cesium process
cesium process, Total:160 items.
The international standard classification for "cesium process" includes: Industrial automation systems , Industrial process measurement and control .
The Chinese standard classification for "cesium process" includes: Industrial automation and control device in general .
National Metrological Verification Regulations of the People's Republic of China
- JJG 492-2009 Cesium Atomic Frequency Standards
- JJG 492-1987 Cesium Beam Frequency Standard
未注明发布机构
- PD ISO/TS 9516-2:2024 Iron ores — Determination of various elements by X-ray fluorescence spectrometry Part 2: Single element calibration procedure
- DIN EN 17266 E:2018-08 Foodstuffs - Determination elements and their chemical species - Determination of organomercury in seafood by elemental mercury analysis
- DIN 15349 E:2000-04 Introductory element - Main element - Complementary element
- DIN EN 61987-16 E:2016-04 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 16: Lists of properties (LOPs) for density measuring equipment for electronic data exchange
- DIN EN IEC 62832-2 E:2020-11 Industrial-process measurement, control and automation - Digital factory framework - Part 2: Model elements
Professional Standard - Geology
- DZ/T 0064.80-2021 Methods for analysis of groundwater quality- Part 80: Determination of forty elements (lithium, rubidium, cesium, etc)contents- Inductively coupled plasma mass spectrometry
Shandong Provincial Standard of the People's Republic of China
- DB37/T 4482-2021 Technical regulations for diagnosis and correction of deficiency and overapplication of wheat essential elements
- DB37/T 2557-2014 Copper preparation and nutrient elements combined application technical regulations
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 20818.1-2015 Industrial-process measurement and control―Data structures and elements in process equipment catalogues―Part 1:Measuring equipment with analogue and digital output
- GB/T 32235.2-2024 Industrial process measurement, control and automation—Digital factory framework—Part 2: Model elements
- GB/T 20818.1-2007 Industrial-process measurement and control— Data structures and elements in process equipment catalogues— Part 1: Measuring equipment with analogue and digital output
Hebei Provincial Standard of the People's Republic of China
- DB13/T 160-1993 Trace Element Fertilizer Application Technical Regulations
Group Standards of the People's Republic of China
- T/LNWTA 005-2021 Technical Regulation of the Rapid Screening of Elements in Water
- T/BASE 1.1-2022 The Dublin Core metadata element set Part1:Core element
Professional Standard - Public Safety Standards
- GA/T 541-2005 Administrative rules for data element of public security
Yunnan Provincial Standard of the People's Republic of China
- DB53/T 972-2020 Technical regulations for the application of trace element fertilizers in flue-cured tobacco
HU-MSZT
- MSZ MI 19379-1977 Cesium element detection in water
- MNOSZ 10050-1951 Product element large point detection element
- MNOSZ 10978-1953 active element
- MNOSZ 11289-1953 Thermite element
- MSZ 21452/3-1975 Definition of element content in air. Main element measurements
- MSZ 11290/2.lap-1966 Thermal element sensors and sensor thermal element deposits
- MSZ 1792-1960 Cut element
ES-UNE
- UNE-EN 17462:2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
- UNE-EN IEC 61987-92:2018 Industrial-Process Measurement and Control - Data Structures and Elements in Process Equipment Catalogues - Part 92: Lists of properties (LOP) of measuring equipment for electronic data exchange - Aspect LOPs (Endorsed by Asociación Española de Norm...
- UNE-EN 61987-16:2017 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 16: Lists of properties (LOPs) for density measuring equipment for electronic data exchange (Endorsed by Asociación Española de Normaliza...
- UNE-EN 61987-10:2009 Industrial-process measurement and control - Data structures and elements in process equipment catalogues -- Part 10: Lists of properties (LOPs) for industrial-process measurement and control for electronic data exchange - Fundamentals (Endorsed by AEN...
- UNE-EN IEC 61987-31:2023 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 31: List of Properties (LOPs) of infrastructure devices for electronic data exchange - Generic structures (Endorsed by Asociación Español...
- UNE-EN 61987-11:2017 Industrial-process measurement and control - Data structures and elements in -process equipment catalogues - Part 11: Lists of properties (LOPs) of measuring equipment for electronic data exchange - Generic structures (Endorsed by Asociación Española...
