Primary endpoint of the trial
Primary endpoint of the trial, Total:164 items.
The international standard classification for "Primary endpoint of the trial" includes: Earthworks. Excavations. Foundation construction. Underground works , IT applications in transport and trade , Navigation and control equipment , Product and company certification. Conformity assessment .
The Chinese standard classification for "Primary endpoint of the trial" includes: Subgrade and foundation engineering , Computer application , Management, utilization and service of marine communication and navigation equipment , Standardization and Quality Management .
Military Standard of the People's Republic of China-General Armament Department
- GJB 8327-2015 Conventional weapon test ballistic end point coordinate test method
- GJB 1801-1993 Main performance test methods of inertial technology testing equipment
Professional Standard - Ferrous Metallurgy
- YBJ 236-1991 Key test point for pile foudation
Professional Standard - Traffic
- JT/T 412-2000 Codes of main controlling point of national highway
交通运输部
- JT/T 1223-2018 Technical specification of the man overboard active alert and positioning terminal
- JT/T 412-2022 Godes of main controlling point of national highway
工业和信息化部
- YD/T 3789-2020 Technical Requirements and Testing Methods for Calling Line Identification Presentation of Fixed Terminals
未注明发布机构
- DIN IEC 1342:1996 Nuclear instrumentation — Multichannel! pulse height analyzers — Main characteristics, technical requirements and test methods
Xinjiang Provincial Standard of the People's Republic of China
- DB65/T 3399-2012 Specifications for Interpretation of Major Scenic Spots in Changji City
- DB65/T 3400-2012 Specifications for Interpretation of Major Scenic Spots in Manas County
Zhejiang Provincial Standard of the People's Republic of China
- DB33/T 2222-2019 Requirements for main technical parameters of shipborne broadband satellite communication terminals
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 17730-1999 The rules of coding for main controlling point of arterial highway
中国国家认证认可监督管理委员会
- RB/T 173-2018 Guideline of assessment for humane endpoints in animal experiment
Anhui Provincial Standard of the People's Republic of China
- DB34/T 4488-2023 Technical specifications for fixed-point monitoring of major animal diseases
- DB34/T 1202-2010 Technical regulations for the prevention and control of main diseases of channel catfish
Professional Standard - Post and Telecommunication
- YD/T 965-2013 The safety requirement and test method for telecommunication terminal equipment
- YD/T 4877-2024 General functional technical requirements and test methods for active health data collection terminal equipment
Hunan Provincial Standard of the People's Republic of China
- DB43/T 1852-2020 Road transport vehicle active safety protection system terminal technical requirements and test procedures
Professional Standard-Ships
- CB/T 3498-1993 Technical requirements for post-repair tests of marine diesel engines
- CB/T 3498-2013 Trial technical require ment after diesel main engine repaired
Professional Standard - Military and Civilian Products
- WJ 2254-1994 Measuring method for main meteorological parameters of ballistic test in ordnance industry proving ground
Professional Standard - Railway
- TB/T 2354-1993 Main technical requirements and test methods for passenger train attendant telephones
SCC
- AS G21:1969 End-quench test (Jominy test) for hardenability of steel
- BS ISO 10328-3:1996 Prosthetics. Structural testing of lower-limb prostheses-Principal structural tests
- BS 2011-2.1CB:1990 Environmental testing. Tests-Test Cb. Damp heat, steady state, primarily for equipment
- AWWA 51490 Pilot Testing With the End in Mind
- 09/30199658 DC BS ISO 13194. Box pallets. Principal requirements and test methods
- DANSK DS/ISO 21524:2021 Fire resistance tests – Elements of building construction – Requirements for active fire curtains
- AWWA JAW54059 Journal AWWA — Pilot-Testing With the End in Mind
- BS ISO 10328-4:1996 Prosthetics. Structural testing of lower-limb prostheses-Loading parameters of principal structural tests
United States Navy
