scholarly journals Quality assurance of test results for the determination of Ingress Protection Code for Ex equipment enclosures

2021 ◽  
Vol 342 ◽  
pp. 01010
Author(s):  
Dan Gabor ◽  
Niculina Vătavu ◽  
Mihai Cătălin Popa ◽  
Florin Păun ◽  
Adrian Marius Jurca
Keyword(s):  
Quality Assurance ◽  
Proficiency Testing ◽  
Laboratory Testing ◽  
Test Results ◽  
International Protection ◽  
Product Certification ◽  
Testing Laboratories ◽  
Certification Body ◽  
Conformity Assessment Body

INSEMEX-OEC is a Conformity Assessment Body for certification activities in accordance with ATEX Directive 2014/34/EU, being accredited by RENAR and notified to Brussels (NB1809). INSEMEXGLI (Group of Testing Laboratories) is the main provider of laboratory testing services for the product certification body INSEMEX-OEC. The test laboratories meet the requirements of the standard SR EN ISO / IEC 17025. This standard requires laboratories to have a procedure in place to monitor the validity of the test results. This monitoring must be planned and, if possible, should include participation in inter-laboratory comparisons or proficiency testing programs. This paper presents some specific issues highlighted during the successful participation of INSEMEX-GLI in a round of inter-laboratory comparisons organized by the Physikalisch-Technische Bundesanstalt from Germany to determine International Protection Code (IP Code) for equipment enclosures.

scholarly journals Use of standard samples for qualification inspections of testing laboratory for analysis safety of meat and meat products

2021 ◽  
pp. 45-53
Author(s):  
L. K. Baybolova ◽  
A. K. Khaimuldinova ◽  
Zh. B. Asirzhanova
Keyword(s):  
Proficiency Testing ◽  
Meat Products ◽  
Test Preparation ◽  
Test Results ◽  
Standard Samples ◽  
Comparative Testing ◽  
Testing Laboratory ◽  
Testing Program ◽  
Testing Laboratories ◽  
Qualification Testing

This article provides insights into qualification testing, interlaboratory comparative testing, and qualification testing programs in testing laboratories that analyze the safety of meat and meat products. Samples with codes OK-MB- 21 were used as a model for interlaboratory comparisons. The uniformity and stability of the CC code was assessed in accordance with GOST R 50779.60-2017 “Statistical methods. Application in proficiency testing through interlaboratory testing ”. Seven laboratories participated in the proficiency testing program. The test preparation procedure was described and the test results determined whether each sample tested was satisfactory or questionable. Participants with unsatisfactory results are encouraged to identify the causes of the alarms, take corrective actions and document them, and identify and eliminate the causes of the unsatisfactory results.

scholarly journals Chemistry proficiency testing programs at national institute for food control (NIFC) in the year 2017

2018 ◽  
Vol 1 (2) ◽  
pp. 40-48
Author(s):  
Cuong Dang Huu ◽  
Keyword(s):  
Quality Assurance ◽  
Quality Management ◽  
Proficiency Testing ◽  
Health Sector ◽  
Management Program ◽  
Technical Competence ◽  
Food Control ◽  
Testing Program ◽  
Testing Laboratories

National Institute for Food Control Proficiency testing plays a very important role in ensuring the quality of testing. Based on the results of the proficiency testing, the managers as well as the relevant members could assess the technical competence of the laboratory. Participating in proficiency testing is an evidence that a laboratory is implementing a quality management program in accordance with ISO/IEC 17025. Through the proficiency testing program, the participating laboratories themselves could evaluate their capabilities and address the causes affecting the quality of tests so as to take measures to ensure better quality assurance. This study provides a snapshot of the testing capacity of food testing laboratories within and outside the health sector based on chemistry proficiency testing conducted by the National Institute for Food Control (NIFC) in 2017.

scholarly journals EVALUASI HASIL UJI PROFISIENSI UNTUK KOMODITI AIR MINUM DALAM KEMASAN

2008 ◽  
Vol 8 (3) ◽  
pp. 111
Author(s):  
Setyodewati Setyodewati ◽  
Untari Pudjiastuti
Keyword(s):  
Drinking Water ◽  
Proficiency Testing ◽  
Laboratory Testing ◽  
The Other ◽  
Z Score ◽  
Testing Program ◽  
Testing Sample ◽  
Testing Laboratories ◽  
Bottled Drinking Water ◽  
Score Analysis

KAN proficiency testing program on the bottled drinking water conducted on 2004 was participated by 46 testing laboratories. Participant laboratories were asked to test the sample for nitrat, nitrit, ammonium, sulphate Cl, Cn, F, F, Fe, Mn, Pb, Cu, Cd, As and Hg contents. Proficiency testing sample were prepared by provider, which also conduct homogeinity test for the Hg and Cu contents of the sample. As the sample was judged to be homogen, they sent to participant laboratory in 2 packs identified as sample KAN A and KAN B. Laboratory testing results were analyzed by statistical method, started on homogeinity of data, Dixon test and Z-score. The evaluation results shows that only sulphate, Cl, F, Fe and Cu contents could be analyzed among the other 14 parameters, which is could not be evaluated because of the in homogeinity of data provided by the laboratories. The inhomogeinity of data was caused by insufficiency of laboratory’s personnel and equipments. The evaluation of proficiency testing results for sulphate, Cl, F, Fe and Cu contents show only 1 satisfactory result among 5 accredited participants, and 9 satisfactory results among 39 non-accredited participants. The conclusion is based on the Z-score analysis of the evaluated parameters.

