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<p class="MsoBodyText"><span lang="EN-GB">The objective of this document is to characterize the gaseous effluents tritium and carbon-14 generated by nuclear facilities during operation and decommissioning and occurring in the same chemical species as hydrogen and carbon, e. g. as water vapour (HTO), hydrogen gas (HT, TT), carbon dioxide (<sup>14</sup>CO<sub>2</sub>), carbon monoxide (<sup>14</sup>CO), methane (CH<sub>3</sub>T, <sup>14</sup>CH<sub>4</sub>). It concerns measurements on samples that are representative of a certain volume stream or volume of discharge during a given period of time and of the corresponding volume discharged. The result is therefore expressed in becquerels.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This document applies to samples that were obtained by sampling methods according to ISO 20041-1<sup>[</sup><!-- [if supportFields]><sup><span style='color:#0070C0'><span
style='mso-element:field-begin'></span></span></sup><span style='color:#0070C0'>
REF Reference_ref_10 \r \h <sup><span style='mso-element:field-separator'></span></sup></span><![endif]--><sup><span style="color: #0070c0;">9<!-- [if gte mso 9]><xml>
<w:data>08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000110000005200650066006500720065006E00630065005F007200650066005F00310030000000</w:data>
</xml><![endif]--></span></sup><!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-end'></span></span></sup><![endif]--><sup>]</sup> and describes</span></p>
<p class="ListContinue1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">analysis methods for the determination of tritium and carbon-14 activities by liquid scintillation counting, and</span></p>
<p class="ListContinue1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">calculation methods to determine the tritium activities discharged as tritiated water vapour (HTO) and tritium in other chemical compounds (non-HTO) as well as carbon-14 activities discharged as carbon dioxide (<sup>14</sup>CO<sub>2</sub>) and carbon-14 in other chemical compounds (non-<sup>14</sup>CO<sub>2</sub>).</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This document does not apply to tritium and carbon-14 activity concentrations in the environmental air, e.g. in the vicinity of nuclear installations.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The accountability rules of the activities discharged necessary for the establishment of regulatory reports do not fall within the scope of this document and are the responsibility of the regulatory bodies.</span></p>
Reģistrācijas numurs (WIID)
78795
Darbības sfēra
<p class="MsoBodyText"><span lang="EN-GB">The objective of this document is to characterize the gaseous effluents tritium and carbon-14 generated by nuclear facilities during operation and decommissioning and occurring in the same chemical species as hydrogen and carbon, e. g. as water vapour (HTO), hydrogen gas (HT, TT), carbon dioxide (<sup>14</sup>CO<sub>2</sub>), carbon monoxide (<sup>14</sup>CO), methane (CH<sub>3</sub>T, <sup>14</sup>CH<sub>4</sub>). It concerns measurements on samples that are representative of a certain volume stream or volume of discharge during a given period of time and of the corresponding volume discharged. The result is therefore expressed in becquerels.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This document applies to samples that were obtained by sampling methods according to ISO 20041-1<sup>[</sup><!-- [if supportFields]><sup><span style='color:#0070C0'><span
style='mso-element:field-begin'></span></span></sup><span style='color:#0070C0'>
REF Reference_ref_10 \r \h <sup><span style='mso-element:field-separator'></span></sup></span><![endif]--><sup><span style="color: #0070c0;">9<!-- [if gte mso 9]><xml>
<w:data>08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000110000005200650066006500720065006E00630065005F007200650066005F00310030000000</w:data>
</xml><![endif]--></span></sup><!-- [if supportFields]><sup><span
style='color:#0070C0'><span style='mso-element:field-end'></span></span></sup><![endif]--><sup>]</sup> and describes</span></p>
<p class="ListContinue1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">analysis methods for the determination of tritium and carbon-14 activities by liquid scintillation counting, and</span></p>
<p class="ListContinue1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">calculation methods to determine the tritium activities discharged as tritiated water vapour (HTO) and tritium in other chemical compounds (non-HTO) as well as carbon-14 activities discharged as carbon dioxide (<sup>14</sup>CO<sub>2</sub>) and carbon-14 in other chemical compounds (non-<sup>14</sup>CO<sub>2</sub>).</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This document does not apply to tritium and carbon-14 activity concentrations in the environmental air, e.g. in the vicinity of nuclear installations.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The accountability rules of the activities discharged necessary for the establishment of regulatory reports do not fall within the scope of this document and are the responsibility of the regulatory bodies.</span></p>
