NBN ISO 16659-1:2023

< p class=" MsoBodyText" style=" margin-bottom: 12.0pt mso-layout-grid-align: none text-autospace: none " > < span lang=" EN-GB" style=" mso-bidi-font-size: 12.0pt " > The scope of < span class=" stdpublisher" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > ISO< / span> < / span> < / span>  < span class=" stddocNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > 16659< / span> < / span> < / span> < span class=" stddocPartNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > series< / span> < / span> < / span> is to provide different test methods aiming at assessing the efficiency of radioactive iodine traps in ventilation systems of nuclear facilities. The < span class=" stdpublisher" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > ISO< / span> < / span> < / span>  < span class=" stddocNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > 16659< / span> < / span> < / span> < span class=" stddocPartNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > series< / span> < / span> < / span> deals with iodine traps containing a solid sorbent — mainly activated and impregnated charcoal, the most common solid iodine sorbents used in the ventilation systems of nuclear facilities — as well as other sorbents for special conditions (e.g. high temperature zeolites).< / span>

< p class=" MsoBodyText" style=" margin-bottom: 12.0pt mso-layout-grid-align: none text-autospace: none " > < span lang=" EN-GB" style=" mso-bidi-font-size: 12.0pt " > The scope of this document is to provide general and common requirements for the different test methods for industrial nuclear facilities. The different methods will be described in other specific parts of < span class=" stdpublisher" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > ISO< / span> < / span> < / span>  < span class=" stddocNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > 16659< / span> < / span> < / span> < span class=" stddocPartNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > series< / span> < / span> < / span> . Nuclear medicine applications are excluded from the scope of < span class=" stdpublisher" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > ISO< / span> < / span> < / span>  < span class=" stddocNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > 16659< / span> < / span> < / span> < span class=" stddocPartNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > series< / span> < / span> < / span> .< / span>

< p class=" MsoBodyText" style=" margin-bottom: 12.0pt mso-layout-grid-align: none text-autospace: none " > < span lang=" EN-GB" style=" mso-bidi-font-size: 12.0pt " > In principle, < span class=" stdpublisher" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > ISO< / span> < / span> < / span>  < span class=" stddocNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > 16659< / span> < / span> < / span> < span class=" stddocPartNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > series< / span> < / span> < / span> is used mainly for filtering radioactive iodine, but other radioactive gases can also be trapped together with iodine. In such a case, some specificity may have to be adapted for these other radioactive gases in specific parts of < span class=" stdpublisher" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > ISO< / span> < / span> < / span>  < span class=" stddocNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > 16659< / span> < / span> < / span> < span class=" stddocPartNumber" > < span style=" color: black mso-color-alt: windowtext border: none " > < span style=" border: none " > series< / span> < / span> < / span> .< / span>

< p class=" MsoBodyText" style=" margin-bottom: 12.0pt mso-layout-grid-align: none text-autospace: none " > < span lang=" EN-GB" style=" mso-bidi-font-size: 12.0pt " > This document describes the main general requirements in order to check in situ the efficiency of the iodine traps, according to test conditions that are proposed to be as reproducible as possible.< / span>