Metal flow detection equipment
Metal flow detection equipment, Total:186 items.
The international standard classification for "Metal flow detection equipment" includes: Other mining equipment , Documents in administration, commerce and industry , Control equipment for electric power systems , Substations. Surge arresters , Non-destructive testing , Electric traction equipment , Non-destructive testing of metals , Welded joints , Bushings .
The Chinese standard classification for "Metal flow detection equipment" includes: Mining machinery equipment in general , Technical management , High voltage switchgear , Basic standards and general methods , X ray, magnetic powder, fluorescent light and other defectoscope , Traction substation , Metal nondestructive testing method , Welding and cutting , Insulator .
Professional Standard-Safe Production
- AQ/T 2073-2019 Electrical safety testing-inspecting specification of in-service high-voltage switchgear for metal and nonmetal mines
- AQ/T 2075-2019 Safety testing-inspecting directory of in-service equipment and facilities for metal and nonmetal mines
- AQ/T 2074-2019 General requirements of safety testing-inspecting report of in-service equipment and facilities for metal and nonmetal mines
Hebei Provincial Standard of the People's Republic of China
- DB13/T 1394.1-2011 Comprehensive Judgment Rules for Safety Testing and Inspection of Equipment in Use in Metal and Nonmetal Mine Part 1: Auxiliary Winch for Mining
- DB13/T 1394.5-2011 Comprehensive Judgment Rules for Safety Testing and Inspection of Equipment in Use in Metal and Nonmetal Mine Part 5: Mining Wheel Loaders
- DB13/T 1394.3-2011 Comprehensive Judgment Rules for Safety Inspection and Inspection of Equipment in Use in Metal and Nonmetal Mine Part 3: Mining Narrow Gauge Electric Locomotives
- DB13/T 1394.4-2011 Comprehensive Judgment Rules for Safety Testing and Inspection of Equipment in Use in Metal and Nonmetal Mine Part 4: Belt Conveyor for Mine
- DB13/T 2520-2017 Safety inspection and inspection catalog of equipment and facilities with high risk in use in metal and nonmetal mines
- DB13/T 2807-2018 Specification for inspection and inspection of special equipment for metal and nonmetal underground mines
- DB13/T 1394.6-2011 Comprehensive Judgment Rules for Safety Inspection and Inspection of Equipment in Use in Metal and Nonmetal Mine Part 6: Mine Blast Hole Drilling Rig
- DB13/T 1394.2-2011 Comprehensive Judgment Rules for Safety Testing and Inspection of Equipment in Use in Metal and Nonmetal Mine Part 2: Mine Air Compressors
Taiwan Provincial Standard of the People's Republic of China
- CNS 11400-1985 Method of Eddy Current Test for Metal Bars Rods and Wires
Shandong Provincial Standard of the People's Republic of China
- DB37/T 4599-2023 Technical specification for AC electromagnetic field testing of metal structures
- DB37/T 2387-2013 Safety inspection and inspection catalog of equipment and facilities with high risk in use in metal and nonmetal mines
Professional Standard - Electricity
- DL/T 1946-2018 Guide of X-ray radiography field examination for gas-insulated metal-enclosed switchgear
- DL/T 404-2018 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
- DL/T 1801-2018 Phased array ultrasonic testing of welded joints of hydropower metal structures and equipment
- DL/T 370-2010 Metal magnetic memory testing of welded joint on pressure equipment
- DL/T 311-2010 Guide for AC 1100kV GIS/HGIS maintenance
- DL/T 2275-2021 Guide for condition based maintenance strategy of 12(7.2)kV-40.5 kValternating-current metal-enclosed switchgear
- DL/T 404-2007 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6kV and up to and including 40.5kV
- DL/T 1432.4-2017 Testing specification for on-line monitoring device for transformation equipment. Part 4: On-line partial discharge monitoring device for gas-insulated metal-enclosed switchgear based on ultra high frequency
