Statements / Recommendations

in pdf format:
Should you not have the Acrobat Reader installed on your PC, a free download is available here:



21.02.2013 STATEMENT - "Pressure and leak tests of components of the reactor coolant pressure boundary and outer systems, especially after repairs" (in German)
17.01.2013 STATEMENT - Detection of flaws in the reactor pressure vessel of Unit 3 of Belgium's Doel nuclear power plant (Doel-3) (in German)
13.12.2012 RECOMMENDATION - "Grid stability": Impact of stability problems in the German power grid on electrical and I&C installations of nuclear power plants and securing the required electrical power supply for these plants from the grid (in German)
26./27.09.2012 RECOMMENDATION - Recommendations of the RSK on the robustness of the German nuclear power plants
26./27.09.2012 STATEMENT - Redesign of I&C modules and components in nuclear power plants (in German)
26./27.09.2012 STATEMENT - Operating documents: “Requirements and conditions of safe operation" (in German)
03.05.2012 STATEMENT - Plant-specific safety review (RSK-SÜ) of German research reactors in the light of the events in Fukushima-I (Japan) (in German)
03.05.2012 STATEMENT - Leakages from steam generator (SG) tubes to be postulated: multiple tube rupture/leak opening of wall thickness-reduced SG tubes (in German) [Published in the Federal Gazette (AT) on 26 July 2012 (B3)]
03.05.2012 STATEMENT - Application of the operating manual during operation of German nuclear power plants (in German) [Published in the Federal Gazette (AT) on 30 July 2012 (B1)]
05.04.2012 STATEMENT - Loss of the primary ultimate heat sink
05.04.2012 STATEMENT - Recommendations on the maximum permissible critical boron concentration to ensure subcriticality after operation in "reflux condenser mode“ during a small-break loss-of-coolant accident
05.04.2012 STATEMENT - Stress analysis and testability of the weld at the joint between the cylinder and lower bottom head in reactor pressure vessels (RPVs) of nuclear power plants with boiling water reactors of the BWR 69 type nuclear power plants Krümmel (KKK), Brunsbüttel (KKB), Philippsburg Unit 1 (KKP-1) and Isar Unit 1 (KKI-1)
29.02./01.03.2012 STATEMENT on the nuclear non-mandatory guidance instruments, Revision E (in German)
12.01.2012 Report of the RSK- Committee on ELECTRIC INSTALLATIONS (EE)
- "Testing and monitoring programme for oil-paper insulated transformers and dry transformers in German nuclear power plants"
17.11.2011 RECOMMENDATION - RSK’s understanding of the term robustness in the context of the EU stress test
20.09.2011 Presentation of the consultation results of the RSK working group "USE OF COMPUTER-BASED I&C" (ERL) – “Computer-based safety I&C for use in the highest safety category in German nuclear power plants“ (in German)
07.07.2011 RECOMMENDATION - Regulations on plant conditions after occurrence of an incident (in German)
11.- 14.05.2011 Summarising assessment and recommendations of the RSK STATEMENT "Plant-specific safety review (RSK-SÜ) of German nuclear power plants in the light of the events in Fukushima-1 (Japan)" from the 437th RSK meeting from 11 to 14 May 2011
30.03.2011 "Preface" and the "Catalogue of requirements for plant-specific reviews of German nuclear power plants in the light of the events in Fukushima-I (Japan)"
16.12.2010 STATEMENT - Evaluation of the three-pillar concept for testing of safety-relevant valves (in German)
03.11.2010 RECOMMENDATION - Basic recommendations for the planning of emergency control measures by the licensees of nuclear power plants (in German)
15.07.2010 STATEMENT - Damage to steam generator (SG) tubes caused by stress corrosion cracking – cause and detection (in German)
17.06.2010 STATEMENT - Safety requirements at the interface between systems engineering and civil engineering in nuclear power plants (in German)
20.05.2010 STATEMENT - Requirements for dowel connections in nuclear power plants (in German)
03.09.2009 STATEMENT - Threat to the containments of PWRs due to hydrogen reactions caused by the ignition effect of passive autocatalytic recombiners(in German)
18.06.2009 RECOMMENDATION - Requirements on the determiniation of the minimum shift staffing at nuclear power plants to ensure safe operational management (in German)
14./15.10.2008 STATEMENT - Proceeding for the modification of testing instructions at short notice for in-service inspections (in German)
14./15.10.2008 RECOMMENDATION - Guideline for the performance of integrated event analyses (in German)
24.07.2008 STATEMENT - Strength theories within the scope of application of the KTA standards in connection with the re-evaluation of components and systems
Assessment of safety-related aspects regarding the issue of optional applicability of the strength theories according to Mises and Tresca in the KTA standards
here: on the issue of the optional applicability of the strength hypotheses according to von Mises (maximum distortion energy theory) and Tresca (maximum shear stress theory) in the KTA standards for pipes
(in German)
03.07.2008 Joint RSK and SSK STATEMENT on the GRS report “Safety requirements on the disposal of high-level radioactive waste in deep geological formations” (in German)
09.05.2008 RECOMMENDATION - Requirements on the operating reports of the operators for information of the RSK

