ACCREDITATION AND QUALITY ASSURANCE

Valid machine learning algorithms for multiparameter methods

Improving laboratory economic and environmental performance by the implementation of an environmental management system

Modelling European quality assurance procedures for analysers monitoring emissions under the EU’s Industrial Emissions Directive

Upgrading the Iranian national laboratory standard to conform to ISO 15189:2012

Direct analysis of free-base nicotine in tobacco leaf by headspace solid-phase micro-extraction combined with gas chromatography/mass spectrometry

Designing a formulation of synthetic wastewater as proficiency testing sample: a feasibility study on a laboratory scale

Principles for the characterisation and the value assignment of the candidate reference material in the new ISO Guide 35:2017

Revision of ISO 19229 to support the certification of calibration gases for purity

Development of a certified reference material for lead in noodles powder

Traceability as a tool aiding food safety assurance on the example of a food-packing plant

Purity assessment using the mass balance approach for inorganic in-house certified reference material production at Inmetro

Measurement of organochlorine pesticides in drinking water: laboratory technical proficiency testing in Mexico

Evaluation of measurement uncertainty in the elemental analysis of sintered silicon carbide using laser ablation in liquid—inductively coupled plasma mass spectrometry with external calibration and isotope dilution

Changing the status of mmHg

Preparation of items for a textile proficiency testing scheme

Data integrity: requirements set in the accreditation standards

Analytical validation of tests in laboratories of anatomic pathology: a Belgian population-based study

Determining modified reaction parameters for the real-time measurement of BTEX in biogas and nitrogen using Selected Ion Flow Tube Mass Spectrometry (SIFT-MS)

Verifying and assigning own target values and ranges for internal quality control

Determination and quality evaluation of Zhilou lotion by quantitative analysis of multicomponent with a single marker

Enumeration of lactic acid bacteria: lacuna and improvement areas highlighted by proficiency testing

Alternative designs for the assessment of homogeneity: use of characterisation data

External quality assessment for molecular diagnostic laboratories in Belgium: Can we improve it?

Proficiency testing for total mercury in oyster with a metrologically traceable reference value from isotope dilution mass spectrometry: implications on laboratory practices using mercury analyzers

Optimization of peak area precision of a GC–MS drug screening method using a nonparametric sign test

Compliance with good manufacturing practices for medicines in Brazil

Quantitative scores for binary qualitative proficiency testing

Assessing the performance of measurement devices for continuously monitoring of organic matter and nutrient in river water

Results of a proficiency testing on the calibration of clinical liquid-in-glass thermometer

Application of classification methods to analyze chemicals in drinking water quality

Verification of nitrous oxide primary standard gas mixtures by gas chromatography and cavity ring-down spectroscopy for ambient measurements in South Africa

Report on the 42nd meeting of ISO/REMCO

Development of a usability scale based on the three ISO 9241-11 categories “effectiveness,” “efficacy” and “satisfaction”: a technical note

Quality management in research: management process of the laboratories of Moroccan faculties of sciences and techniques

Portorož welcomed back the PT/EQA community

Future requirements for non-decimal unit prefixes in chemical measurement

Fifteenth International Symposium on Biological and Environmental Reference Materials (BERM-15)

Report on the 41st meeting of ISO/REMCO

Preparation of matrix reference material for quality assurance and control of pesticides analysis in olive oil

Comparisons between reproducibility standard deviations (SDR) derived from proficiency tests and from collaborative trials: mycotoxins in food

First Indonesian proficiency testing using reference value from isotope dilution mass spectrometry method for benzoic acid, methyl paraben, and n-butyl paraben in sweet soy sauce

Rounding the expanded uncertainty

Fifteen years of proficiency testing of total petrol hydrocarbon determination in soil: a story of success

Preparation of a reserpine certified reference material for calibration and analysis of liquid chromatography