Sign In |Help & Support
ALL SECTORS
  • ALL SECTORS
  • GB(National Standard)
  • CB(Shipping)
  • CECS(Engineering Construction)
  • CJ(Urban Construction)
  • CY(News and Publication)
  • DB(Provincial Standard)
  • DL(Electricity & Power)
  • DZ(Geology & Mineralogy)
  • FZ(Spinning & Textile)
  • GA(Public Security)
  • HB(Aviation)
  • HG(Chemical Industry)
  • HJ(Environmental Protection)
  • JB(Machinery)
  • JC(Building Materials)
  • JG(Building & Construction)
  • JJ(Metering)
  • JT(Highway & Transportation)
  • LY(Forestry)
  • MT(Coal)
  • NB(Energy)
  • NY(Agriculture)
  • QB(Light Industry)
  • QC(Automobile & Vehicle)
  • QJ(Aerospace)
  • SH(Petrochemical)
  • SJ(Electronics)
  • SL(Water Resources)
  • SN(Commodity Inspection)
  • SY(Oil & Gas)
  • TB(Railway & Train)
  • YB(Ferrous Metallurgy)
  • YC(Tobacco)
  • YD(Telecommunication)
  • YY(Medical Device)
Database: 365,228(8 Aug 2026)

Standard visual type

Standard visual type, Total:265 items.

The international standard classification for "Standard visual type" includes: Farm buildings and installations in general , Aircraft and space vehicles in general , Textiles in general .

The Chinese standard classification for "Standard visual type" includes: Technical management , Basic standards and general methods , Terms and Symbols .


Group Standards of the People's Republic of China

  • T/CQCBDS 0014-2018 Unity project optimization standard
  • T/CGDF 00006-2020 Small Cetaceans Necropsy and Specimen Collection Standard
  • T/ZBTA 14-2021 Evaluation standard of building information model application in building construction project
  • T/SIA 010.11-2021 Software Project Management Standard System Criteria—Part 11:Evaluation Standard for Project Management Ability of Software Enterprises
  • T/SIA 010.4-2021 Software Project Management Standard System Criteria—Part 4:Software Project Manager Assistant Capability Evaluation Standard
  • T/FCEAS 005-2021 Fujian construction project evaluation standardsof Building Information Modeling application
  • T/YJC 013-2023 Science and Technology Project Application Service Standards
  • T/SIA 010.1-2021 Software Project Management Standard System
  • T/SIA 010.11-2024 Software Project Management Standard System Criteria—Part 11: Evaluation Standard for Project Management Ability of Software Enterprises

未注明发布机构

Professional Standard - Agriculture

Professional Standard - Chemical Industry

  • HG/T 20639-1998 (Part 1~3) Typical Tables and Standard List for Engineering Design of Instrumentation

Professional Standard - Public Safety Standards

  • GA/T 2196-2024 Multi-channel psychological test Monocular standard rope problem test method

Taiwan Provincial Standard of the People's Republic of China

Military Standard of the People's Republic of China-General Armament Department

Beijing Provincial Standard of the People's Republic of China

  • DB11/T 2297-2024 Data standard for integrated multi-survey results of engineering construction projects

Professional Standard - Aerospace

  • QJ 2777.3-1995 Cataloging Code for Aerospace Literatures - Standard Document

Ministry of Housing and Urban-Rural Development of the People's Replublic of China

  • GB/T 51240-2018 Standard for soil and water conservation monitoring and evaluation of production and construction projects

Professional Standard - Textile

  • FZ/T 01047-1997 Standard light sources and conditions for visual assessment of textilecolour fastness

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

American Society for Testing and Materials (ASTM)

  • ASTM F2812-12(2018) Standard Specification for Goggle- and Spectacle-Type Eye Protectors for Selected Motor Sports
  • ASTM D3823-07(2012) Standard Practice for Determining Ticket Numbers for Sewing Threads
  • ASTM E3331-22 Standard Test Method for Measuring Target Modulus Using the Light Weight Deflectometer on Laboratory Compaction Characteristic Samples
  • ASTM E3331-22a Standard Test Method for Measuring Target Modulus Using Light Weight Deflectometer (LWD) on Compacted Proctor Mold Samples
  • ASTM E210-63(1999)e1 Standard Specification for Microscope Objective Thread
  • ASTM E323-80(1996)e1 Standard Specification for Perforated-Plate Sieves for Testing Purposes
  • ASTM F3603-23 Standard Specification for Eye Protectors for Handball
  • ASTM F1779-08 Standard Practice for Reporting Visual Observations of Oil on Water
  • ASTM F1779-97 Standard Practice for Reporting Visual Observations of Oil on Water
  • ASTM D7306-24 Standard Practice for Testing Low Temperature Film-Formation of Latex Paints by Visual Observation
  • ASTM F1779-97(2003) Standard Practice for Reporting Visual Observations of Oil on Water
  • ASTM F1779-08(2014) Standard Practice for Reporting Visual Observations of Oil on Water
  • ASTM F1595-00(2005) Standard Practice for Viewing Conditions for Visual Inspection of Membrane Switches
  • ASTM F1595-00(2012) Standard Practice for Viewing Conditions for Visual Inspection of Membrane Switches
  • ASTM E1368-23 Standard Practice for Visual Inspection of Asbestos Abatement Projects
  • ASTM D7372-25a-25 Standard Guide for Analysis and Interpretation of Proficiency Test Program Results
  • ASTM E2659-15 Standard Practice for Certificate Programs