Annex 1: Forms
Annex 2: Examples of contents of the operating reports (texts, graphics)
(in German)
13.03.2008 STATEMENT - Loss-of-coolant accidents involving the release of insulation material and other substances in pressurised water reactors – removal of deposits on sump strainers

Note to this statement (in German)
13.02.2008 STATEMENT - Influence of hydrogen on the toughness behaviour of irradiated RPV steels - Advisory request on the final report of project 1501267 of the Leibniz Institutes IFW and FZR Dresden of December 2004 (in German)
11./12.12.2007 STATEMENT - Licensing procedure for the decommissioning and dismantling of the Obrigheim nuclear power plant (in German)
08.11.2007 STATEMENT - Conclusions drawn from damages at the cladding tube of a shut-off heater rod bundle at the Biblis nuclear power plant, Unit B, detected on 03.10.2005 (in German)
12.04.2007 STATEMENT - Application pursuant to Section 6 of the Atomic Energy Act for the construction of the Obrigheim interim storage facility (in German)
13.09.2006 STATEMENT - Synthesis report issued by the Federal Office for Radiation Protection "Conceptual and safety-related issues regarding the disposal of radioactive wastes – A comparison of different host rocks" (in German)
10.08.2006 RECOMMENDATION - Impact of advanced core loading on the reactivity behaviour of the reactor core and its reactivity control elements (in German)
10.08.2006 STATEMENT - Description of the state of knowledge about the influence of gamma radiation on toughness reduction of ferritic materials of reactor pressure vessels during operation (in German)
09.03.2006 STATEMENT - Radiation damage in rock salt (in German)
09.03.2006 STATEMENT on defective medium-voltage cables with safety significance at German nuclear power plants on the occasion of Reportable Event ME E 13.1/04 - Brunsbüttel nuclear power plant (KKB) "Failure of the auxiliary power supply with reactor scram" of 23.08.2004 (in German)
15./16.12.2005 STATEMENT - Proposal for requirements on decommissioning in the nuclear rules and regulations (in German)
15./16.12.2005 STATEMENT - Control of loss-of-coolants accidents at PWRs under consideration of dead volumes in the containment - safety management aspects
15./16.12.2005 STATEMENT - Current approach for non-destructive tests performed within the framework of recurrent tests on ferritic-austenitic dissimilar welds (statement on main topic 1 of BMU project SR 2360) (in German)
10.11.2005 RECOMMENDATION - Control of loss-of-coolants accidents at PWRs under consideration of dead volumes in the containment - scientific/technical aspects
06.10.2005 STATEMENT - Classification of "VO events" according to the safety levels of the defence-in-depth concept and concept for the redefinition of precautions (Vorsorgemaßnahmen - VM) (in German)
08.09.2005 RECOMMENDATION - Defence-in-depth concept
08.09.2005 STATEMENT - Definition of component failure postulates
08.09.2005 STATEMENT - Specification by the company Areva/Cogema regarding high-pressure-compacted radioactive waste (CSD-C) from the reprocessing of German LWR fuel elements (in German)
21.07.2005 RECOMMENDATION - Requirements for LOCA safety analyses
07.07.2005 STATEMENT on switch-off of the main coolant pumps during ATWS events at nuclear power plants with pressurised water reactor (in German)
07.07.2005 STATEMENT - Eddy current indications at control elements - Reportable events 02/2003 at the Brokdorf nuclear power plant, 02/2004 at the Neckarwestheim nuclear power plant, Unit 2, and 08/2004 at the Emsland nuclear power plant (in German)
02.06.2005 STATEMENT - Licensing procedure for decommissioning and dismantling of the Stade NPP (in German)
28.04.2005