- UNE-EN 61987-24-3:2017 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 24-3: Lists of properties (LOPs) of flow modification accessories for electronic data exchange (Endorsed by Asociación Española de Normal...
- UNE-EN 61987-24-2:2017 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 24-2: List of properties (LOPs) of valve/actuator accessories for electronic data exchange (Endorsed by Asociación Española de Normalizac...
- UNE-EN 17266:2020 Foodstuffs - Determination elements and their chemical species - Determination of organomercury in seafood by elemental mercury analysis
- UNE-EN IEC 62832-2:2020 Industrial-process measurement, control and automation - Digital Factory framework - Part 2: Model elements (Endorsed by Asociación Española de Normalización in January of 2021.)
- UNE-EN ISO 22940:2022 Solid recovered fuels - Determination of elemental composition by X-ray fluorescence (ISO 22940:2021)
IT-UNI
- UNI EN 17462-2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
British Standards Institution (BSI)
- BS EN 17462:2021 Animal feeding stuffs. Methods of sampling and analysis. Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
- 19/30386026 DC BS EN 17462. Animal feeding stuffs. Methods of sampling and analysis. Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
- 24/30487166 DC BS EN IEC 61987-100. Industrial-process measurement and control. Data structures and elements
- BS EN IEC 62832-2:2020 Industrial-process measurement, control and automation. Digital factory framework. Model elements
- BS EN 61987-22:2016 Industrial-process measurement and control. Data structures and elements in process equipment catalogues. Lists of Properties (LOPs) of valve body assemblies for electronic data exchange
- BS EN 61987-23:2016 Industrial-process measurement and control. Data structures and elements in process equipment catalogues. Lists of Properties (LOPs) of actuators for electronic data exchange
- BS EN 61987-14:2016 Industrial-process measurement and control. Data structures and elements in process equipment catalogues. Lists of properties (LOP) for temperature measuring equipment for electronic data exchange
- BS EN 61987-15:2017 Industrial-process measurement and control. Data structures and elements in process equipment catalogues. Lists of properties (LOPs) for level measuring equipment for electronic data exchange
- BS EN 61987-12:2016 Industrial-process measurement and control. Data structures and elements in process equipment catalogues. Lists of properties (LOPs) for flow measuring equipment for electronic data exchange
- BS EN 61987-13:2016 Industrial-process measurement and control. Data structures and elements in process equipment catalogues. Lists of properties (LOP) for Pressure Measuring Equipment for electronic data exchange
Danish Standards Foundation
- DS/EN 17462:2021 Animal feeding stuffs: Methods of sampling and analysis – Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
- DS/EN IEC 62832-2:2020 Industrial-process measurement, control and automation – Digital factory framework – Part 2: Model elements
- DS/EN 61987-1:2007 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 1: Measuring equipment with analogue and digital output
- DS/ISO 3009:2005 Fire-resistance tests - Elements of building construction - Glazed elements
German Institute for Standardization
- DIN EN 17462:2021-06 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed; German version EN 17462:2021
- DIN EN 61987-11:2018-08 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 11: Lists of properties (LOPs) of measuring equipment for electronic data exchange - Generic structures (IEC 61987-11:2016); German version...
- DIN EN 61987-16:2018-07 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 16: Lists of properties (LOPs) for density measuring equipment for electronic data exchange (IEC 61987-16:2016); German version EN 61987-16...
- DIN EN 61987-14:2017-02 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 14: Lists of properties (LOP) for temperature measuring equipment for electronic data exchange (IEC 61987-14:2016); German version EN 61987...
- DIN EN 61987-10:2010-05 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 10: Lists of properties (LOPs) for industrial-process measurement and control for electronic data exchange - Fundamentals (IEC 61987-10:200...
- DIN EN 61987-13:2016-12 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 13: Lists of properties (LOP) for Pressure Measuring Equipment for electronic data exchange (IEC 61987-13:2016); German version EN 61987-13...
- DIN EN 61987-21:2016-07 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 21: List of Properties (LOP) of automated valves for electronic data exchange - Generic structures (IEC 61987-21:2015); German version EN 6...
- DIN EN IEC 61987-32:2022-08 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 32: Lists of properties (LOP) for I/O modules for electronic data exchange (IEC 65E/869/CD:2022); Text in German and English / Note: Date o...
