International Harmonized Protocol

Thompson M, Wood R (1993) International harmonized protocol for proficiency testing of (chemical) analytical laboratories. J of AOAC Intern 76 926-937. [Pg.153]

IUPAC (1993) Analytical Chemistry Division, Commission on General Aspects of Analytical Chemistry The International Harmonized Protocol for the Proficience Testing of (Chemical) Analytical Laboratories. Pure Appl Chem 65 2123... [Pg.285]

There are some guidelines on the requirements for proficiency testing schemes. The most important is the new ISO/IEC 17043 Conformity assessment - General requirements for proficiency testing . It describes the development and operation of a PT scheme with all quality management requirements related to that. The first version of the International Harmonized Protocol for the Proficiency Testing of (Chemical) Analytical Laboratories was a result of a joint workshop of lUPAC, ISO and AOAC and was published in 1993. A 2nd, revised version was published in 2006. This protocol also sets out the requirements for the provider and for the PT scheme itself. [Pg.306]

This is easier for true solutions, because they are homogeneous at a molecular level. For solid samples this is more difficult and special methods must be applied to ensure homogeneity. A procedure using ANOVA techniques for the check for homogeneity is described in the International Harmonized Protocol. [Pg.309]

A homogeneity check on the basis of ANOVA is described in the. .International harmonized protocol..."... [Pg.309]

In the International Harmonized Protocol two possibihties for combined assessments are specified. [Pg.319]

Combined Assessment According to Intern. Harmon. Protocol... - RSZ... [Pg.319]

Thompson M, Ellison SLR, Wood R (2006) The international harmonized protocol for the proficiency testing of analytical chemistry laboratories. Pure Appl. Chem. 78, 145-196... [Pg.326]

Participance in Proficiency Testing Schemes Proficiency testing (PT) is the periodic assessment of the competency or the analytical performance of individual participating laboratories [23]. An independent coordinator distributes individual test portions of a typical uniform test material. The participating laboratories analyze the materials by their method of choice and return the results to the coordinator. Test results obtained by different laboratories are subsequently compared with each other and the performance of each participant evaluated based on a single competency score [64,107]. International harmonized protocols exist for the organization of PT schemes [59,60,64,69,79]. [Pg.780]

Well-designed proficiency studies provide a good estimate of the method bias. Several protocols and statistical methodologies have been developed for assessing this bias, for example, ISO 5725-4 [28], International Harmonized Protocol for Proficiency studies [29], and Youden plot [30],... [Pg.148]

Regulations on proficiency testing Yes, Art. 3 of Directive 93/99/EEC, International Harmonized Protocol [5] (according to Council minutes [6]) No (indirect collaborative trials, managed by reference laboratories)... [Pg.160]

The AOAC Official Methods Program is designed to provide analytical methods for which the performance characteristics have been validated to the highest degree of confidence recognized by an internationally harmonized protocol through an independent multiple laboratory study [ ] ... [Pg.164]

The objective of the statistical procedure employed is to obtain a simple and transparent result, which the participant and other interested parties can readily appreciate. The procedure follows that recommended in the lUPAC/ISO/AOAC International Harmonized Protocol for the Proficiency Testing of Analytical Laboratories. The z scores are calculated as ... [Pg.342]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...