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By M. Fickelson

Trying out of fabrics and synthetic goods is a key aspect within the approach from common requirements even though regulate and verification in the course of manufacture to alternate in real items. Cooperative agreements and networks are being arrange masking reference fabrics and calibration. This procedure is changing into extra pressing with the improvement within the eu industry and different overseas advancements. This ebook provides foreign perspectives in this quick altering box, with the most issues of: technical elements of try caliber; caliber coverage in checking out laboratories; laboratory accreditation and transnational popularity of try effects.

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Test Quality for Construction, Materials and Structures: Proceedings of the International RILEM ILAC Symposium (RILEM Proceedings)

Checking out of fabrics and synthetic goods is a key aspect within the approach from ordinary standards although keep watch over and verification in the course of manufacture to alternate in real items. Cooperative agreements and networks are being manage overlaying reference fabrics and calibration. This approach is turning into extra pressing with the improvement within the eu marketplace and different overseas advancements.

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Additional info for Test Quality for Construction, Materials and Structures: Proceedings of the International RILEM ILAC Symposium (RILEM Proceedings)

Sample text

Frequent exercise and continuous comparisons are also a pre-requisite for attaining and maintaining a high quality in testing. This is demonstrated using the experiences reported at the Rilem-Workshop “Evaluation of Cement and Concrete Laboratory Performance” 1989 in Tel Aviv. When testing cement for strength the deviations between well equipped laboratories may be twice that of laboratories which test very frequently and are connected by frequent comparative tests. 1 Introduction So far as building materials are concerned the interest in the precision of test methods often was a rather theoretical one in former years: The actual quality was considerably above requirements, the materials were not exported to other countries and they were tested always by the same laboratories well known to the customers.

High quality equipment, good staff, and an excellent quality assurance manual alone do not guarantee satisfactory precision. Frequent exercise and continuous comparisons are also a pre-requisite for attaining and maintaining a high quality in testing. This is demonstrated using the experiences reported at the Rilem-Workshop “Evaluation of Cement and Concrete Laboratory Performance” 1989 in Tel Aviv. When testing cement for strength the deviations between well equipped laboratories may be twice that of laboratories which test very frequently and are connected by frequent comparative tests.

17 (see Annex 1). Measurement audits are part of the assessment procedure and surveillance scheme. In these respects the laboratory accreditation schemes for calibration and measurement laboratories differ from the schemes for the accreditation of testing laboratories. In general however they apply the same rules [5] and are organized in a similar way [6]. In the EC and EFTA (European Free Trade Association) the national calibration services mentioned in table 1 (and representatives of Greece, where a calibration service will be set up in the near Calibration and maintenance of testing equipment 35 Table 1.

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