- DIN EN 61987-10 Berichtigung 1:2012-04 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 10: Lists of properties (LOPs) for industrial-process measurement and control for electronic data exchange - Fundamentals (IEC 61987-10:200...
- DIN 15349:2003-11 Introductory element - Main element - Complementary element
- DIN EN 61987-24-1:2016-07 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 24-1: Lists of Properties (LOPs) of positioners and I/P converters for electronic data exchange (IEC 61987-24-1:2015); German version EN 61...
- DIN ISO 10782-1:1999-11 Definitions and attributes of data elements for control and monitoring of textile processes - Part 1: Spinning, spinning preparatory and related processes (ISO 10782-1:1998)
- DIN EN 17266:2020 Foodstuffs - Determination elements and their chemical species - Determination of organomercury in seafood by elemental mercury analysis
- DIN 58356-9:2005 Membrane filter elements - Part 9: Testing for endotoxins
- DIN EN IEC 62832-2:2022-05 Industrial-process measurement, control and automation - Digital factory framework - Part 2: Model elements (IEC 62832-2:2020); English version EN IEC 62832-2:2020
- DIN EN 61987-1:2007-10 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 1: Measuring equipment with analogue and digital output (IEC 61987-1:2006); German version EN 61987-1:2007
AT-ON
- OENORM EN 17462-2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
PL-PKN
- PN-EN 17462-2021-09 E Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
- PN-EN IEC 62832-2-2021-07 E Industrial-process measurement, control and automation -- Digital Factory framework -- Part 2: Model elements (IEC 62832-2:2020)
CH-SNV
- SN EN 17462-2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
European Committee for Standardization (CEN)
- EN 17462:2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
- DD ENV 12 005-1996 Information Technology - Procedures for European Registration of Cultural Elements
Association Francaise de Normalisation
- NF V18-750*NF EN 17462:2021 Animal feeding stuffs : methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
- NF EN 17462:2021 Aliments des animaux : méthodes d'échantillonnage et d'analyse - Détermination des radionucléides iode 131, césium 134 et césium 137 dans les matières premières et aliments composés pour animaux
- NF EN 61987-11:2017 Measurement and control of industrial processes - Data structures and elements in process equipment catalogs - Part 11: lists of properties (LOP) of measuring equipment for electronic data interchange - Structure...
- NF EN 61987-14:2016 Industrial process measurement and control - Data structures and elements in process equipment catalogs - Part 14: List of properties (LOP) of temperature measuring equipment for electronic exchange of data...
- NF EN 61987-10:2012 Measurement and control of industrial processes - Data structures and elements in process equipment catalogs - Part 10: Lists of properties (LOP) for electronic data exchange for measurement and control of ...
- NF EN IEC 61987-92:2018 Measurement and control in industrial processes - Data structures and elements in process equipment catalogs - Part 92: Lists of properties (LOP) of measuring equipment for electronic data exchange -...
- NF EN 61987-12:2016 Measurement and control in industrial processes - Data elements and structures in process equipment catalogs - Part 12: Lists of properties (LDPs) for flow measurement equipment for electronic exchange...
- NF EN 61987-21:2016 Measurement and control in industrial processes - Data structures and elements in process equipment catalogs - Part 21: List of properties (LOP) of automated valves for electronic data interchange - St...
- NF EN 61987-13:2016 Measurement and control in industrial processes - Data structures and elements in process equipment catalogs - Part 13: Lists of properties (LOP) for pressure measuring equipment for electronic exchange...
- NF EN 61987-24-1:2016 Measurement and control in industrial processes - Data structures and elements in process equipment catalogs - Part 24-1: Lists of properties (LOP) of positioners and I/P converters for electrical exchange...
- NF EN 61987-24-2:2017 Measurement and control in industrial processes - Data structures and elements in process equipment catalogs - Part 24-2: List of properties (LOP) of actuator/valve accessories for electronic exchange ...
- T12-019:1987 Pulps. Degree of delignification during bleeding.