- NAVY MIL-I-60676 A VALID NOTICE 1-1986 IGNITER, PRIMARY
- NAVY MIL-I-60676 A-1978 IGNITER, PRIMARY
- NAVY MIL-I-60676 A NOTICE 2-1999 IGNITER, PRIMARY
- NAVY MIL-I-60676 A (1)-1980 IGNITER, PRIMARY
European Association of Aerospace Industries
- AECMA PREN 3841-505-1994 Aerospace Series Circuit Breakers Mechanical Test Methods Strength of Main Terminals
- AECMA PREN 3841-505-1998 Aerospace Series Circuit Breakers Test Methods Part 505 : Strength of Main Terminals Edition P 2
- AECMA PREN 3841-505-1996 Aerospace Series Circuit Breakers Test Methods Part 505 : Strength of Main Terminals Edition P 1
- AECMA PREN 3841-505-2003 Aerospace Series Circuit Breakers Test Methods Part 505: Strength of Main Terminals Edition P 3
CZ-CSN
- CSN 35 7000-1956 Main home box for terminal network
- CSN 35 7002-1956 Main home box for terminal network HDS2
- CSN 35 7001-1956 Main home box for terminal network HDS1
- CSN 36 6112-1981 Telephone sets for general use. Main features. Technical specifications. Methods of testing and measurement
- CSN 26 2008-1993 Vertical bucket elevators. General characteristics and dimensions
- CSN 36 6118-1985 Telephone sets with amplification of receiving. Main features. Technical specifications. Methods of testing and measurement
British Standards Institution (BSI)
- BS EN 60512-16-6:2008 Connectors for electronic equipment – Tests and measurements –– Part 16-6: Mechanical tests on contacts and terminations – Test 16f: Robustness of terminations
- BS EN 60512-16-3:2008 Connectors for electronic equipment - Tests and measurements - Part 16-3: Mechanical tests on contacts and terminations – Test 16c: Contact-bending strength
- BS EN 60512-16-18:2008 Connectors for electronic equipment - Tests and measurements - Part 16-18: Mechanical tests on contacts and terminations — Test 16r: Deflection of contacts, simulation
- BS EN 60512-16-5:2008 Connectors for electronic equipment - Tests and measurements - Mechanical tests on contacts and terminations - Test 16e - Gauge retention force (resilient contacts)
- BS EN 60512-16-9:2008 Connectors for electronic equipment. Tests and measurements. Mechanical tests on contacts and terminations. Test 16i. Grounding contact spring holding force
- BS EN 60512-16-7:2008 Connectors for electronic equipment – Tests and measurements –– Part 16-7: Mechanical tests on contacts and terminations – Test 16g: Measurement of contact deformation after crimping
- BS EN 60512-16-1:2008 Connectors for electronic equipment - Tests and measurements - Part 16-1: Mechanical tests on contacts and terminations — Test 16a: Probe damage
- BS EN 60068-2-31:2008 Environmental testing –– Part 2-31: Tests – Test Ec: Rough handling shocks, primarily for equipment-type specimens
- BS EN 13726-3:2003 Test methods for primary wound dressings - Waterproofness
- BS EN 13726-4:2003 Test methods for primary wound dressings - Conformability
- BS EN 13726-1:2002 Test methods for primary wound dressings - Aspects of absorbency
- BS EN 60512-16-2:2008 Connectors for electronic equipment - Tests and measurements - Part 16-2: Mechanical tests on contacts and terminations — Test 16b: Restricted entry
- BS ISO 10328-3:1997 Prosthetics.Structural testing of lower-limb prostheses - Principal structural tests
- BS EN 13726-6:2003 Test methods for primary wound dressings - Odour control
- BS EN 60512-16-11:2008 Connectors for electronic equipment. Tests and measurements. Mechanical tests on contacts and terminations. Test 16k. Stripping force, solderless wrapped connections
- BS EN 60068-2-31:1993 Environmental testing - Test methods - Test Ec - Drop and topple, primarily for equipment-type specimens
- BS EN 60512-16-13:2008 Connectors for electronic equipment - Tests and measurements - Part 16-13: Mechanical tests on contacts and terminations — Test 16m: Un-wrapping, solderless wrapped connections
Society of Automotive Engineers (SAE)
- SAE J2636-2006 Corrosion Test Master Establishment
HU-MSZT
- MSZ KGST 681-1977 Diamond Types and Key Features
- MSZ 16678-1982 Main features of SECAM color TV system
- MSZ 17000-1960 Main features of stone industry machinery
- MSZ 2559/4-1986 Main indicators and characteristics of motorcycle 12V
