Wageningen Evaluating Programmes for Analytical Laboratories (WEPAL): A world of experience

Communications in Soil Science and Plant Analysis

Volumn 33, Issue 15-18, 2002, Pages 2457-2465

  Van Dijk, Dirkje ^a  

^a WAGENINGEN UNIVERSITY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

SOIL SCIENCE;

ACCREDITATION; AGRICULTURE; CHEMICAL ANALYSIS; COMPUTER PROGRAM; CONFERENCE PAPER; ENVIRONMENTAL FACTOR; EVALUATION; INFORMATION PROCESSING; LABORATORY TEST; MEASUREMENT; NETHERLANDS; PHYTOCHEMISTRY; QUALITY CONTROL; SEDIMENTATION; SOIL CHEMISTRY; SOIL QUALITY; VALIDATION PROCESS;

EID: 0036420481     PISSN: 00103624     EISSN: None     Source Type: Journal    
DOI: 10.1081/css-120014460     Document Type: Conference Paper

References (12)

1. Rayment, G.E.; Miller, R.O.; Sulaeman, E. Proficiency testing and other interactive measures to enhance analytical quality in soil and plant laboratories. Commun. Soil Sci. Plant Anal. 2000, 31 (11-14), 1513-1530.
2. Eurachem, Selection, Use and Interpretation of Proficiency Testing (PT) Schemes by Laboratories; Eurachem Nederland, Task Group "Proficiency Testings Schemes" and Laboratory of the Government Chemist (LGC): United Kingdom, 2000.
3. Briggs, P. Proficiency testing: A valuable tool for laboratories, Nata News (website: www.nata.asn.au), 2001.
4. Houba, V.J.G.; Uittenbogaard, J.; Pellen, P. Wageningen evaluating programmes for analytical laboratories (WEPAL). Organization and purpose. Commun. Soil Sci. Plant Anal. 1996, 27 (3 & 4), 421-429.
5. Montfort, M.A.J. Statistical remarks on laboratory - Evaluating programs for comparing laboratories and methods. Soil Sci. Plant Anal. 1996, 27 (3&4), 463-478.
6. van Dijk, D.; Houba, V.J.G.; van Dalen, J.P.J. Aspects of quality assurance within the Wageningen Evaluating Programmes for Analytical Laboratories (WEPAL). Commun. Soil Sci. Plant Anal. 1996, 27 (3&4), 433-439.
7. van Dijk, D.; Houba, V.J.G. Homogeneity and Stability of Materials Distributed Within the wageningen evaluating programmes for analytical laboratories. Commun. Soil Sci. Plant Anal. 2000, 31 (11-14), 1745-1756.
8. ILAC-G13. ILAC Guidelines for the Requirements for the Competence of Providers of Proficiency Testing Schemes, ILAC General Assembly, 2000.
9. ISO/IEC guide 43. Proficiency Testing by Interlaboratory Comparisons - Part 1: Development and Operation of Proficiency Testing Schemes, 2nd Ed.; ISO, IEC: Switzerland, 1997.
10. Houba, V.J.G. A device for automatic subsampling of soil, sediment and plant material for proficiency testing. Fresenius J. Anal. Chem. 1993, (345), 56-157.
11. Thompson, M.; Wood, R. The international harmonized protocol for the proficiency testing of (chemical) analytical laboratories. Pure Appl. Chem. 1993, (65), 2123-2144.
12. Chetty, P.M.; van Dijk, D. The establishment and use of a reference material as a control sample. Soil. Sci. Plant Anal. 2002, 33 (15-18), 2653-2659.