STATEMENT - BMU project SR 2392 "Use of thermoelements for measuring the temperature of pipe walls in nuclear power plants within the framework of the fatigue analysis" and consideration of the medium influence in fatigue analyses according to the KTA safety standards (in German)
24.02.2005 STATEMENT on safety-related aspects of conceptual questions on the final disposal of irradiated fuel elements using canisters emplaced in bore holes (in German)
27.01.2005 STATEMENT - Gases in a repository (in German)
27.01.2005 STATEMENT - Safety aspects of the use of high burn-up fuel elements under reactivity accident conditions
27.01.2005 STATEMENT - Project SR 2318 of the BMU "Assessment of the informational value of ultra-sonic and eddy-current examinations of austenitic RPV cladding (in German)
16.12.2004

STATEMENT on the expansion of the Gronau uranium enrichment facility (in German)
16.12.2004 STATEMENT - Reportable event "Fuel assembly drop during loading of a transport cask" at Biblis NPP, Unit 1, on 06.08.2001 (in German)
22.07.2004 RECOMMENDATION - Management of ageing processes at nuclear power plants
22.07.2004 STATEMENT - Requirements for the demonstration of effective emergency core cooling during loss-of-coolant accidents involving the release of insulation material and other substances
27.05.2004 STATEMENT - KTA Safety Standard 2201.1: "Design of Nuclear Power Plants against Seismic Events; Part 1: Principles"; as amended in 6/90 - Recommendations for the review of the safety standard
04.03.2004 STATEMENT - Incident at the Davis Besse nuclear power plant (USA) rated at INES Level 3 of 6 March 2002, "Boric Acid Corrosion on the Reactor Vessel Head" and lessons learned for German plants
11.12.2003 STATEMENT - Improper fuel handling at the Gemeinschaftskernkraftwerk Neckar (GKN) nuclear power plant during repositioning of a fuel element (Unit 1, Reportable Event 03/2002) and a primary neutron source (Unit II, Reportable Event 02/2002) (in German)
13.11.2003 STATEMENT - Reportable event at the Kernkraftwerk Unterweser (KKU) nuclear power plant: Unavailability of one of four main steam safety and relief valves when demanded on 06.06.1998 (in German)
16.10.2003 RECOMMENDATION - Criteria for alerting civil protection authorities through operators of nuclear facilities, September/October 2003 (in German)
16.10.2003 STATEMENT - Control elements damages at BWR plants (in German)
18.09.2003 STATEMENT - Increase of the thermal reactor power of the Grafenrheinfeld nuclear power plant (KKG)
10.07.2003 RECOMMENDATION - General requirements on the measures for the prevention of impermissible radiolysis gas reactions
10.07.2003 STATEMENT - Kernkraftwerk Unterweser (KKU) nuclear power plant - Reportable event: Indications at nozzles connecting the feedwater systems to the steam generators (in German)
10.04.2003 STATEMENT - Implementation of the RSK recommendation "Safety guidelines for dry interim storage of irradiated fuel assemblies in storage casks" in the BfS draft licence for the on-site interim storage facility in Gemmrigheim of the Gemeinschaftskernkraftwerk Neckar GmbH (ZL-GKN) (in German)
10.04.2003 STATEMENT - Gemeinschaftskernkraftwerk Neckarwestheim nuclear power plant, Unit 2 (GKN-2) - Rupture of a thermosleeve in RHR line JNA 31 (in German)
05./06.12.2002 Joint RSK and SSK STATEMENT concerning BMU questions regarding the update of safety criteria for repositories (in German)
05.12.2002 RECOMMENDATION - Safety requirements on the interim storage of low and intermediate level waste in the longer term
07.11.2002 STATEMENT - Implementation of the RSK recommendation "Safety guidelines for dry interim storage of irradiated fuel assemblies in storage casks" in the BfS draft licence for the Grafenrheinfeld on-site interim storage facility (ZL-KKG) (in German)
10.10.2002 STATEMENT - Quality management with regard to safety requirements for the fabrication and procurement of fuel assemblies (in German)
05.09.2002 STATEMENT - Implementation of the RSK recommendation "Safety guidelines for dry interim storage of irradiated fuel assemblies in storage casks" in the BfS draft licence for the Lingen on-site interim storage facility (in German)
11.07.2002 STATEMENT - Safety of German interim storage facilities for spent fuel elements in storage casks in the event of a deliberate crash of large airliners (in German)
13.06.2002 RECOMMENDATION - Electromagnetic compatibility - Demonstrating the electromagnetic compatibility of I&C systems in nuclear facilities, 13.06.2002 (in German)
13.06.2002 STATEMENT - RSK memorandum on the assurance of an appropriate safety culture (in German)
16.05.2002 STATEMENT - Conclusions drawn from a plant-specific probabilistic safety analysis of low-power and shutdown operation for light water reactors (in German)
11.04.2002