- MSZ 7472/3-1980 Main features of hydraulic controller, circuit changer
- MSZ 12433/8-1969 Main technical features Lift lifting capacity, speed
- MSZ KGST 1915-1979 Main dimensions and features of multi-layer safety connection shafts
RU-GOST R
- GOST 28226-1989 Basic environmental testing procedures. Part 2. Tests. Test Kc: Sulphur dioxide test for contacts and connections
- GOST 28227-1989 Basic environmental testing procedures. Part 2. Tests. Test Kd: Hydrogen sulphide test for contacts and connections
- GOST 28217-1989 Basic environmental testing. Part 2. Tests. Test Ec: Drop and Topple, primarily for equipment-type specimens
- GOST 28200-1989 Basic environmental testing procedures. Part 2. Tests. Test B: Dry heat
- GOST 28199-1989 Basic environmental, testing procedures. Part 2. Tests. Test A: Cold
- GOST 28211-1989 Basic environmental testing procedures. Part 2. Tests. Test T: Soldering
- GOST 28210-1989 Basic environmental testing procedures. Part 2. Tests. Test Q: Sealing
- GOST 28207-1989 Basic environmental testing procedures. Part 2. Tests. Test Ka: Salt mist
- GOST 28214-1989 Basic environmental testing procedures. Part 2: Tests. Guidance for damp heat tests
European Telecommunications Standards Institute (ETSI)
- ETSI ETS 300 483-1996 Terminal Equipment (TE); Integrated Services Digital Network (ISDN); Multipoint Communications for Audiovisual Services; Main Functionalities and Basic Requirements for Multipoint Control Units (MCUs)
- ETSI PRETS 300 483-1995 Terminal Equipment (TE); Integrated Services Digital Network (ISDN) Multipoint Communications for Audiovisual Services; Main Functionalities and Basic Requirements for Multipoint Control Units (MCUs)
- ETSI PRETS 300 483-1996 Terminal Equipment (TE); Integrated Services Digital Network (ISDN); Multipoint Communications for Audiovisual Services; Main Functionalities and Basic Requirements for Multipoint Control Units (MCUs)
Danish Standards Foundation
- DS/ETS 300483:1997 Terminal Equipment (TE) - Integrated Services Digital Network (ISDN) - Multipoint communications for audiovisual services - Main functionalities and basic requirements for Multipoint Control Units (MCUs)
- DS/ISO 21524:2021 Fire resistance tests – Elements of building construction – Requirements for active fire curtains
International Electrotechnical Commission (IEC)
- IEC 60512-16-6:2008 Connectors for electronic equipment - Tests and measurements - Part 16-6: Mechanical tests on contacts and terminations - Test 16f: Robustness of terminations
- IEC 60512-16-3:2008 Connectors for electronic equipment - Tests and measurements - Part 16-3: Mechanical tests on contacts and terminations - Test 16c: Contact-bending strength
- IEC 60512-16-18:2008 Connectors for electronic equipment - Tests and measurements - Part 16-18: Mechanical tests on contacts and terminations - Test 16r: Deflection of contacts, simulation
- IEC 60512-16-9:2008 Connectors for electronic equipment - Tests and measurements - Part 16-9: Mechanical tests on contacts and terminations - Test 16i: Grounding contact spring holding force
- IEC 60512-16-7:2008 Connectors for electronic equipment - Tests and measurements - Part 16-7: Mechanical tests on contacts and terminations - Test 16g: Measurement of contact deformation after crimping
- IEC 60512-16-5:2008 Connectors for electronic equipment - Tests and measurements - Part 16-5: Mechanical tests on contacts and terminations - Test 16e: Gauge retention force (resilient contacts)
- IEC 60512-16-1:2008 Connectors for electronic equipment - Tests and measurements - Part 16-1: Mechanical tests on contacts and terminations - Test 16a: Probe damage
- IEC 60068-2-67:1995 Environmental testing - Part 2: Tests - Test Cy: Damp heat, steady state, accelerated test primarily intended for components
German Institute for Standardization
- DIN EN 60512-16-6:2009 Connectors for electronic equipment - Tests and measurements - Part 16-6: Mechanical tests on contacts and terminations - Test 16f: Robustness of terminations (IEC 60512-16-6:2008); German version EN 60512-16-6:2008