- NF V03-266*NF EN 17266:2019 Foodstuffs - Determination elements and their chemical species - Determination of organomercury in seafood by elemental mercury analysis
- NF A 80-234:2021 Shielding - Accelerated aging procedures - Platform protection elements
- NF EN 17266:2019 Food products - Determination of elements and their chemical species - Determination of organic mercury in seafood products by elemental mercury analysis
- NF EN IEC 62832-2:2020 Measurement, control and automation in industrial processes - Digital factory framework - Part 2: model elements
- NF ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis")
- NF EN 24883:1993 Hard metals - Determination of metallic elements by X-ray fluorescence - Solution method
- NF ISO 22309:2012 Microbeam Analysis – Quantitative elemental analysis by energy selective spectrometry (EDS) of elements having an atomic number of 11 (Na) or greater
DIN
- DIN EN 17462:2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
SCC
- DANSK DS/EN 17462:2021 Animal feeding stuffs: Methods of sampling and analysis – Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
- NS-EN 17462:2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
- AWWA ACE63012 Evaluation of the Removal of Estrogens through the Coagulation Process
- DANSK DS/EN 17266:2019 Foodstuffs – Determination elements and their chemical species – Determination of organomercury in seafood by elemental mercury analysis
- DIN EN 17266 E:2018 Draft Document - Foodstuffs - Determination of elements and their chemical species - Determination of organomercury in seafood by elemental mercury analysis; German and English version prEN 17266:2018
- BS PD ISO/TS 9516-2:2024 Iron ores. Determination of various elements by X-ray fluorescence spectrometry-Single element calibration procedure
- DANSK DS/EN IEC 62832-2:2020 Industrial-process measurement, control and automation – Digital factory framework – Part 2: Model elements
- CEI EN IEC 62832-2:2021 Industrial-process measurement, control and automation – Digital factory framework Part 2: Model elements
- AWWA WQTC65934 Elimination of Microcystins and Associated Toxicity through Biofiltration Processes
- DIN EN 17462 E:2020 Draft Document - Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed; German and English version prEN 17462:2019
- DANSK DS/EN 61987-1:2007 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 1: Measuring equipment with analogue and digital output
- AWWA WQTC57148 Factors Contributing to DXAA Formation During Chloriamination
- BS 5397-2:1990 High-level data link control (HDLC) procedures-Specification for elements of procedures
- CEI EN 61987-1:2008 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 1: Measuring equipment with analogue and digital output
- BS DD ENV 12005:1996 Information technology. Procedures for European registration of cultural elements
- CAN/CGSB 7.1-1998 Elements d'ossature murale legers en acier
Lithuanian Standards Office
- LST EN 17462-2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
KR-KS
- KS X ISO/IEC 20943-1-2003(2023) Information Technology - Process of Matching Metadata Registry (MDR) Content - Part 1: Data Elements
- KS I ISO 14870-2018 Soil quality — Extraction of trace elements by buffered DTPA solution
- KS X ISO/IEC 15897-2003(2023) Information technology — Procedures for registration of cultural elements
Korean Agency for Technology and Standards (KATS)
- KS D 0062-2019 The method for measuring total and elemental fume generation rate on arc welding process
- KS B ISO 10782-1-2013 Definitions and attributes of data elements for control and monitoring of textile processes-Part 1:Spinning, spinning preparatory and related processes
- KS X ISO/IEC 15897-2023 Information technology — Procedures for registration of cultural elements
- KS I ISO 14870:2018 Soil quality — Extraction of trace elements by buffered DTPA solution
- KS X ISO/IEC 15897-2003(2018) Registration procedure for cultural elements
- KS Q ISO 11462-1-2015(2020) Guidelines for implementation of statistical process control(SPC)-Part 1:Elements of SPC
- KS Q ISO 11462-1:2009 Guidelines for implementation of statistical process control(SPC)-Part 1:Elements of SPC
- KS Q ISO 11462-1:2015 Guidelines for implementation of statistical process control(SPC)-Part 1:Elements of SPC
GSO
- BH GSO ISO 10782-1:2016 Definitions and attributes of data elements for control and monitoring of textile processes -- Part 1: Spinning, spinning preparatory and related processes
- GSO ISO 10782-1:2013 Definitions and attributes of data elements for control and monitoring of textile processes -- Part 1: Spinning, spinning preparatory and related processes
