List of International Organization for Standardization standards, 20000-21999

This is a list of published[Note 1] International Organization for Standardization (ISO) standards and other deliverables.[Note 2] For a complete and up-to-date list of all the ISO standards, see the ISO catalogue.[1]

The standards are protected by copyright and most of them must be purchased. However, about 300 of the standards produced by ISO and IEC's Joint Technical Committee 1 (JTC1) have been made freely and publicly available.[2]

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

ISO 20000 – ISO 20999
  • ISO/IEC 20000 Information technology – Service management
  • ISO/IEC TR 20002:2012 Information technology – Telecommunications and information exchange between systems – Managed P2P: Framework
  • ISO/IEC TR 20004:2015 Information technology - Security techniques - Refining software vulnerability analysis under ISO/IEC 15408 and ISO/IEC 18045
  • ISO/IEC 20005:2013 Information technology - Sensor networks - Services and interfaces supporting collaborative information processing in intelligent sensor networks
  • ISO/IEC 20006 Information technology for learning, education and training - Information model for competency
    • ISO/IEC 20006-1:2014 Part 1: Competency general framework and information model
    • ISO/IEC 20006-2:2015 Part 2: Proficiency level information model
  • ISO/IEC TR 20007:2014 Information technology - Cultural and linguistic interoperability - Definitions and relationship between symbols, icons, animated icons, pictograms, characters and glyphs
  • ISO/IEC 20008 Information technology - Security techniques - Anonymous digital signatures
    • ISO/IEC 20008-1:2013 Part 1: General
    • ISO/IEC 20008-2:2013 Part 2: Mechanisms using a group public key
  • ISO/IEC 20009 Information technology - Security techniques - Anonymous entity authentication
    • ISO/IEC 20009-1:2013 Part 1: General
    • ISO/IEC 20009-2:2013 Part 2: Mechanisms based on signatures using a group public key
    • ISO/IEC 20009-4:2017 Part 4: Mechanisms based on weak secrets
  • ISO/IEC TS 20013:2015 Information technology for learning, education and training - A reference framework of e-Portfolio information
  • ISO/IEC 20016 Information technology for learning, education and training - Language accessibility and human interface equivalencies (HIEs) in e-learning applications
    • ISO/IEC 20016-1:2014 Part 1: Framework and reference model for semantic interoperability
  • ISO/IEC TR 20017:2011 Information technology - Radio frequency identification for item management - Electromagnetic interference impact of ISO/IEC 18000 interrogator emitters on implantable pacemakers and implantable cardioverter defibrillators
  • ISO 20022 Financial services – UNIversal Financial Industry message scheme
  • ISO/TS 20026:2017 Intelligent transport systems – Cooperative ITS – Test architecture
  • ISO/IEC TS 20027:2015 Biometrics interoperability profiles – Best practices for slap tenprint captures
  • ISO/IEC 20060:2010 Information technology – Open Terminal Architecture (OTA) – Virtual machine
  • ISO/IEC 20061:2001 Information technology – 12,65 mm wide magnetic tape cassette for information interchange – Helical scan recording – DTF-2
  • ISO/IEC 20062:2001 Information technology – 8 mm wide magnetic tape cartridge for information interchange – Helical scan recording – VXA-1 format
  • ISO/PAS 20065:2016 Acoustics – Objective method for assessing the audibility of tones in noise – Engineering method
  • ISO/IEC TS 20071 Information technology – User interface component accessibility
    • ISO/IEC TS 20071-11:2012 Part 11: Guidance for alternative text for images
    • ISO/IEC TS 20071-21:2015 Part 21: Guidance on audio descriptions
    • ISO/IEC TS 20071-25:2017 Part 25: Guidance on the audio presentation of text in videos, including captions, subtitles and other on-screen text
  • ISO 20072:2009 Aerosol drug delivery device design verification—Requirements and test methods
  • ISO/IEC 20113:2004 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Specification, functional model and information flows – Make call request supplementary service
  • ISO/IEC 20114:2004 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network (PISN) – Inter-exchange signalling protocol – Make call request supplementary service
  • ISO/IEC 20115:2004 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Use of QSIG for Message Centre Access (MCA) profile standard
  • ISO/IEC 20116:2004 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Specification, functional model and information flows – Message centre monitoring and mailbox identification supplementary services