- DIN ETS 300483:1996 Terminal Equipment (TE) - Integrated Services Digital Network (ISDN) - Multipoint communications for audiovisual services; main functionalities and basic requirements for Multipoint Control Units (MCUs); English version ETS 300483:1996
- DIN EN 60512-16-3:2009 Connectors for electronic equipment - Tests and measurements - Part 16-3: Mechanical tests on contacts and terminations - Test 16c: Contact-bending strength (IEC 60512-16-3:2008); German version EN 60512-16-3:2008
- DIN EN 60512-16-18:2009 Connectors for electronic equipment - Tests and measurements - Part 16-18: Mechanical tests on contacts and terminations - Test 16r: Deflection of contacts, simulation (IEC 60512-16-18:2008); German version EN 60512-16-18:2008
- DIN ETS 300483:1996-12 Terminal Equipment (TE) - Integrated Services Digital Network (ISDN) - Multipoint communications for audiovisual services; main functionalities and basic requirements for Multipoint Control Units (MCUs); English version ETS 300483:1996
- DIN EN 60512-16-9:2009 Connectors for electronic equipment - Tests and measurements - Part 16-9: Mechanical tests on contacts and terminations - Test 16i: Grounding contact spring holding force (IEC 60512-16-9:2008); German version EN 60512-16-9:2008
- DIN EN 60512-16-7:2009 Connectors for electronic equipment - Tests and measurements - Part 16-7: Mechanical tests on contacts and terminations - Test 16g: Measurement of contact deformation after crimping (IEC 60512-16-7:2008); German version EN 60512-16-7:2008
- DIN EN 60068-2-67:1996 Environmental testing - Part 2: Tests; test Cy: Damp heat, steady state, accelerated test primarily intended for components (IEC 60068-2-67:1995); German version EN 60068-2-67:1996
- DIN EN 60512-16-1:2009 Connectors for electronic equipment - Tests and measurements - Part 16-1: Mechanical tests on contacts and terminations - Test 16a: Probe damage (IEC 60512-16-1:2008); German version EN 60512-16-1:2008
Association Francaise de Normalisation
- NF C93-400-16-6*NF EN 60512-16-6:2008 Connectors for electronic equipment - Tests and measurements - Part 16-6 : mechanical tests on contacts and terminations - Test 16f : robustness of terminations
- NF Z82-483*NF ETS 300483:2001 Terminal Equipment (TE) - Integrated Service Digital Network (ISDN) - Multipoint communications for audiovisual services - Main functionalities and basic requirements for Multipoint Control Units (MCUs)
- NF C93-400-16-3*NF EN 60512-16-3:2008 Connectors for electronic equipment - Tests and measurements - Part 16-3 : mechanical tests on contacts and terminations - Test 16c : contact-bending strength
- NF C93-400-16-18*NF EN 60512-16-18:2008 Connectors for electronic equipment - Tests and measurements - Part 16-18 : mechanical tests on contacts and terminations - Test 16r : deflection of contacts, simulation
- NF C93-400-16-7*NF EN 60512-16-7:2008 Connectors for electronic equipment - Tests and measurements - Part 16-7 : mechanical tests on contacts and terminations - Test 16g : measurement of contact deformation after crimping
- NF C93-400-16-9*NF EN 60512-16-9:2008 Connectors for electronic equipment - Tests and measurements - Part 16-9 : mechanical tests on contacts and terminations - Test 16i : grounding contact spring holding force
- NF C93-400-16-5*NF EN 60512-16-5:2008 Connectors for electronic equipment - Tests and measurements - Part 16-5 : mechanical tests on contacts and terminations - Test 16e : gauge retention force (resilient contacts)
- NF ETS 300483:2001 Telecommunications - Terminal equipment (TE) - Integrated services digital network (ISDN) - Multipoint communications for audiovisual services - Main functionalities and basic requirements for conference bridges
- NF C93-400-16-1*NF EN 60512-16-1:2008 Connectors for electronic equipment - Tests and measurements - Part 16-1 : mechanical tests on contacts and terminations - Test 16a : probe damage
- NF G28-001:1967 Textiles. Asbestos yarn. Main characteristics and testing methods.
- NF EN 60068-2-67:1998 Environmental tests - Part 2: tests - Cy test: continuous damp heat test, accelerated test applicable primarily to components
- NF C20-767*NF EN 60068-2-67:1998 Environmental testing. Part 2 : tests. Test Cy : damp heat, steady state, accelerated test primarily intended for components.
