Proposal of methodology and test protocol for evaluating and qualifying pH measuring devices

Proposal of methodology and test protocol for evaluating and qualifying pH measuring devices

We present a proposal for evaluating and qualifying pH measuring devices based on the requirements of relevant standards. The proposal presented is based on ASTM E70, NBR 7353, JIS Z 8805, BS 3145, DIN 19268, NBR ISO 17025 and other standards, as well as the results of field research carried out in conjunction with professionals performing pH measurements in public health laboratories. Evaluation is performed by inspection of a form which records data from the measuring system. The form gives acceptable variations in the parameters being tested and allows a conclusion to be reached regarding acceptability of the system. Using the proposed protocol allows definition of suitable analysis criteria, while taking into account the influence pH measurement is subject and the need for correct results. This is particularly true when analyzing products already on the market, thus underlining the protocol's importance to the public health area.

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Main Authors: Almeida,Niza Helena de, Nohama,Percy
Format: Digital revista
Language:English
Published: Instituto de Tecnologia do Paraná - Tecpar 2006
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000200005
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spelling oai:scielo:S1516-891320060002000052006-03-30Proposal of methodology and test protocol for evaluating and qualifying pH measuring devicesAlmeida,Niza Helena deNohama,Percy Quality control pH measurement instrumentation We present a proposal for evaluating and qualifying pH measuring devices based on the requirements of relevant standards. The proposal presented is based on ASTM E70, NBR 7353, JIS Z 8805, BS 3145, DIN 19268, NBR ISO 17025 and other standards, as well as the results of field research carried out in conjunction with professionals performing pH measurements in public health laboratories. Evaluation is performed by inspection of a form which records data from the measuring system. The form gives acceptable variations in the parameters being tested and allows a conclusion to be reached regarding acceptability of the system. Using the proposed protocol allows definition of suitable analysis criteria, while taking into account the influence pH measurement is subject and the need for correct results. This is particularly true when analyzing products already on the market, thus underlining the protocol's importance to the public health area.info:eu-repo/semantics/openAccessInstituto de Tecnologia do Paraná - TecparBrazilian Archives of Biology and Technology v.49 n.spe 20062006-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000200005en10.1590/S1516-89132006000200005
institution SCIELO
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country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Almeida,Niza Helena de
Nohama,Percy
spellingShingle Almeida,Niza Helena de
Nohama,Percy
Proposal of methodology and test protocol for evaluating and qualifying pH measuring devices
author_facet Almeida,Niza Helena de
Nohama,Percy
author_sort Almeida,Niza Helena de
title Proposal of methodology and test protocol for evaluating and qualifying pH measuring devices
title_short Proposal of methodology and test protocol for evaluating and qualifying pH measuring devices
title_full Proposal of methodology and test protocol for evaluating and qualifying pH measuring devices
title_fullStr Proposal of methodology and test protocol for evaluating and qualifying pH measuring devices
title_full_unstemmed Proposal of methodology and test protocol for evaluating and qualifying pH measuring devices
title_sort proposal of methodology and test protocol for evaluating and qualifying ph measuring devices
description We present a proposal for evaluating and qualifying pH measuring devices based on the requirements of relevant standards. The proposal presented is based on ASTM E70, NBR 7353, JIS Z 8805, BS 3145, DIN 19268, NBR ISO 17025 and other standards, as well as the results of field research carried out in conjunction with professionals performing pH measurements in public health laboratories. Evaluation is performed by inspection of a form which records data from the measuring system. The form gives acceptable variations in the parameters being tested and allows a conclusion to be reached regarding acceptability of the system. Using the proposed protocol allows definition of suitable analysis criteria, while taking into account the influence pH measurement is subject and the need for correct results. This is particularly true when analyzing products already on the market, thus underlining the protocol's importance to the public health area.
publisher Instituto de Tecnologia do Paraná - Tecpar
publishDate 2006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000200005
work_keys_str_mv AT almeidanizahelenade proposalofmethodologyandtestprotocolforevaluatingandqualifyingphmeasuringdevices
AT nohamapercy proposalofmethodologyandtestprotocolforevaluatingandqualifyingphmeasuringdevices
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