  • ISO/IEC 20117:2004 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Inter-exchange signalling protocol – Message centre monitoring and mailbox identification supplementary services
  • ISO 20121:2012 Event sustainability management systems - Requirements with guidance for use
  • ISO 20128:2006 Milk products – Enumeration of presumptive Lactobacillus acidophilus on a selective medium – Colony-count technique at 37 degrees C
  • ISO 20155:2017 Ships and marine technology - Test method of flow induced in-pipe noise source characteristics for a ship-used pump
  • ISO 20160:2006 Implants for surgery – Metallic materials – Classification of microstructures for alpha+beta titanium alloy bars
  • ISO/IEC 20161:2001 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Use of QSIG at the C reference point between a PINX and an Interconnecting Network
  • ISO/IEC 20162:2001 Information technology - Data interchange on 300 mm optical disk cartridges of type WORM (Write Once Read Many) using irreversible effects - Capacity: 30 Gbytes per cartridge
  • ISO 20228:2019 Interpreting services — Legal interpreting — Requirements
  • ISO/IEC 20243:2015 Information Technology - Open Trusted Technology ProviderTM Standard (O-TTPS) - Mitigating maliciously tainted and counterfeit products
  • ISO 20245:2017 Cross-border trade of second-hand goods
  • ISO/IEC 20246:2017 Software and systems engineering - Work product reviews
  • ISO 20252:2012 Market, opinion and social research — Vocabulary and service requirements
  • ISO 20275:2017 Financial services – Entity legal forms (ELF)
  • ISO/TR 20278:2015 Unwanted reflections from the active and inactive areas of display surfaces visible during use
  • ISO/TS 20282 Usability of consumer products and products for public use
  • ISO 20283 Mechanical vibration - Measurement of vibration on ships
    • ISO 20283-2:2008 Part 2: Measurement of structural vibration
    • ISO 20283-3:2006 Part 3: Pre-installation vibration measurement of shipboard equipment
    • ISO 20283-4:2012 Part 4: Measurement and evaluation of vibration of the ship propulsion machinery
    • ISO 20283-5:2016 Part 5: Guidelines for measurement, evaluation and reporting of vibration with regard to habitability on passenger and merchant ships
  • ISO 20301:2014 Health informatics – Health cards – General characteristics
  • ISO 20302:2014 Health informatics – Health cards – Numbering system and registration procedure for issuer identifiers
  • ISO 20308:2017 Traditional Chinese medicine – Gua Sha instruments
  • ISO 20361:2015 Liquid pumps and pump units – Noise test code – Grades 2 and 3 of accuracy
  • ISO 20381:2009 Mobile elevating work platforms - Symbols for operator controls and other displays
  • ISO 20387:2018 Biotechnology — Biobanking — General requirements for biobanking
  • ISO 20400:2017 Sustainable procurement - Guidance
  • ISO/TS 20428:2017 Health informatics – Data elements and their metadata for describing structured clinical genomic sequence information in electronic health records
  • ISO/TS 20440:2016 Health informatics – Identification of medicinal products – Implementation guide for ISO 11239 data elements and structures for the unique identification and exchange of regulated information on pharmaceutical dose forms, units of presentation, routes of administration and packaging
  • ISO/TS 20452:2007 Requirements and Logical Data Model for a Physical Storage Format (PSF) and an Application Program Interface (API) and Logical Data Organization for PSF used in Intelligent Transport Systems (ITS) Database Technology
  • ISO 20456:2017 Measurement of fluid flow in closed conduits – Guidance for the use of electromagnetic flowmeters for conductive liquids
  • ISO/TR 20461:2000 Determination of uncertainty for volume measurements made using the gravimetric method
  • ISO/TS 20477:2017 Nanotechnologies - Standard terms and their definition for cellulose nanomaterial
  • ISO 20480 Fine bubble technology – General principles for usage and measurement of fine bubbles
    • ISO 20480-1:2017 Part 1: Terminology
  • ISO 20484:2017 Non-destructive testing - Leak testing - Vocabulary
  • ISO 20488:2018 Online consumer reviews -- Principles and requirements for their collection, moderation and publication
  • ISO 20498 Traditional Chinese medicine – Computerized tongue image analysis system
    • ISO 20498-2:2017 Part 2: Light environment
  • ISO/TR 20514:2005 Health informatics – Electronic health record – Definition, scope and context
  • ISO 20519:2017 Ships and marine technology - Specification for bunkering of liquefied natural gas fuelled vessels
  • ISO/TR 20526:2017 Account-based ticketing state of the art report