- DL/T 1432.3-2016 Testing Specification for On-line Monitoring Device of Transformation Equipment - Part 3: On-line Insulation Monitoring Device of Capacitive Equipment and Metal Oxide Arreste
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 23909.3-2009 Non-destructive testing—Radioscopic testing—Part 3:General principles of radioscopic testing of metallic materials by X-and gamma rays
- GB/T 14480.3-2008 Non-destructive testing - Equipment for eddy current examination - Part 3: System characteristics and verification
- GB 3906-1991 A.C.metal-enclosed switchgear for rated voltages of 3~35kV
- GB/T 23910-2009 Non-destructive testing—Metal intensifying screens for radiographic testing
- GB/T 26642-2011 Non-destructive testing - Test method for computed radiography of metallic materials
- GB 3906-2006 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
- GB/T 19943-2005 Non-destructive test - Radiographic examination of metallic materials by X-and gamma-rays - Basic rules
- GB/T 28428-2012 27.5 kV and 2×27.5 kV AC metal-enclosed switchgear and controlgear for electrification railway
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
- GB/T 3906-2006 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
- GB/T 35393-2017 Non-destructive testing—Practice for electromagnetic(eddy-current) sorting of nonferrous metals
- GB/T 35385-2017 Non-destructive testing—Practice for electromagnetic (eddy-current) sorting of ferrous metals
Professional Standard - Machinery
- JB/T 56236-1999 3.6~40.5kV AC metal-enclosed switchgear product quality inspection guidelines
- JB/T 5075-2004 Non-destructive testing -- Metal intensifying screens for radiographic testing
- JB/T 10863-2018 Solid waste treatment equipment一Eddy current separator
- JB/T 4730.2-2005 Nondestructive testing of pressure equipments?Part 2:Radiographic testing
- JB/T 4730.6-2005 Nondestructive Testing for Pressure Equipment - Part 6: Eddy current testing
国家市场监督管理总局、中国国家标准化管理委员会
- GB/T 3906-2020 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
- GB/T 41120-2021 Non-destructive testing―Test method for non-ferromagnetic metallic component pulsed eddy current testing
- GB/T 39789-2021 Non-destructive testing of welds—Eddy current-video integrated testing method of metal composites weld
Group Standards of the People's Republic of China
- T/CERS 0002-2018 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6kV and up to and including 40.5kV (Environment-friendly gas)
- T/ZZB 2848-2022 12kV~40.5kV environment-friendly gas insulated AC metal-enclosed switchgear and control equipment
- T/CES 021-2018 Technical specifications of mechanical vibration detection for gas-insulated metal-enclosure switchgear
- T/CIPR 046-2022 Wireless dispatch command detects the device
- T/NLIA 005-2021 PCB online defect detection equipment
- T/ZJASE 028-2024 Radiographic testing of butt joints of thick-walled aluminum and aluminum alloy pressure equipment
- T/JSQA 095-2021 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
- T/CES 055-2021 Guide of current measurement technology for opening and closing coils of high voltage switchgear
- T/CSTM 00821-2022 Metallic reference blocks of ultrasonic testing and eddy current testing for civil aircraft
Professional Standard - Energy
- NB/T 47013.6-2015 Nondestructive Testing of Pressure Equipments Part 6:Eddy Current Testing
- NB/T 47013.2-2015 Nondestructive Testing of Pressure Equipment Part 2: Radiographic Testing
- NB/T 47013.2-2015(R1) Nondestructive testing of pressure equipments.Part 2: Radiographic testing
- NB/T 47013.6-2015 Nondestructive Testing of Pressure Equipment Part 6: Eddy Current Testing
- NB/T 47013.2-2015 Nondestructive testing of pressure equipments Part 2:Radiographic testing
- NB/T 47013.13-2015 Nondestructive Testing of Pressure Equipment Part 13: Pulsed Eddy Current Testing
- NB/T 47013.13-2015 Nondestructive testing of pressure equipments Part 13: Pulsed eddy current testing
- NB/T 42044-2014 Alternating-current metal-enclosed intelligent switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
国家能源局
- NB/T 10809-2021 Socket-outlets for public places—Technical specification
