NF EN ISO 8655-7
Piston-operated volumetric apparatus - Part 7 : non-gravimetric methods for the assessment of equipment performance
ISO 8655-7:2005 specifies the photometric and titrimetric determination of errors of measurement of piston-operated volumetric apparatus. The tests are applicable to complete systems comprising the basic apparatus and all parts selected for use with the apparatus, disposable or reusable, involved in the measurement by delivery process.These non-gravimetric test methods can be applied: as aids to quality assurance by the supplier; as routine quality assurance and routine calibrations by the user; and as routine and post-repair testing. The methods described in ISO 8655-7:2005 are not applicable as alternatives to the gravimetric reference test methods specified in ISO 8655-6, which gives the only method suitable as a basis for supplier's declarations or independent certification of conformity. NOTE 1 Metrological requirements for piston-operated volumetric apparatus, especially maximum permissible errors, are specified in ISO 8655-2 to ISO 8655-5.NOTE 2 For conformity tests or type tests for declaration and certification of conformity, see the gravimetric reference test methods in ISO 8655-6.
ISO 8655-7:2005 specifies the photometric and titrimetric determination of errors of measurement of piston-operated volumetric apparatus. The tests are applicable to complete systems comprising the basic apparatus and all parts selected for use with the apparatus, disposable or reusable, involved in the measurement by delivery process.
These non-gravimetric test methods can be applied: as aids to quality assurance by the supplier; as routine quality assurance and routine calibrations by the user; and as routine and post-repair testing.
The methods described in ISO 8655-7:2005 are not applicable as alternatives to the gravimetric reference test methods specified in ISO 8655-6, which gives the only method suitable as a basis for supplier's declarations or independent certification of conformity.
NOTE 1 Metrological requirements for piston-operated volumetric apparatus, especially maximum permissible errors, are specified in ISO 8655-2 to ISO 8655-5.
NOTE 2 For conformity tests or type tests for declaration and certification of conformity, see the gravimetric reference test methods in ISO 8655-6.
This document specifies alternative measurement procedures for the determination of volume of piston-operated volumetric apparatus. The procedures are applicable to complete systems comprising the basic apparatus and all parts selected for use with the apparatus, disposable or reusable, involved in the measurement by delivery process (Ex). Methods described in this document are suitable for various maximum nominal volumes of piston-operated volumetric apparatus. It is the responsibility of the user to select the appropriate method.
- Avant-proposiv
- Introductionv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes et définitions2
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4 Principe2
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4.1 Méthode photométrique2
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4.2 Méthode titrimétrique2
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5 Réactifs3
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5.1 Réactifs pour la méthode photométrique3
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5.2 Réactifs pour la méthode titrimétrique4
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6 Appareillage4
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6.1 Méthode photométrique4
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6.2 Méthode titrimétrique5
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7 Conditions d'essai5
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8 Mode opératoire5
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8.1 Généralités5
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8.2 Méthode photométrique6
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8.3 Méthode titrimétrique6
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9 Calculs6
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10 Rapport d'essai6
- Annexe A (informative) Exemple 1 de méthode d'essai photométrique7
- Annexe B (informative) Exemple 2 de méthode d'essai photométrique13
- Annexe C (informative) Exemple de méthode d'essai titrimétrique17
- Bibliographie21
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