European Committee for Electrotechnical Standardization(CENELEC)
- EN 60512-16-6:2008 Connectors for electronic equipment - Tests and measurements - Part 16-6: Mechanical tests on contacts and terminations - Test 16f: Robustness of terminations
- EN 60512-16-3:2008 Connectors for electronic equipment - Tests and measurements - Part 16-3: Mechanical tests on contacts and terminations - Test 16c: Contact-bending strength
- EN 60512-16-18:2008 Connectors for electronic equipment - Tests and measurements - Part 16-18: Mechanical tests on contacts and terminations - Test 16r: Deflection of contacts, simulation
- EN 60512-16-9:2008 Connectors for electronic equipment - Tests and measurements - Part 16-9: Mechanical tests on contacts and terminations - Test 16i: Grounding contact spring holding force
- EN 60512-16-7:2008 Connectors for electronic equipment - Tests and measurements - Part 16-7: Mechanical tests on contacts and terminations - Test 16g: Measurement of contact deformation after crimping
- EN 60512-16-1:2008 Connectors for electronic equipment - Tests and measurements - Part 16-1: Mechanical tests on contacts and terminations - Test 16a: Probe damage
- EN 60512-16-2:2008 Connectors for electronic equipment - Tests and measurements - Part 16-2: Mechanical tests on contacts and terminations - Test 16b: Restricted entry
ETSI - European Telecommunications Standards Institute
- ETS 300 483-1996 Terminal Equipment (TE); Integrated Services Digital Network (ISDN); Multipoint Communications for Audiovisual Services; Main Functionalities and Basic Requirements for Multipoint Control Units (MCUs)
- PRETS 300 483-1996 Terminal Equipment (TE); Integrated Services Digital Network (ISDN); Multipoint Communications for Audiovisual Services; Main Functionalities and Basic Requirements for Multipoint Control Units (MCUs)
- PRETS 300 483-1995 Terminal Equipment (TE); Integrated Services Digital Network (ISDN) Multipoint Communications for Audiovisual Services; Main Functionalities and Basic Requirements for Multipoint Control Units (MCUs)
International Organization for Standardization (ISO)
- ISO 13194:2011 Box pallets - Principal requirements and test methods
- ISO 10328-3:1996 Prosthetics - Structural testing of lower-limb prostheses - Part 3: Principal structural tests
- ISO 22870:2006 Point-of-care testing (POCT) - Requirements for quality and competence
American Society for Testing and Materials (ASTM)
- ASTM E324-23 Standard Test Method for Relative Initial and Final Melting Points and the Melting Range of Organic Chemicals
- ASTM E324-99 Test Method for Relative Initial and Final Melting Points and the Melting Range of Organic Chemicals
- ASTM D8422-21 Standard Practice for Pre-Stressing Terminal Point-of-Use Water Filters before Testing by Test Method F838
- ASTM D1670-98(2003) Standard Test Method for Failure End Point in Accelerated and Outdoor Weathering of Bituminous Materials
- ASTM D1670/D1670M-11(2023) Standard Test Method for Failure End Point in Accelerated and Outdoor Weathering of Bituminous Materials
- ASTM D1670/D1670M-11(2018) Standard Test Method for Failure End Point in Accelerated and Outdoor Weathering of Bituminous Materials
US-FCR
- FCR COE ER 70-1-6-1981 PRINCIPAL LABORATORY
Japanese Industrial Standards Committee (JISC)
- JIS C 5402-16-5:2012 Connectors for electronic equipment -- Tests and measurements -- Part 16-5: Mechanical tests on contacts and terminations -- Test 16e: Gauge retention force (resilient contacts)
- JIS C 5402-16-6:2014 Connectors for electronic equipment -- Tests and measurements -- Part 16-6: Mechanical tests on contacts and terminations -- Test 16f: Robustness of terminations
- JIS C 5402-16-7:2012 Connectors for electronic equipment -- Tests and measurements -- Part 16-7: Mechanical tests on contacts and terminations -- Test 16g: Measurement of contact deformation after crimping
- JIS C 60068-2-56:1996 Environmental testing Part 2: Tests. Test Cb: Damp heat, steady state, primarily for equipment
- JIS E 5008:1993 Main rectifiers for railway rolling stock -- Test methods