- NB/T 42064-2015 Guide to the interpretation of AC metal-enclosed switchgear and controlgear for rated voltages above 3.6kV and up to and including 40.5kV
Professional Standard - Commodity Inspection
- SN/T 2876.2-2013 Technical requirements for the inspection of complete set of equipment for import and export in metallurgy industry - Part 2: Metal smelting equipment
- SN/T 2876.1-2011 Technical Requirements for the Inspection of Metallurgy Industry’s Complete Set of Equipment for Import and Export - Part 1: Rollingmill Equipment
- SN/T 2876.3-2014 Technical requirements for the inspection of complete set of equipment for import and export in metallurgy industry - Part 3: Metal foundry equipment
未注明发布机构
- ANSI/TIA-1194-2011(2017) Telecommunications User Premises Equipment Surge Resistibility of Smart Grid Equipment Connected to either DC or 120/240 V Single Phase AC and Metallic Communication Lines
工业和信息化部
- JB/T 13471-2018 Non-destructive testing-Test method for electromagnetic monitoring of metal wear debris in oil
Henan Provincial Standard of the People's Republic of China
- DB41/ 770-2012 Specifications for daily inspection and periodic inspection of hoisting systems in metal and nonmetal mines
International Organization for Standardization (ISO)
- ISO/FDIS 24367:2023 Non-destructive testing — Acoustic emission testing — Metallic pressure equipment
- ISO/DIS 24367 Non-destructive testing — Acoustic emission testing — Metallic pressure equipment
- ISO 24367:2023 Non-destructive testing — Acoustic emission testing — Metallic pressure equipment
- ISO 20669:2017 Non-destructive testing - Pulsed eddy current testing of ferromagnetic metallic components
- ISO 15548-3:2008 Non-destructive testing - Equipment for eddy current examination - Part 3: System characteristics and verification
- ISO 20339:2017 Non-destructive testing - Equipment for eddy current examination - Array probe characteristics and verification
- ISO/DIS 15548-3:2006 Non-destructive testing-Equipment for eddy current examination-Part 3:System characteristics and verification
HU-MSZT
- MSZ 16050/17-1971 Comprehensive detection of gallium content in metal equipment
- MSZ 16050/13.lap-1969 Comprehensive detection of manganese content in metal equipment
- MSZ 16050/8.lap-1969 Definition of comprehensive inspection content of metal equipment
- MSZ 16050/1.lap-1969 General Regulations on Comprehensive Inspection of Metal Equipment
- MSZ 16050/12.lap-1969 Comprehensive inspection of metal equipment. Aluminum content definition
- MSZ 16050/6.lap-1969 Comprehensive inspection of metal equipment. Potassium content definition
- MSZ 16050/7.lap-1969 Comprehensive inspection of metal equipment. Silver and gold content definition
- MSZ 275/3-1980 High current free wire equipment. Testing standards
- MSZ 16050/15.lap-1969 Definition of silver content for comprehensive detection of metal equipment
- MSZ 16050/9.lap-1969 Comprehensive inspection of metal equipment. Potassium content definition
- MSZ 275/1-1979 High current free wire equipment. concept testing
- MSZ 5999/2.lap-1963 Steel and metal technology testing. Test line
- MSZ 15436-1982 Metal powder flow ability testing
- MSZ 16050/11.lap-1969 Definition of pig iron content for comprehensive detection of metal equipment
- MSZ 16050/10.lap-1969 Comprehensive inspection of metal equipment. Mineral silicon content definition
- MSZ 16050/16.lap-1969 Comprehensive inspection of metal equipment. Antimony content in the definition of
- MSZ 18741-1980 Movable metal equipment and detection on the rear of bicycles
- MSZ 10074-1970 Metal cutting tools. Flow performance testing
- MSZ 16050/4.lap-1969 Definition of element content greater than 2% in comprehensive testing of metal equipment
- MSZ 16050/14.lap-1969 Definition of potassium and nickel content for comprehensive testing of metal equipment
- MNOSZ 16800-1953 Construction Industrial Machinery Metal Detection
- MSZ 16050/3.lap-1969 Definition of element content less than 2% in comprehensive testing of metal equipment
