synthetic Surfaced Athletics Tracks (Monaco)
UEFA Turf Manual (Switzerland)
FIFA Turf Manual (Switzerland)
STC Turf Manual (USA)

RAL Quality Guidelines 'Synthetic Surfaces', 'Sports Hall Surfaces', 'Mineral Surfaces' (Germany)

DIN Certco Certification Guidelines 'Synthetic Surfaces', Sports Hall Surfaces', Artificial Turf Surfaces' (Germany)

ESSM/BASPO Guideline 'Selection of Sporthall Surfaces' (Switzerland)
ESSM/BASPO Guideline 'Synthetic Surfaces and Environment'

DIN 18032-2 Sports Hall Surfaces (Germany) / EN 14904
DIN 18035-5 Mineral Surfaces

DIN 18035-6 Synthetic Surfaces / EN 14877
DIN 18035-7 Artificial Turf Surfaces/ EN 15330-1

ASTM F 1292 Playground Surfaces (USA)
ASTM F 1536 Synthetic Sports Surfaces
ASTM F 2117 Vertical Rebound Characteristics of Sports Surface/Ball Systems


Board Member of the l.S.S.S. since 1985 (International Association of Sports Surface Sciences)

Member of the Cerfication Council of DIN Certco GmbH, a subsidiary of DIN and TUV


"Sports Hall Floors; Test Methods and Requirements", 1972, SB67, Magazine of the International Working Group for Sport and Leisure Facilities (IAKS)

"Requirements for Synthetic Surfaces for Light Athletics and Run-Up Tracks" Research Project of Federal Institute of Sports Sciences, 1974, Cologne, Germany

"Functional Standards for Playing Surfaces" in Sport Shoes and Playing Surfaces, 1984, Human Kinetics Publishers

"Quality Monitoring at Sports Surfaces" in Bauen mit Kunststoffen, 2/88, Darmstadt, Germany 1988

" Sports Surfaces and Environment"; Presentation at the l.S.S.S. Technical Seminar 1991 at Berlin

"DIN Standards - Their Development and Their Values Today "; presentation at the 2nd International Symposium on Sports Surfaces at Calgary, Alberta, Canada, 1992

"QualitatssicherungSporthallenboeden" (Quality Assurance Concept of Sports Hall Flooring Systems), 1992

"Kunststoffsportbelaege und Umwelt" (Synthetic Surfaces and Environment);Stadt & Grün (Das Gartenamt), 1996

"Design of Sports Surfaces Based on Biomechanical and Technical Concepts", presentation at the ISSS Technical Seminar , Lucerne (Switzerland) 1994

"Criteria for Establishing Guidelines for Sports Surfaces", presentation at the 3rd International Symposium on Sports Surfaces at Calgary, Alberta, Canada, 2003

"Ball Roll Behavior: The Functional Relationship of the Ball Roll Distance and the Timing Gate Method", ISSS Website, December 2003

"Environmental Compatibility of Sports Surfaces - History and Comments", ISSS Website, December 2003

more Publications on the ISSS Homepage

Comments on the Standardisation Process at DIN (especially regarding DIN SPEC 18035-6)

Artificial Athlete - its background and function (2017)

History of synthetic surfaces for athletics and artificial turf for soccer and American football
(an introduction to landscape architecture students) (2017)

Presentation to ISSS Technical Conference in Shanghai: A method to calibrate the AAA (2012)

list still to be completed (Feb18)



8253 Diessenhofen, Hintergasse 15, Switzerland
Phone +49 174 303 6323 / +41 77 470 8136