- JIS C 0032:1996 Environmental testing Part 2: Tests. Test Cb: Damp heat, steady state, primarily for equipment
- JIS C 5402-16-20:2002 Connectors for electronic equipment -- Tests and measurements -- Part 16-20: Mechanical tests on contacts and terminations -- Test 16t: Mechanical strength (wired termination of solderless connections)
- JIS C 5402-16-1:2014 Connectors for electronic equipment -- Tests and measurements -- Part 16-1: Mechanical tests on contacts and terminations -- Test 16a: Probe damage
- JIS C 60068-2-67:2001 Environmental testing -- Part 2: Tests -- Test Cy: Damp heat, steady state, accelerated test primarily intended for components
- JIS C 60068-2-31:1995 Environmental testing Part 2: Tests. Test Ec: Drop and topple, primarily for equipment-type specimens
RO-ASRO
- STAS 9418/1-1986 TELEPHONIC INCANDESCENT LAMPS Dimensions and main characteristics
- STAS 11334-1979 BELT SPEED VARIATORS Typs and mains characteristics
GOST
- GOST R 70359-2022 Cranes. Dead-end stops of rail tracks. Technical requirements
Standard Association of Australia (SAA)
- AS 60068.2.67:2003 Environmental testing - Tests - Test Cy: Damp heat, steady state accelerated test primarily intended for components
NEMA - National Electrical Manufacturers Association
- NEMA BU 2-1996 Major Requirements Related to the Application and Testing of Low Voltage Busway
- NEMA BU 2-1991 Major Requirements Related to the Application and Testing of Low Voltage Busway
- NEMA XR 6-1979 LOCATION OF PRIMARY OPERATING CONTROLS FOR SPOT-FILM DEVICES
AT-ON
- ONORM V 5720-1993 Land Containers — Principal dimensions, corner fittings and tests Conteneurs pour le transport terrestre — Dimensions principales, garniture d'equerre et essais
European Committee for Standardization (CEN)
- EN ISO 17296-3:2016 Additive manufacturing - General principles - Part 3: Main characteristics and corresponding test methods
Indonesia Standards
- SNI 04-2093-1990 General rules for main distribution frame terminal block telephone cables
PL-PKN
- PN S76060-1970 Electrical e?uipiman.t of vehicles gnition coils. Main dimensions
GOSTR
- GOST 29166-1991 Mechanical attractions. Steel structures. Principal rules of the design
Korean Agency for Technology and Standards (KATS)
- KS P ISO 10328-3:2004 Prosthetics-Structural testing of lower-limb prostheses-Part 3:Principal structural tests
- KS P ISO 10328-3:2009 Prosthetics-Structural testing of lower-limb prostheses-Part 3:Principal structural tests
- KS C IEC 60068-2-67:2020 Environmental testing — Part 2-67: Tests — Test Cy: Damp heat, steady state, accelerated test primarily intended for components
SE-SIS
- SIS 02 12 55-1973 Measuring and setting out, primary secondary and detail points on level
KR-KS
- KS P ISO 10328-3-2004 Prosthetics-Structural testing of lower-limb prostheses-Part 3:Principal structural tests
- KS C IEC 60068-2-67-2023 Environmental testing — Part 2-67: Tests — Test Cy: Damp heat, steady state, accelerated test primarily intended for components
- KS C IEC 60068-2-67-2020 Environmental testing — Part 2-67: Tests — Test Cy: Damp heat, steady state, accelerated test primarily intended for components
ITU-R - International Telecommunication Union/ITU Radiocommunication Sector
- ITU-R M.630 SPANISH-1986 PRINCIPALES CARACTER?STICAS DE LOS INTERROGADORES-RESPONDEDORES (IRB) DE DOS FRECUENCIAS INSTALADOS A BORDO DE BARCOS
Institute of Electrical and Electronics Engineers (IEEE)
- IEEE 48-1990 Test procedures and requirements for high-voltage alternating-current cable terminations
CEN - European Committee for Standardization
- EN ISO 22870:2016 Point-of-care testing (POCT) - Requirements for quality and competence
Standard test method for fire effects of protective clothing materials not primarily intended for fire resistance,Multichannel Analyzer Part 1 Main Technical Requirements and Test Methods,Main test materials or reagents,Standard Test Method for Major and Minor Elements in Coal and Coke by X-ray Fluorescence,Main features of UV aging test chamber,Primary endpoint of the trial,Primary Clinical Endpoint,primary endpoint,Primary and Secondary Endpoints,The scratch resistance test is mainly aimed at