STATEMENT - Adaptation and Optimisation of Non-destructive Testing Methods on Safety Relevant Systems and Components
07.03.2002 STATEMENT - Design earthquake for the Biblis site (in German)
07.03.2002 STATEMENT on current issues of final storage in salt rock formations (in German)
10.01.2002 Thesis Paper by the RSK Committee on FUEL SUPPLY AND WASTE MANAGEMENT (VE) concerning safety-related requirements for the longer-term interim storage of low- and medium-active waste (in German)
10.01.2002 Principles for the proceeding regarding the control of ageing processes in nuclear power plants - replaced by recommendation "Management of ageing processes at nuclear power plants" of July 22, 2004
13.12.2001 STATEMENT - Failure-induced secondary-side load reduction and failed rod injection in the shared-ownership nuclear power plant Neckar, unit 1 (GKN-1) on 10-05-2000 (in German)
11.10.2001 STATEMENT on KTA 1404, draft rule (revision) "Documentation during the construction and operation of nuclear power plants" (in German)
11.10.2001 STATEMENT - Safety of German nuclear power plants to withstand the deliberate crash of a large, fully fuelled aircraft (in German)
13.09.2001 STATEMENT - New München II (FRM II) research reactor - 3rd partial licence, 13.09.2001 (in German)
13.09.2001 STATEMENT - Major topics of future R&D concerning the final storage of radioactive waste (in German)
03.05.2001 STATEMENT - ATWS events - see also continuative Statement of 07.07.2005
05.04.2001 RECOMMENDATION - Safety guidelines for dry interim storage of irradiated fuel assemblies in storage casks
01.02.2001 STATEMENT - Use of free spaces in the cooling pond of the Stade nuclear power plant
09.11.2000 STATEMENT - Biblis nuclear power plant, unit A (KWB-A), cracks in a weld seam of a pipe (TH system) connecting to the reactor coolant line (in German)
09.11.2000 Supplementary STATEMENT - Biblis nuclear power plant, unit A (KWB-A), cracks in weld seam YA01 65W (in German)
07.09.2000 STATEMENT - Consequences of the Criticality Incident at the JCO Uranium Processing Plant in Tokaimura, Japan for German Plants (in German)
06.04.2000 STATEMENT - Perpetuated application of DIN/ISO 7503.1 for the demonstration of compliance with contamination limits under traffic law concerning surface contamination of shipping packages (in German)
06.04.2000 STATEMENT - Reportable event N07/98 and event of 23-09-1999 at the Krümmel nuclear power plant (KKK) "Loose lock nuts on control rod drive enclosure tubes" (in German)
10.1981 RSK guidelines for pressurised water reactors, original version (3rd edition of 14.10.1981) with amendments of 15.11.1996, (in German)
09.1979 List of systems and components to which the general specification on the basic safety of pressurised components has to be applied (September 79) (in German)
09.1979 General specification on the "Basic safety of pressurised components" (September 79) (in German)

(C) 2013 - All rights reserved

Print this page