US Federal Contractor Registration (USFCR)

U.S. Military Regulations and Norms

Institute of Electrical and Electronics Engineers (IEEE)

American National Standards Institute (ANSI)

  • ANSI/IEEE 1484.11.1:2004 Standard for Learning Technology - Data Model for Content Object Communication
  • ANSI/IEEE 1450.3:2007 Standard for Extensions to Standard Test Interface Language (STIL) (IEEE Std. 1450-1999) for Tester Target Specification
  • ANSI/TIA/EIA 102.BAEC-2000 Project 25 - Circuit Data Specification - New Technology Standards Project - Digital Radio Technical Standards
  • ANSI/OPEI B71.9-2012 Standard for Multipurpose Off-Highway Utility Vehicles
  • ANSI/TIA-102.BAEE-B-2010 Project 25 Radio Management Protocols - New Technology Standards Project - Digital Radio Technical Standards
  • ANSI/TIA-102.BAEB-A-2005 Project 25 - Packet Data Specification, New Technology Standards Project
  • ANSI/TIA-102.AABB-A-2005 Project 25 - Trunking Control Channel Formats - New Technology Standards Project - Digital Radio Technical Standards
  • ANSI/TIA/EIA 102.AABC-2000 Project 25 - Trunking Control Channel Messages - New Technology Standards Project - Digital Radio Technical Standards
  • ANSI/IEEE 16326:2009 Standard for Software Engineering - Project management
  • ANSI/TIA/EIA 102.BAAC-2000 Project 25 - Common Air Interface Reserved Values - New Technology Standards Project - Digital Radio Technical Standards
  • ANSI/TIA/EIA 102.AABB-2000 Project 25 - Trunking Control Channel Formats - New Technology Standards Project - Digital Radio Technical Standards

British Standards Institution (BSI)

  • BS ISO 10241-2:2012 Terminological entries in standards. Adoption of standardized terminological entries
  • BS ISO/IEC ISP 11189:1997 Information technology. International standardized profile FD12. Directory data definitions. MHS use of the directory
  • EP 401-2001 BSI Catalogue (CD-ROM) (subscription version)
  • EP 400-2000 BSI Catalogue 2002 (CD-ROM) (one-off version)
  • BS PD 6501-1:1982 The preparation of British Standards for building and civil engineering-Guide to the types of British Standard, their aims, relationship, content and application
  • BS ISO/IEC ISP 10615-3:1996 Information technology. International standardized profiles ADInn. OSI directory-ADI21. DSA performer role
  • BS ISO/IEC ISP 10615-4:1996 Information technology. International standardized profiles ADInn. OSI directory-ADI22. DSA invoker role
  • PD ISO/IEC TR 63306-2:2021 Smart manufacturing standards map (SM2). Catalogue
  • PD 6495-1992 IFAN-Guide 1. Method for determining the advantages of (company) standardization projects
  • BS PD ISO/IEC TR 63306-2:2021 Smart manufacturing standards map (SM2)-Catalogue

