PD ISO/TR 23605:2009 Technical product specification (TPS). Application guidance. International model for national implementation
PD ISO/TR 23605 describes the results of the inter-laboratory testing of the chemical analysis of cement by x-ray fluorescence. In the first instance, the inter-laboratory testing was carried out in Japan and in Asian countries in accordance with JIS R 5204:2002. A total of 30 laboratories, 16 in Japan and 14 outside Japan, participated in the original testing programme. A further 12 European laboratories participated in tests with the same materials in 2005 in accordance with EN 196-2, a development by CEN/TC 51/WG 15/TG 1 of JIS R 5204.
The loss on ignition is also determined.
The ISO round robin is a method-performance study conducted under close to optimum conditions with clear calibration and measurement guidelines. This is conducive to producing “best practice” values representative of the ideal situation.
BS ISO 29581-2 is intended for use under everyday conditions in laboratories that operate to “good practice”. Annex D sets out the results of some international round robins carried out by a large number of laboratories demonstrating the suitability of BS ISO 29581-2 as a means for comparing the everyday performance of laboratories.
Contents of PD ISO/TR 23605:
Foreword
Introduction
1 Scope
2 Test methods
2.1 General arrangements
2.2 Test method and constituents to be determined
3 Samples
3.1 Test samples
3.2 Calibration standards
3.3 Validation materials
3.4 Participating laboratories
4 Method for analysis of results
4.1 Statistics
4.2 Definition of Q-laboratories
5 Results and considerations
5.1 Laboratory number
5.2 Validation results for all laboratories
5.3 Test results of Q-laboratories
6 Conclusions
6.1 Result of test sample analyses
6.2 Factors affecting conformity with the validation criteria
6.3 Application to other international inter-laboratory testing
Annex A (informative) List of participating laboratories
Annex B (informative) Individual results of all laboratories
Annex C (informative) Questionnaire results
Annex D (informative) Other international inter-laboratory round-robin analyses of cement
Annex E (informative) Acknowledgements
Bibliography
