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<p><span lang="EN-GB">This document specifies approaches for the estimation of measurement uncertainty of chemical and physicochemical methods in single laboratories based on validation data and quality control data obtained within the field of water analysis. However, this approach can also be used in many other areas of chemical analysis.</span></p>
<p><span lang="EN-GB">NOTE 1 The principles of the estimation of uncertainty specified in this document are consistent with the principles described in ISO/IEC Guide 98-3.</span></p>
<p><span lang="EN-GB">In this document, the quantification of measurement uncertainty relies on performance characteristics of a measurement procedure obtained from validation and the results of internal and external quality control.</span></p>
<p><span lang="EN-GB">NOTE 2 The approaches specified in this document are mainly based on Nordtest TR 537[<!-- [if supportFields]><sup><span style='color:#0070C0'><span
style='mso-element:field-begin'></span></span></sup><span style='color:#0070C0'>
REF Reference_ref_4 \r \h <sup><span style='mso-element:field-separator'></span></sup></span><![endif]-->3<!-- [if gte mso 9]><xml>
<w:data>08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0034000000</w:data>
</xml><![endif]--><!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-end'></span></span></sup><![endif]-->], but also QUAM[<!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-begin'></span></span></sup><span
style='color:#0070C0'> REF Reference_ref_5 \r \h <sup><span style='mso-element:
field-separator'></span></sup></span><![endif]-->4<!-- [if gte mso 9]><xml>
<w:data>08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0035000000</w:data>
</xml><![endif]--><!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-end'></span></span></sup><![endif]-->], and Eurolab TR 1/2007[<!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-begin'></span></span></sup><span
style='color:#0070C0'> REF Reference_ref_3 \r \h <sup><span style='mso-element:
field-separator'></span></sup></span><![endif]-->2<!-- [if gte mso 9]><xml>
<w:data>08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0033000000</w:data>
</xml><![endif]--><!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-end'></span></span></sup><![endif]-->].</span></p>
<p><span lang="EN-GB">NOTE 3 This document only addresses the evaluation of measurement uncertainty for results obtained from quantitative measurement procedures. The uncertainties associated with results obtained from qualitative procedures are not considered.</span></p>
Reģistrācijas numurs (WIID)
86833
Darbības sfēra
<p><span lang="EN-GB">This document specifies approaches for the estimation of measurement uncertainty of chemical and physicochemical methods in single laboratories based on validation data and quality control data obtained within the field of water analysis. However, this approach can also be used in many other areas of chemical analysis.</span></p>
<p><span lang="EN-GB">NOTE 1 The principles of the estimation of uncertainty specified in this document are consistent with the principles described in ISO/IEC Guide 98-3.</span></p>
<p><span lang="EN-GB">In this document, the quantification of measurement uncertainty relies on performance characteristics of a measurement procedure obtained from validation and the results of internal and external quality control.</span></p>
<p><span lang="EN-GB">NOTE 2 The approaches specified in this document are mainly based on Nordtest TR 537[<!-- [if supportFields]><sup><span style='color:#0070C0'><span
style='mso-element:field-begin'></span></span></sup><span style='color:#0070C0'>
REF Reference_ref_4 \r \h <sup><span style='mso-element:field-separator'></span></sup></span><![endif]-->3<!-- [if gte mso 9]><xml>
<w:data>08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0034000000</w:data>
</xml><![endif]--><!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-end'></span></span></sup><![endif]-->], but also QUAM[<!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-begin'></span></span></sup><span
style='color:#0070C0'> REF Reference_ref_5 \r \h <sup><span style='mso-element:
field-separator'></span></sup></span><![endif]-->4<!-- [if gte mso 9]><xml>
<w:data>08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0035000000</w:data>
</xml><![endif]--><!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-end'></span></span></sup><![endif]-->], and Eurolab TR 1/2007[<!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-begin'></span></span></sup><span
style='color:#0070C0'> REF Reference_ref_3 \r \h <sup><span style='mso-element:
field-separator'></span></sup></span><![endif]-->2<!-- [if gte mso 9]><xml>
<w:data>08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0033000000</w:data>
</xml><![endif]--><!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-end'></span></span></sup><![endif]-->].</span></p>
<p><span lang="EN-GB">NOTE 3 This document only addresses the evaluation of measurement uncertainty for results obtained from quantitative measurement procedures. The uncertainties associated with results obtained from qualitative procedures are not considered.</span></p>