scholarly journals Profile of system and product certification as quality infrastructure in Indonesia

2021 ◽  
Vol 11 (1) ◽  
pp. 556-569
Author(s):  
Febrian Isharyadi ◽  
E. Kristiningrum
Keyword(s):  
Quality Assurance ◽  
Third Party ◽  
Product Certification ◽  
Certification Body ◽  
Quality Of Products ◽  
Quality Infrastructure ◽  
Universal Standard

Abstract Quality is a universal standard that is expected by consumers of a product or service used. Consumers in general cannot individually assess this quality, with the help of an independent third party it can be done. The certification body is one element in the quality infrastructure that plays a role in providing quality assurance of products and services according to applicable standards. There are various certification bodies in Indonesia both for system and product certification, the kinds additionally range in accordance to the scope of certification. However, it is not yet known generally the condition of the system and product certification in Indonesia. The aim of this study is to conduct profiling and analyse the condition of the system and product certification in Indonesia using a comprehensive tool in order to assess part of the quality of a country's infrastructure. The results showed that there were several elements that were fulfilled, especially in terms of legality and national recognition. However, some elements still need improvement so that the certification body can do its part to ensure the quality of products and services.

scholarly journals Evaluation the capacity of microbiological laboratories through proficiency testing programs in 2017

2018 ◽  
Vol 1 (2) ◽  
pp. 14-20
Author(s):  
Hang Nguyen Thi ◽  
Huong Doan Thi ◽  
◽  
Keyword(s):  
Quality Assurance ◽  
Proficiency Testing ◽  
Functional Food ◽  
Statistical Processing ◽  
Pass Rate ◽  
Plate Count ◽  
Test Results ◽  
Food Control ◽  
E Coli ◽  
Total Plate Count

In the context of international integration into the WTO, quality assurance in laboratories is an important requirement for providing reliable and highly accurate test results. One of the quality assurance tools currently used by various laboratories is the participation in proficiency testing (TNTT)/ interlaboratory comparisons. In order to assess the capacity of microbiological laboratories throughout the country and respond to the requirements of the customers, the National Institute for Food Control (NIFC) organized 6 biological proficiency testing schemes in food and functional foods in 2017. Based on the statistical processing and z-score calculation, NIFC has made a list of highly satisfactory microbiological laboratories such as such the pass rate of Total Plate Count, E. coli, Coliforms in functional food with 92.9%, 100%, 92.3% ... The highest failure rate of Yeast and Mould in functional food (35.7%) and Coliforms in water (47.8%)... The results showed that the capacity of microbiology laboratories has been increased in both quality and quantity (with the largest number of participants of 89 laboratories).  

A Rapid Method for Determination of Buprenorphine and Norbuprenorphine in Urine by UPLC-MS/MS

2020 ◽  
Vol 16 ◽  
Author(s):  
Aykut Kul ◽  
Murat Ozdemir ◽  
Selma Ozilhan ◽  
Olcay Sagirli
Keyword(s):  
Forensic Science ◽  
Rapid Method ◽  
Proficiency Testing ◽  
Mass Spectrometer ◽  
Illicit Market ◽  
Analysis Methods ◽  
Accuracy And Precision ◽  
Lower Limits

Background: Buprenorphine is quite common in the illicit market. Buprenorphine-containing drugs abuse is frequently encountered in patients. The analysis methods used to determine the abuse of buprenorphine and norbuprenorphine are important for forensic science. Buprenorphine is metabolized to norbuprenorphine by the liver. Objective: Therefore, the determination of buprenorphine and norbuprenorphine in urine is one of the methods to determine the abuse of buprenorphine. Methods: In this study, we have developed a precise, simple, and rapid ultra-performance liquid chromatographytandem mass spectrometer method for the determination of buprenorphine and norbuprenorphine simultaneously. Results: The developed method was validated in terms of selectivity and linearity, which was in the range of 9–1800 ng/mL for both buprenorphine and norbuprenorphine. The intra-assay and inter-assay accuracy and precision were found within acceptable limits of the EMA guideline. Lower limits of quantitation were 9 ng/mL for both buprenorphine and norbuprenorphine. Conclusion: The developed method was successfully applied for the determination of both analytes in the proficiency testing samples.

scholarly journals Interaction Boundary Determination of Renewable Energy Sources to Estimate System Strength Using the Power Flow Tracing Strategy

2021 ◽  
Vol 13 (3) ◽  
pp. 1569
Author(s):  
Namki Choi ◽  
Byongjun Lee ◽  
Dohyuk Kim ◽  
Suchul Nam
Keyword(s):  
Renewable Energy ◽  
Power Flow ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Test Results ◽  
Boundary Determination ◽  
Actual Interaction ◽  
Power Flow Tracing ◽  
Estimate System

System strength is an important concept in the integration of renewable energy sources (RESs). However, evaluating system strength is becoming more ambiguous due to the interaction of RESs. This paper proposes a novel scheme to define the actual interaction boundaries of RESs using the power flow tracing strategy. Based on the proposed method, the interaction boundaries of RESs were identified at the southwest side of Korea Electric Power Corporation (KEPCO) systems. The test results show that the proposed approach always provides the identical interaction boundaries of RESs in KEPCO systems, compared to the Electric Reliability Council of Texas (ERCOT) method. The consistent boundaries could be a guideline for power-system planners to assess more accurate system strength, considering the actual interactions of the RESs.

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