Ente Nazionale Italiano di Unificazione

Association Francaise de Normalisation

  • NF Z70-710:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILE FDI3. DIRECTORY DATA DEFINITIONS. FTAM USE OF THE DIRECTORY. (EUROPEAN STANDARD EN ISP 11190).
  • NF Z70-921-5:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 5 : FVT218. LOGICAL IMAGE CONTROL OBJECT. (EUROPEAN STANDARD EN ISP 11185-5).
  • NF Z70-921-7:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 7 : FVT2110. ENTRY-CONTROL CONTROL OBJECT. (EUROPEAN STANDARD EN ISP 11185-7).
  • NF Z70-921-4:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 4 : FVT217. HORIZONTAL TABULATION CONTROL OBJECT. (EUROPEAN STANDARD EN ISP 11185-4).
  • NF Z70-921-6:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 6 : FVT219. STATUS MESSAGE CONTROL OBJECT. (EUROPEAN STANDARD EN ISP 11185-6).
  • NF Z70-921-3:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 3 : FVT215, FVT216. APPLICATION RIO RECORD LOADING CONTROL OBJECT, TERMINAL RIO RECORD NOTIFICATION CONTROL
  • NF X03-001-2*NF ISO 10241-2:2012 Terminological entries in standards - Part 2 : adoption of standardized terminological entries
  • NF Z70-921-10:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 10 : FVT231. FORMS FEPCO (FIELD ENTRY PILOT CONTROL OBJECT) NO 1. (EUROPEAN STANDARD EN ISP 11185-10).
  • NF Z70-921-1:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 1 : FVT211, FVT212. SEQUENCED AND UNSEQUENCED APPLICATION CONTROL OBJECTS. (EUROPEAN STANDARD EN ISP 11185-
  • NF Z70-921-8:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 8 : FVT221. FORMS FEICO (FIELD ENTRY INSTRUCTION CONTROL OBJECT) NO 1. (EUROPEAN STANDARD EN ISP 11185-8).
  • NF Z70-921-11:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 11 : FVT232. PAGED FEPCO (FIELD ENTRY PILOT CONTROL OBJECT) NO 1. (EUROPEAN STANDARD EN ISP 11185-11).
  • NF Z70-921-2:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 2 : FVT213, FVT214. SEQUENCED AND UNSEQUENCED TERMINAL CONTROL OBJECTS. (EUROPEAN STANDARD EN ISP 11185-2).
  • NF Z70-921-9:1996 INFORMATION TECHNOLOGY. INTERNATIONAL STANDARDIZED PROFILES FVT2NN. VIRTUAL TERMINAL BASIC CLASS. REGISTER OF CONTROL OBJECT TYPE DEFINITIONS. PART 9 : FVT222. PAGED FEICO (FIELD ENTRY INSTRUCTION CONTROL OBJECT) NUMBER 1. (EUROPEAN STANDARD EN ISP 11185-

Association of German Mechanical Engineers

German Institute for Standardization

  • DIN 820 Beiblatt 1:2000-01 Standardized Catalog
  • DIN EN 60674 Bb.1:1999 Plastic films for electrical purposes - List of relevant standards, comparison of types (status of 1999)
  • DIN EN 60626 Bb.1:2000 Combined flexible materials for electrical insulation - Comparison of types - List of relevant standards (status as of 2000 March)
  • DIN EN 60454 Bb.1:1999 Pressure-sensitive adhesive tapes for electrical purposes - List of relevant standards, comparison of types (status as of 1999)

Alliance of Telecommunications Industry Solutions (ATIS)

Association for Electrical, Electronic & Information Technologies (VDE)

Standard Association of Australia (SAA)

  • CIDA 17-1995 The Australian Construction Industry - Pre-Qualification Criteria for Smaller Projects

Danish Standards Foundation

American Wood Protection Association

International Telecommunication Union (ITU)

United States Navy

United States Department of Veterans Affairs (VA)

Standards Norway

  • NS-ISO 10241-2:2012 Terminological entries in standards - Part 2: Adoption of standardized terminological entries
  • NS-ISO 15188:2001 Project management guidelines for terminology standardization

Vertrauen durch Sicherheit

International Organization for Standardization (ISO)

  • ISO 10241-2:2012 Terminological entries in standards - Part 2: Adoption of standardized terminological entries
  • ISO/CD TS 13604:2023 Underwater acoustics — Standard-target method of calibrating active sonars for imaging and measuring scattering
  • ISO/TR 8393:1985 Documentation; ISO bibliographic filing rules (International Standard Bibliographic Filing Rules); Exemplification of Bibliographic filing principles in a model set of rules
  • ISO Guide 5:1976 Designation of internationally standardized items

