LEADER 01997nam 2200385 450 001 996577921103316 005 20231214125832.0 010 $a1-5044-9014-2 024 70$a10.1109/IEEESTD.2022.9925181 035 $a(CKB)4100000012897298 035 $a(NjHacI)994100000012897298 035 $a(EXLCZ)994100000012897298 100 $a20231214d2022 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aN42.50-2022 - American National Standard Performance Specifications for Instrumentation Systems Designed for Measuring Radon Progeny in Air /$fIEEE 210 1$aNew York :$cIEEE,$d2022. 215 $a1 online resource (50 pages) 330 $aMinimum performance requirements and performance testing requirements are specified in this standard for instruments designed to measure radon progeny in air. Inasmuch as the health effects of exposure to radon progeny, and hence regulatory control, are quantified relative to the ultimate dose delivered by the complete decay of all the radon progeny in the monitored air, the principle measurand of interest is therefore the potential alpha energy concentration, expressed in units of either working level (WL) or joules m-3 given that primary measurements characterize activity. The needs of users, manufacturers, and regulators concerned with radon progeny measurements are addressed in this standard. 606 $aRadon$xMeasurement 606 $aAir sampling apparatus 606 $aRadioactivity$xInstruments 615 0$aRadon$xMeasurement. 615 0$aAir sampling apparatus. 615 0$aRadioactivity$xInstruments. 676 $a628.535 801 0$bNjHacI 801 1$bNjHacl 906 $aDOCUMENT 912 $a996577921103316 996 $aN42.50-2022 - American National Standard Performance Specifications for Instrumentation Systems Designed for Measuring Radon Progeny in Air$93884053 997 $aUNISA LEADER 01093nam0 22002651i 450 001 UON00100075 005 20231205102549.30 100 $a20020107d1959 |0itac50 ba 101 $ager 102 $aDE 105 $a|||| 1|||| 200 1 $aˆDie ‰Darstellung der Kinetik bei Lukrez$fGerhard Muller 210 $aBerlin$cAkademie Verlag$d1959 215 $a130 p.$d24 cm 311 $aVeröffentlichung$9UON00088573 410 0$1001UON00088573$12001 $aDeutsche Akademie der Wissenschaften zu Berlin. Institut für griechisch -römische Altertumskunde, Veroffentlichung$v7 Veröffentlichung 620 $aDE$dBerlin$3UONL003157 700 1$aMULLER$bGerhard$3UONV064916$027342 712 $aAkademie$3UONV246404$4650 801 $aIT$bSOL$c20240220$gRICA 899 $aSIBA - SISTEMA BIBLIOTECARIO DI ATENEO$2UONSI 912 $aUON00100075 950 $aSIBA - SISTEMA BIBLIOTECARIO DI ATENEO$dSI P 5 0399 $eSI MC 13409 5 996 $aDarstellung der Kinetik bei Lukrez$91310157 997 $aUNIOR