Progress towards the establishment of an international chemical measurement system, Bernard King; accrediting environmental lead testing laboratories, J.W. Locke and A.A. Liabastre; the use of statistics in developing intra-laboratory method validation guidelines, S.M. Anderson and J. Ngeh-Ngwainbi; the improvement of quality of observed values, justification for using intermediate precision conditions (ISO 5725 Part 3), Takashi Miayazu and Hisashi Yamamoto; performance based quality assurance of the NOAA national status and trends project, A.Y. Cantillo and G.G. Lauenstein; evaluation of trace organic NOAA national status and trends quality assurance project performance, A.Y. Cantillo and R.M. Parris; operating under US FDA and US EPA good laboratory practices, James A. Ault; management and motivation in quality assurance - the human element in proficiency, Trean Korbelak Blumenthal; quality assurance in the hazardous waste industry - a multiple laboratory quality control programme, Eugene J. Klesta; missing aspects in quality control, Robert W. Dabeka and Stephen Hayward; experience with the IUPAC-1987 harmonized protocol for method-performance studies - suggestions for revision and application to internal quality control systems, William Horwitz and Richard Albert; measures of internal quality assurance to be taken at the occurrence of extreme results, Ch-G. de Boroviczeny; new approaches to automation and standardization of tests for platelet storage lesion and activation state, M.J. Seghatchian and J.F.A. Stivala; reference materials, reference values of statistical tests in the quality assurance schemes of analytical laboratories, L. Paksy and M. Parkany; reference materials for quality control in water microbiology, K.A. Mooijman et al; quality assurance procedures schemes for analysis of residues in meat in the Mercosur countries, Alfredo M. Montes Nino and Oscar D. Rampini; translation of AOAC methods for use by technicians in the laboratory to obtain quality in their analyses, David N. Holcomb; toxic trace elements in Chilean seafoods - development of analytical quality control procedures, I. Do Gregori et al; Philippine interlaboratory test programme on proximate and mineral analyses of foods, T.R. Portugal et al; international survey on dietary fibre definition, analysis and reference materials, S.C. Lee et al; general terms and their definitions concerning standardization and related activities.