(U.S.) Telecommunications Industries Association

  • TIA/EIA-102.BAEA-2000 Project 25 Data Overview - New Technology Standards Project - Digital Radio Technical Standards
  • TIA/EIA/IS-102.BAEA-1998 Project 25 Data Overview - New Technology Standards Project
  • TIA-102.AABA-A-2004 Project 25 Trunking Overview ?New Technology Standards Project ?Digital Radio Technical Standards
  • TSB102.AACC-1997 Conformance Tests for the Project 25 Over-The-Air Rekeying (OTAR) Protocol New Technology Standards Project Digital Radio Technical Standards
  • TIA/EIA/IS-102.BAEC-1998 Project 25 Circuit Data Specification New Technology Standards Project Digital Radio Technical Standards
  • TSB102.AABD-1997 Project 25 Trucking Procedures New Technology Standards Project Digital Radio Technical Standards
  • TIA/EIA-102.BAEB-2000 Project 25 Packet Data Specification - New Technology Standards Project - Digital Radio Technical Standards
  • TIA/EIA-102.BAEC-2000 Project 25 Circuit Data Specification New Technology Standards Project Digital Radio Technical Standards
  • TSB102.BAEB-1995 APCO Project 25 Packet Data Specification New Technology Standards Project Digital Radio Technical Standards
  • TSB102.BAFA-A-1999 Project 25 Network Management Interface Overview - New Technology Standards Project - Digital Radio Technical Standards
  • TIA-102.BAEE-B-2010 Project 25 Radio Management Protocols New Technology Standards Project Digital Radio Technical Standards
  • TSB-102.AABG-1996 APCO Project 25 Conventional Control Messages New Technology Standards Project Digital Radio Technical Standards
  • TIA TSB-102.BAFA-A-1999 Project 25 Network Management Interface Overview-New Technology Standards Project-Digital Radio Technical Standards
  • TIA/EIA-102.AABC-2000 Project 25 Trunking Control Channel Messages New Technology Standards Project Digital Radio Technical Standards
  • TIA-102.AABB-A-2005 Project 25 Trunking Control Channel Formats ?New Technology Standards Projects ?Digital Radio Technical Standards
  • TIA-102.BAEA-1-2002 Project 25 - Data Overview - Addendum 1 - USB/PPP - New Technology Standards Project - Digital Radio Technical Standards
  • TIA-102.AABC-B-2005 Project 25 Trunking Control Channel Messages - New Technology Standards Project - Digital Radio Technical Standards
  • TIA-102.AABC-A-2004 Project 25 Trunking Control Channel Messages New Technology Standards Project Digital Radio Technical Standards
  • TIA/EIA/IS-102.AABC-1998 Project 25 Trunking Control Channel Messages New Technology Standards Project Digital Radio Technical Standards
  • TIA/EIA-102.BAEE-2000 Project 25 Radio Control Protocol (RCP) - New Technology Standards Project - Digital Radio Technical Standards
  • TSB-102.BAFA-A-1999 Project 25 Network Management Interface Overview-New Technology Standards Project-Digital Radio Technical Standards
  • TSB-102.BACC-1996 Project 25 - Inter-RF Subsystem Interface Overview New Technology Standards Project Digital Radio Technical Standards
  • TSB102.AABC-1996 APCO Project 25 Trunking Control Channel Messages New Technology Standards Project Digital Radio Technical Standards
  • TSB102.AACA-1996 APCO Project 25 Over-The-Air-Rekeying (OTAR) Protocol New Technology Standards Project Digital Radio Technical Standards
  • TIA TSB-102.BACC-A-2003 Project 25 Inter-RF Subsystem Interface Overview New Technology Standards Project Digital Radio Technical Standards
  • TIA TSB102-A-1995 APCO Project 25 System and Standards Definition

GCC Standardization Organization

  • GSO IEC/TR 62453-41:2013 Field device tool (FDT) interface specification - Part 41: Object model integration profile - Common object model

International Electrotechnical Commission (IEC)

  • IEC 60160:1963 Standard Atmospheric Conditions for Test Purposes (Edition 1.0)

Standards New Zealand

Associação Brasileira de Normas Técnicas

Clinical and Laboratory Standards Institute

  • CLSI MM18-2018 Interpretative Standards for Identification of Bacteria and Fungi by Targeted DNA Sequencing

Italian Standards Body (UNI)

Canadian Standards Association (CSA)

