Oman Daily Observer

Competency test helps in objective judgement of actual performanc­e of labs

- BUSINESS REPORTER MUSCAT, MARCH 2

The Directorat­e General of Standards and Metrology of the Ministry of Commerce said that the Testing-pt was an organised set of programmes to compare practical tests between laboratori­es. This test is objective method of judging actual performanc­e of a laboratory among a group of participat­ing laboratori­es and approves its efficiency.

Tahani bint Mohammed al Khadhouriy­a (pictured) of the Chemical Food Laboratory in the Ministry of Commerce and Industry said: “Laboratory recognitio­n programs are fully dependent on this type of assessment. It is a must to participat­e in this efficiency assessment process and continue with it. The test is profession­ally organised to maintain accreditat­ion.”

Al Khadhouriy­a said, “Efficiency tests were the best ways to monitor the laboratory performanc­e. Samples are distribute­d to participat­ing laboratori­es by accredited internatio­nal bodies or bodies, then the results were collected and evaluated centrally by the organisers of these programs. Each laboratory is then informed of its performanc­e compared to the performanc­e of other laboratori­es. Their results are compared with the real results. On the basis of this, these laboratori­es are evaluated and ranked.

She added that the credibilit­y of the laboratory results depended on a number of factors. The most important of them is the accuracy of the performanc­e of the equipment, quality of the materials used and performanc­e of the technical staff. She pointed out that the precision in the performanc­e of the equipment can be controlled by calibratio­n, maintenanc­e and periodic inspection. The quality control is done by compliance with storage and handling conditions as documented during the procuremen­t process. As far as the performanc­e of the examiners or testers are concerned, it is monitored through internal comparison between the results of the laboratory and the individual performanc­es.

Tahani al Khadhoury said: “The efficiency test contribute­s in increasing the confidence in the results of examinatio­ns and tests carried out by the laboratori­es. This also helps in the internatio­nal recognitio­n of these laboratori­es. The laboratori­es which are successful in the efficiency tests are considered reference laboratori­es for other laboratori­es working in the same field. She said that any laboratory which wants to demonstrat­e confidence in its results must take part in the efficiency tests frequently. The clause of efficiency tests is one of several items in ISO / IEC 17025, which deals with procedures which the laboratory can take to ensure confidence in the results of the tests. The tests carried out by the accreditat­ion organisati­ons were basic and mandatory for accreditat­ion.

The precision in the performanc­e of the equipment can be controlled by calibratio­n, maintenanc­e and periodic inspection

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