- OS GSO ISO 10782-1:2013 Definitions and attributes of data elements for control and monitoring of textile processes -- Part 1: Spinning, spinning preparatory and related processes
- BH GSO IEC 61987-10:2016 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 10: List of Properties (LOPs) for Industrial-Process Measurement and Control for Electronic Data Exchange - Fundamentals
- GSO ISO 11462-1:2015 Guidelines for implementation of statistical process control (SPC) -- Part 1: Elements of SPC
- OS GSO IEC 61987-10:2013 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 10: List of Properties (LOPs) for Industrial-Process Measurement and Control for Electronic Data Exchange - Fundamentals
- OS GSO IEC 61987-1:2015 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 1: Measuring equipment with analogue and digital output
- GSO IEC 61987-1:2015 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 1: Measuring equipment with analogue and digital output
American Society for Testing and Materials (ASTM)
- ASTM E827-95 Standard Practice for Indentifying Elements by the Peaks in Auger Electron Spectroscopy
- ASTM E827-02 Standard Practice for Indentifying Elements by the Peaks in Auger Electron Spectroscopy
- ASTM D3682-13 Standard Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes
- ASTM D3682-01(2006) Standard Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes
- ASTM D3682-01 Standard Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes
- ASTM D3682-00 Standard Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes
- ASTM D3682-01e1 Standard Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes
PT-IPQ
- NP 1609-1979 Potassium hydroxide used in industry. Measurement of calcium and magnesium by atomic absorption method
- NP 1353-1976 iron ore. Measurement of iron content by volumetric method
- NP 1608-1991 Sodium hydroxyde for industrial use Determination of calcium and magnesium contents. Flame atomic absorption method
- NP 2441-1988 Alcoholic beverages and spirits Determination of copper content. Colorimetric method. Routine method
Association of German Mechanical Engineers
- DVS-EFB 3440-3-2006 Functional elements - blind rivet elements
IEEE - The Institute of Electrical and Electronics Engineers@ Inc.
- IEEE N449.1-1978 Procedures for Periodic Inspection of Cobalt - 60 and Cesium - 137 Teletherapy Equipment
European Committee for Electrotechnical Standardization(CENELEC)
- EN IEC 62832-2:2020 Industrial-process measurement, control and automation - Digital factory framework - Part 2: Model elements
RU-GOST R
- GOST R 51309-1999 Drinking water. Determination of elements content by atomic spectrometry methods
- GOST R IEC 61987-1-2010 Industrial-process measurement and control. Data structures and elements in process equipment catalogues. Part 1. Measuring equipment with analogue and digital output
- GOST 31866-2012 Drinking water. Determination of elements content by stripping voltammetric method
American National Standards Institute (ANSI)
- ANSI N449.1-1978 Procedures for periodic inspection of cobalt-60 and cesium-137 teletherapy equipment
UY-UNIT
- UNIT 374-1974 Measurement of potassium by spectrophotometry
- UNIT 373-1974 Measurement of sodium by flame spectrophotometry
AENOR
- UNE 77315:2001 Soil quality. Extraction of trace elements by buffered DTPA solution.
International Organization for Standardization (ISO)
- ISO/IEC 15897:1999 Information technology - Procedures for registration of cultural elements
- ISO/TS 9516-2:2024 Iron ores-Determination of various elements by X-ray fluorescence spectrometry-Part 2: Single element calibration procedure
- ISO 11462-1:2001 Guidelines for implementation of statistical process control (SPC) - Part 1: Elements of SPC
- ISO/TS 16996:2015 Solid biofuels — Determination of elemental composition by X-ray fluorescence
Standard Association of Australia (SAA)
- AS ISO 11462.1:2004 Guidelines for implementation of statistical process control (SPC) - Elements of SPC
U.S. Military Regulations and Norms
- ARMY MIL-H-12082 B-1958 HUMIDITY ELEMENT, RESISTANCE (HUMIDITY ELEMENT ML-418( )/AMT-4)
International Electrotechnical Commission (IEC)
- IEC 61987-10:2009/COR1:2012 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 10: Lists of properties (LOPs) for industrial-process measurement and control for electronic data exchange - Fundamentals
- IEC 61987-23:2015 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 23: Lists of Properties (LOPs) of actuators for electronic data exchange
ES-AENOR
- UNE 24 031 Element definition of natural stone for manufacturing engineering
RO-ASRO
- STAS 11469/2-1982 Data communication HIGH LEVEL DATA LINK CONTROL PROCEDURES Elements of procedure
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