- MSZ 16050/5.lap-1969 Definition of chemical analysis for comprehensive testing of metal equipment, copper content
- MSZ 15963-1967 Radiographic testing of metal materials. Determination of painting quality
- MSZ 3612/1.lap-1961 Preparation for testing metal content in canned food
- MSZ 18096/6-1979 Anti-corrosion testing of underground metal equipment. Electrical separation of pipes and protective tubes
- MSZ 17132-1987 DC detection and measurement equipment. Technical products and testing
- MSZ 4822/5-1973 Power stability testing of high-voltage equipment. DC voltage detection
- MSZ 5999/1-1972 Metal and casting technology testing. Metal wire quality inspection
- MSZ 8880/7-1977 Power equipment testing tools and testing methods. Current stability check
- MSZ 11456/2-1971 TV protection equipment. Antenna detection
- MSZ 8607-1973 Mobile equipment, gas and water heating equipment products and testing
- MSZ 4929-1976 Metal curl detection
- MSZ 18092/2-1971 Production of aluminum without oxide film and color anodizing and testing of its alloy metal equipment
- MSZ 18097/2-1984 Detection of metals, alloys, metallic and non-metallic organic coatings. Anticorrosive testing in salt spray (ASS method)
- MSZ 18097/1-1984 Detection of metals, alloys, metallic and non-metallic organic coatings. Anticorrosive testing in salt spray (NSS method)
- MSZ 18097/3-1984 Detection of metals, alloys, metallic and non-metallic organic coatings Anti-corrosion testing in acid mist (CASS method)
- MSZ 16401/3-1971 Aluminum and aluminum alloys. Measuring equipment for grooving metal parts
RO-ASRO
- STAS 6951-1976 Tests of metals TENSILE TESTING OF WIRE
- STAS 3208-1972 Hoisting equipmcnt WIRE ROPE SHEAVES Diameters and groove profilcs
- STAS 7123-1965 Monocoque cast iron cylindrical rolling equipment for profiles, wires and strips
- STAS 10385-1975 Testing of metals DRIFT EXPANDING TEST ON LIGHT METAL AND LIGHT METAL ALLOY TUBES
- STAS 6718-1985 Tests of metals TENSILE TESTING OF TUBES
CN-QIYE
- Q/GDW 612-2011 12 (7.2) kV~40.5kV AC metal-enclosed switchgear condition maintenance guidelines
Association Francaise de Normalisation
- NF EN 17391:2022 Essais non destructifs - Contrôle par émission acoustique - Surveillance en service par émission acoustique des équipements et structures métalliques sous pression - Exigences générales
- NF ISO 20669:2017 Non-destructive testing - Pulsed eddy current testing of ferromagnetic metallic components
- NF A09-172*NF ISO 20669:2017 Non-destructive testing - Pulsed eddy current testing of ferromagnetic metallic components
- NF EN ISO 15548-1:2014 Non-destructive testing - Equipment for eddy current examination - Part 1: characteristics of the device and checks
- NF A09-162*NF EN ISO 20339:2017 Non-destructive testing - Equipment for eddy current examination - Array probe characteristics and verification
GSO
- GSO ISO 20669:2021 Non-destructive testing — Pulsed eddy current testing of ferromagnetic metallic components
- BH GSO ISO 20669:2022 Non-destructive testing — Pulsed eddy current testing of ferromagnetic metallic components
- NB/T 47013.18-2024 Nondestructive testing of pressure equipment Part 18: Array eddy current testing
- NB/T 42064-2024 Test guide for 3.6 kV to 40.5 kV AC metal-enclosed switchgear and controlgear
SCC
- BS 3889-2B:1966 Methods for non-destructive testing of pipes and tubes-Eddy current testing of non-ferrous tubes
- AS 2084:1977 Methods for eddy current testing of metal bar and tubular products
- DIN EN 14584 E:2011 Draft Document - Non-destructive testing - Acoustic emission - Examination of metallic pressure equipment during proof testing; German version prEN 14584:2011
- 11/30248651 DC BS EN 14584. Non-destructive testing. Acoustic emission. Examination of metallic pressure equipment during proof testing
- DANSK DS/EN 13068-3:2001 Non-destructive testing - Radioscopic testing - Part 3: General principles of radioscopic testing of metallic materials by X- and gamma rays