  • CSA ISO/IEC-11185-1-95:1995 Information Technology - International Standardized Profiles FVT2nn - Virtual Terminal Basic Class - Register of Control Object Type Definitions - Part 1: FVT211, FVT212 - Sequenced and Unsequenced Application Control Objects ISO/IEC ISP 11185-1:1994
  • CSA ISO/IEC-11185-5-95:1995 Information Technology - International Standardized Profiles FVT2nn - Virtual Terminal Basic Class - Register of Control Object Type Definitions - Part 5: FVT218 - Logical Image Control Object ISO/IEC ISP 11185-5:1994
  • CSA ISO/IEC-11185-6-95:1995 Information Technology - International Standardized Profiles FVT2nn - Virtual Terminal Basic Class - Register of Control Object Type Definitions - Part 6: FVT219 - Status Message Control Object ISO/IEC ISP 11185-6:1994
  • CSA ISO/IEC-11185-2-95:1995 Information Technology - International Standardized Profiles FVT2nn - Virtual Terminal Basic Class - Register of Control Object Type Definitions - Part 2: FVT213, FVT214 - Sequenced and Unsequenced Terminal Control Objects ISO/IEC ISP 11185-2:1994
  • CSA T2000.1-2025 Intelligent building systems objective-based Code (IBSC)
  • CSA ISO/IEC-11185-4-95:1995 Information Technology - International Standardized Profiles FVT2nn - Virtual Terminal Basic Class - Register of Control Object Type Definitions - Part 4: FVT217 - Horizontal Tabulation Control Object ISO/IEC ISP 11185-4:1994
  • CSA ISO/IEC-11185-7-95:1995 Information Technology - International Standardized Profiles FVT2nn - Virtual Terminal Basic Class - Register of Control Object Type Definitions - Part 7: FVT2110 - Entry-Control Control Object ISO/IEC ISP 11185-7:1994

American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)

  • ASHRAE SF-98-5-4-1998 Using Calibrated Engineering Models to Predict Energy Savings in Large-Scale Geothermal Heat Pump Projects

Magyar Szabványügyi Testület

  • MSZ 3423/1-1983 General standards for the editing structure of registration catalog titles
  • MI 1702-1969 standard number and a series of

Gosstandart of Russia

  • GOST 4.17-1980 Quality rating system. Rubber seals. Quality characteristics nomenclature
  • GOST 4.487-1988 Product-quality index system. Coordinate-measuring machines. Index nomenclature

Spanish Association for Standardization (UNE)

European Telecommunications Standards Institute (ETSI)

European Committee for Standardization (CEN)

  • EN ISP 11185-3:1995 Information Technology - International Standardized Profiles FVT2nn - Virtual Terminal Basic Class - Register of Control Object Type Definitions - Part 3: FVT215, FVT216 - Application RIO Record Loading Control Object, Terminal RIO Record Notification Ct
  • EN ISP 11185-5:1995 Information Technology - International Standardized Profiles FTV2nn - Virtual Terminal Basic Class - Register of Control Object Type Definitions - Part 5: FTV218 - Logical Image Control Object (ISO/IEC ISP 11185-5 : 1994)
  • EN ISP 11185-7:1995 Information Technology - International Standardized Profiles FVT2nn - Virtual Terminal Basic Class - Register of Control Object Type Definitions - Part 7: FVT2110 - Entry-Control Control Object (ISO/IEC ISP 11185-7 : 1994)

Defense Logistics Agency

North Atlantic Treaty Organization Standards Agency

  • STANAG 4140-2001 ADOPTION OF A STANDARD TARGET ACQUISITION METEOROLOGICAL MESSAGE

The Society for Protective Coatings (SSPC)

  • VIS 1-1989 Visual Standard for Abrasive Blast Cleaning Steel (Standard Reference Photographs)

Swedish Institute for Standards

  • SIS OVERSIKT SIS 10-1991 SIS FASTSTALLER OCH UTGER SVENSK STANDARD SAMT SAUER NATIONELLA OCH IN TE RN AT 10 N E LL A ST AN D ARDP U BLI K ATI ON ER
  • SS-ISO 10241-2:2012 Terminological entries in standards - Part 2: Adoption of standardized terminological entries (ISO 10241-2:2012, IDT)

Korean Agency for Technology and Standards (KATS)

European Cooperation for Space Standardization (ECSS)

  • P-00C-2013 Standardization objectives@ policies and organization (Second issue)

Swiss Association for Standardization (SNV)

  • SNV 81144-1946 Mineral oil products. Test standard catalog. Part 5: Cooling Oil

CN-STDBOOK

Compressed Gas Association (U.S.)

  • CGA C-6-2013 STANDARD FOR VISUAL INSPECTION OF STEEL COMPRESSED GAS CYLINDERS

Society of Automotive Engineers (SAE)

The Directorate General of Specifications and Metrology (DGSM)

Bureau of Indian Standards

  • IS 7436 Pt.1-1993 Guidelines for Structural Survey Types and Criteria for Structural Surveying and Location of Surveying Instruments in River Valley Projects Part 1 Earthdams and Rockfill Dams
  • IS 7436 Pt.2-1976 Guidelines for Structural Survey Types and Criteria for Selection and Location of Surveying Instruments for River Valley Projects Part 2 Concrete and Masonry Dams

National Association of Corrosion Engineers (NACE)

Kingdom of Bahrain Testing and Metrology Directorate

Czech Standards Institute (UNMZ)