NDLI: Local comparability of proficiency testing results: determination of concrete slump and compressive strength values

Content Provider	Springer Nature Link
Author	Kimhi, Liat Zlotnikov, Chaim Kuselman, Ilya
Copyright Year	2006
Abstract	A proficiency testing (PT) scheme is developed for comparability assessment of results of concrete slump and compressive strength determination. The scheme is based on preparing of a test portion/sample of a concrete in-house reference material (IHRM) at a reference laboratory (RL) in the same conditions for every PT participant. Therefore, in this scheme IHRM instability is not relevant as a source of measurement/test uncertainty, while intra- and between-samples inhomogeneity parameters are evaluated using the results of RL testing of the samples taken at the beginning, the middle and the end of the PT experiment. The IHRM assigned slump and compressive strength values are calculated as averaged RL results. Their uncertainties include the measurement/test uncertainty components and the components arising from the material inhomogeneity. The test results of 25 PT participants were compared with the IHRM assigned values taking into account both the uncertainties of the assigned values and the measurement/test uncertainties of the participants. Since traceability of the IHRM assigned values to the international measurement standards and SI units cannot be stated, local comparability of the results is assessed. It is shown, that comparability of the slump and compressive strength determination results is satisfactory, while uncertainty evaluation for slump results requires additional efforts.
Starting Page	577
Ending Page	583
Page Count	7
File Format	PDF
ISSN	09491775
Journal	Accreditation and Quality Assurance
Volume Number	11
Issue Number	11
e-ISSN	14320517
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-10-05
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Comparability Proficiency testing Concrete Slump Compressive strength Marketing Monitoring/Environmental Analysis/Environmental Ecotoxicology Commercial Law Biochemistry Food Science Analytical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Instrumentation Chemical Engineering Safety, Risk, Reliability and Quality

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Comparability and compatibility of proficiency testing results in schemes with a limited number of participants

A new approach in assessing microbiological results in water analysis proficiency testing

Comparability of PT schemes – what did we learn from COEPT?

IFA Test Proficiency Testing Scheme

Announcement of Proficiency Testing Schemes

Announcement of Proficiency Testing Schemes

Announcement of Proficiency Testing Schemes

Proficiency testing of wastewater sampling: What did we learn?

Bias analysis of proficiency testing programme results

Local comparability of proficiency testing results: determination of concrete slump and compressive strength values

Similar Documents

Comparability and compatibility of proficiency testing results in schemes with a limited number of participants

A new approach in assessing microbiological results in water analysis proficiency testing

Comparability of PT schemes – what did we learn from COEPT?

IFA Test Proficiency Testing Scheme

Announcement of Proficiency Testing Schemes

Announcement of Proficiency Testing Schemes

Announcement of Proficiency Testing Schemes

Proficiency testing of wastewater sampling: What did we learn?

Bias analysis of proficiency testing programme results

Local comparability of proficiency testing results: determination of concrete slump and compressive strength values