- AENOR UNE-EN 13068-3:2002 Non-destructive testing - Radioscopic testing - Part 3: General principles of radioscopic testing of metallic materials by X- and gamma rays
- AS 4544.1:1999 Non-destructive testing - Eddy current testing for the detection of surface flaws - In non-ferromagnetic metallic products
- ANSI/NEMA OS 2-2013(R2020) Nonmetallic Outlet Boxes, Device Boxes, Covers and Box Supports
- NS-EN 13068-3:2001 Non-destructive testing — Radioscopic testing — Part 3: General principles of radioscopic testing of metallic materials by X- and gamma rays
- NS-EN 17391:2022 Non-destructive testing - Acoustic emission testing - In-service acoustic emission monitoring of metallic pressure equipment and structures - General requirements
- AENOR UNE-EN 15495:2008 Non Destructive testing - Acoustic emission - Examination of metallic pressure equipment during proof testing - Zone location of AE sources
- DANSK DS/EN 17391:2022 Non-destructive testing – Acoustic emission testing – In-service acoustic emission monitoring of metallic pressure equipment and structures – General requirements
- NS-EN 14584:2005 Non-destructive testing — Acoustic emission — Examination of metallic pressure equipment during proof testing — Planar location of AE sources
- NS-EN 15495:2007 Non Destructive testing — Acoustic emission — Examination of metallic pressure equipment during proof testing — Zone location of AE sources
- BS EN 60298:1996 A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
- NS-EN 14584:2013 Non-destructive testing — Acoustic emission testing — Examination of metallic pressure equipment during proof testing — Planar location of AE sources
US-FCR
- FCR COE CWGS 16345-1993 METAL CLAD SWITCHGEAR, BUS, AND GROUNDING EQUIPMENT
ES-AENOR
- UNE 7-469-1988 Metal materials, metal wire folding AC test
British Standards Institution (BSI)
- BS EN ISO 15548-3:2008 Non-destructive testing - Equipment for eddy current examination - Part 3: System characteristics and verification
- BS EN ISO 15548-1:2013 Non-destructive testing. Equipment for eddy current examination. Instrument characteristics and verification
- BS ISO 20669:2017 Non-destructive testing. Pulsed eddy current testing of ferromagnetic metallic components
- BS EN ISO 5579:2013 Non-destructive testing. Radiographic testing of metallic materials using film and X- or gamma rays. Basic rules
- BS EN ISO 15548-2:2008 Non-destructive testing - Equipment for eddy current examination - Part 2: Probe characteristics and verification
European Committee for Standardization (CEN)
- EN 764-5:2014 Pressure equipment - Part 5: Inspection documentation of metallic materials and compliance with the material specification
- FprEN 17391-2020 Non-destructive testing - Acoustic emission testing - In-service acoustic emission monitoring of metallic pressure equipment and structures - General requirements
- EN 13068-3:2001 Non-destructive testing - Radioscopic testing - Part 3: General principles of radioscopic testing of metallic materials by X- and gamma rays
Society of Automotive Engineers (SAE)
- SAE AS915-2002 Conductivity Standard - Eddy Current: Type of Aluminum Alloy Temper Testing Equipment
PL-PKN
- PN BN 9378-37-1967 Wire communication auxiliary equipment. sliding metal ladder
YU-JUS
- JUS C.A4.019-1986 Mechanlcal testing ofmetals. VVrapping test of wire
Indonesia Standards
- SNI 18-6931-2002 Non-destructive testing radiograpic examination of metallic materials by X-rays and Y-rays - Basic rules
German Institute for Standardization
- DIN EN 13068-3:2001-12 Non-destructive testing - Radioscopic testing - Part 3: General principles for the radioscopic testing of metallic materials by X- and gamma rays; German version EN 13068-3:2001
- DIN EN 17391:2022 Non-destructive testing - Acoustic emission testing - In-service acoustic emission monitoring of metallic pressure equipment and structures - General requirements
- DIN EN 17391:2019 Non-destructive testing - Acoustic emission testing - In-service acoustic emission monitoring of metallic pressure equipment and structures - General requirements; German and English version prEN 17391:2019
