The article is devoted to the comparison of two approaches determining purity metal salts on example a complex in composition object - flotation potassium chloride. results mass fraction main component (potassium chloride) chloride obtained by direct (using coulometric titration method with correction for anions titrated determined ion and an excess cations) indirect (according scheme 100% minu...

The National Metrology Laboratory of the Philippines, Industrial Technology Development Institute under Department Science and (ITDI-DOST) offered first its kind interlaboratory comparison in pressure measurement country following a demand survey identifying gaps proving competency local calibration laboratories. This paper presents development implementing two comparisons Philippines with six ...

ME1111 is a novel small molecule antifungal agent under development for the topical treatment of onychomycosis. Standardization of the susceptibility testing method for this candidate antifungal is needed. Toward this end, 8 independent laboratories determined the interlaboratory reproducibility of ME1111 susceptibility testing. In addition, we subsequently identified 2 strains as quality contr...

AIM To assess the effect of a lyophilised calibrant plasma procedure on the international normalised ratio (INR) and its interlaboratory variation. METHODS INR equivalent values were assigned to five lyophilised plasmas (one from normal donors and four from coumarin treated patients) by a reference laboratory using three calibrated thromboplastin reagents. The calibrant plasmas and five artif...

Inductively coupled plasma mass spectrometry (ICP-MS) is becoming more widely used for trace elemental analysis in the occupational hygiene field, and consequently new ICP-MS international standard procedures have been promulgated by ASTM International and ISO. However, there is a dearth of interlaboratory performance data for this analytical methodology. In an effort to fill this data void, an...

Data were accumulated during interlaboratory trials for cheese moisture determination from laboratories using officially recognized methods: AOAC; International Dairy Federation, and Standard Methods for the Examination of Dairy Products (SM). In one trial, ranges of means of 5 cheeses were 0.67, 0.56, and 0.19% for 5, 9, and 8 laboratories, respectively. The lower ranges for the SM method were...