- DIN EN 17391:2022-08 Non-destructive testing - Acoustic emission testing - In-service acoustic emission monitoring of metallic pressure equipment and structures - General requirements; German version EN 17391:2022
- DIN EN 15495:2008-02 Non destructive testing - Acoustic emission - Examination of metallic pressure equipment during proof testing - Zone location of AE sources; German version EN 15495:2007
- DIN EN 14584:2013-07 Non-destructive testing - Acoustic emission testing - Examination of metallic pressure equipment during proof testing - Planar location of AE sources; German version EN 14584:2013
IN-BIS
- IS 11612-1984 Operating specifications for eddy current testing of non-ferrous metal seamless pipes
VE-FONDONORMA
- NORVEN 559-1971 Soft metal wires used in electronic devices
- NORVEN 558-1972 Soft metal wires used in electronic devices
CZ-CSN
- CSN 01 5057 ZZ1-2000 Non-destructive testing - testing of pipes of non-ferrous metals and their alloys using eddy current methods
CEN - European Committee for Standardization
- PREN 17391-2019 Non-destructive testing - Acoustic emission testing - In-service acoustic emission monitoring of metallic pressure equipment and structures - General requirements
- EN 14584:2005 Non-destructive testing - Acoustic emmission - Examination of metallic pressure equipment during proof testing - Planar location of AE sources
Korean Agency for Technology and Standards (KATS)
- KS B ISO 5579-2016(2021) Non-destructive testing-Radiographic examination of metallic materials by X-and gamma-rays-Basic rules
- KS A 4606-1995 Industrial X-ray apparatus for radiographic testing
NZ-SNZ
- NZSS GP 42-1964 METAL OFFICE EQUIPMENT
American Society of Mechanical Engineers (ASME)
- ASME SEC V B SE-1030-2003 Standard Test Method for Radiographic Examination of Metallic Castings ASTM E 1030-00
Standard Association of Australia (SAA)
- AS 2168.2:2009 Nondestructive testing Computerized radiography uses X-rays and gamma rays to detect metallic materials
- AS 2084:1987 Non-destructive testing - Eddy current testing of metal tubes
ZA-SANS
- SANS 394:2004 Non-destructive testing - Radiographic examination of metallic materials by X- and gamma-rays - Basic rules
ES-UNE
- UNE-EN 17391:2023 Non-destructive testing - Acoustic emission testing - In-service acoustic emission monitoring of metallic pressure equipment and structures - General requirements
- UNE-EN 14584:2013 Non-destructive testing - Acoustic emission - Examination of metallic pressure equipment during proof testing - Planar location of AE sources
- UNE-EN ISO 20339:2018 Non-destructive testing - Equipment for eddy current examination - Array probe characteristics and verification (ISO 20339:2017)
Lithuanian Standards Office
- LST EN 14584-2005 Non-destructive testing - Acoustic emission - Examination of metallic pressure equipment during proof testing - Planar location of AE sources
- LST EN 13068-3-2002 Non-destructive testing - Radioscopic testing - Part 3: General principles of radioscopic testing of metallic materials by X- and gamma rays
NEMA - National Electrical Manufacturers Association
- NEMA C37.51-2018 Switchgear — Metal-Enclosed Low Voltage AC Power Circuit Breaker Switchgear Assemblies — Conformance Test Procedures
- NEMA C37.51-1989 Switchgear Metal Enclosed Low Voltage AC Power Circuit Breaker Switchgear Assemblies - Conformance Test Procedure
Danish Standards Foundation
- DS/EN 13068-3:2001 Non-destructive testing - Radioscopic testing - Part 3: General principles of radioscopic testing of metallic materials by X- and gamma rays
RU-GOST R
- GOST 27333-1987 Nondestructive testing. Measurement of electrical conductivity of nonferrous metals by eddy current method
AENOR
- UNE-EN 13068-3:2002 NON-DESTRUCTIVE TESTING - RADIOSCOPIC TESTING - PART 3: GENERAL PRINCIPLES OF RADIOSCOPIC TESTING OF METALLIC MATERIALS BY X-AND GAMMA RAYS.
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