  • ISO/TR 20529 Intelligent transport systems – Framework for green ITS (G-ITS) standards
    • ISO/TR 20529-1:2017 Part 1: General information and use case definitions
  • ISO 20539:2019 Translation, interpreting and related technology — Vocabulary
  • ISO/TR 20545:2017 Intelligent transport systems – Vehicle/roadway warning and control systems – Report on standardisation for vehicle automated driving systems (RoVAS)/Beyond driver assistance systems
  • ISO/IEC 20563:2001 Information technology - 80 mm (1,23 Gbytes per side) and 120 mm (3,95 Gbytes per side) DVD-recordable disk (DVD-R)
  • ISO/TS 20625:2002 Electronic data interchange for administration, commerce and transport (EDIFACT) – Rules for generation of XML scheme files (XSD) on the basis of EDI(FACT) implementation guidelines
  • ISO/IEC 20648:2016 Information technology - TLS specification for storage systems
  • ISO 20653 Road vehicles - Degrees of protection (IP-Code) - Protection of electrical equipment against foreign objects, water and access
  • ISO 20669:2017 Non-destructive testing - Pulsed eddy current testing of ferromagnetic metallic components
  • ISO 20671:2019 Brand evaluation -- Principles and fundamentals
  • ISO 20700 Guidelines for management consultancy services
  • ISO 20712 Water safety signs and beach safety flags
    • ISO 20712-1:2008 Part 1: Specifications for water safety signs used in workplaces and public areas
    • ISO 20712-2:2007 Part 2: Specifications for beach safety flags - Colour, shape, meaning and performance
    • ISO 20712-3:2014 Part 3: Guidance for use
  • ISO 20725:2004 Textile machinery – Condensers for cotton spinning – Vocabulary and principles of construction
  • ISO 20726:2004 Textile machinery – Hopper feeders for cotton spinning – Vocabulary and principles of construction
  • ISO 20727:2004 Textile machinery – Mixing bale openers for cotton spinning – Vocabulary and principles of construction
  • ISO/IEC 20741:2017 Systems and software engineering - Guideline for the evaluation and selection of software engineering tools
  • ISO 20743:2013 Textiles – Determination of antibacterial activity of textile products
  • ISO/IEC TR 20748 Information technology for learning, education and training - Learning analytics interoperability
    • ISO/IEC TR 20748-1:2016 Part 1: Reference model
    • ISO/IEC TR 20748-2:2017 Part 2: System requirements
  • ISO 20771:2020 Legal translation — Requirements
  • ISO 20775:2009 Information and documentation - Schema for holdings information
  • ISO 20785 Dosimetry for exposures to cosmic radiation in civilian aircraft
    • ISO 20785-1:2012 Part 1: Conceptual basis for measurements
    • ISO 20785-2:2011 Part 2: Characterization of instrument response
    • ISO 20785-3:2015 Part 3: Measurements at aviation altitudes
  • ISO/IEC 20802 Information technology – Open data protocol (OData) v4.0
    • ISO/IEC 20802-1:2016 Part 1: Core
    • ISO/IEC 20802-2:2016 Part 2: OData JSON Format
  • ISO 20807:2004 Non-destructive testing – Qualification of personnel for limited application of non-destructive testing
  • ISO/TR 20811:2017 Optics and photonics – Lasers and laser-related equipment – Laser-induced molecular contamination testing
  • ISO 20815 Petroleum, petrochemical and natural gas industries - Production assurance and reliability management
  • ISO 20816 Mechanical vibration – Measurement and evaluation of machine vibration
    • ISO 20816-1:2016 Part 1: General guidelines
    • ISO 20816-2:2017 Part 2: Land-based gas turbines, steam turbines and generators in excess of 40 MW, with fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min and 3 600 r/min
  • ISO/TR 20824:2007 Ophthalmic instruments – Background for light hazard specification in ophthalmic instrument standards
  • ISO/TR 20831:2017 Health informatics – Medication management concepts and definitions
  • ISO/TS 20836:2005 Microbiology of food and animal feeding stuffs – Polymerase chain reaction (PCR) for the detection of food-borne pathogens – Performance testing for thermal cyclers
  • ISO 20837:2006 Microbiology of food and animal feeding stuffs – Polymerase chain reaction (PCR) for the detection of food-borne pathogens – Requirements for sample preparation for qualitative detection
  • ISO 20838:2006 Microbiology of food and animal feeding stuffs – Polymerase chain reaction (PCR) for the detection of food-borne pathogens – Requirements for amplification and detection for qualitative methods
  • ISO 20900:2019 ISO 20900:2019 Intelligent transport systems — Partially automated parking systems (PAPS) — Performance requirements and test procedures
  • ISO 20906:2009 Acoustics – Unattended monitoring of aircraft sound in the vicinity of airports
  • ISO/IEC TR 20913:2016 Information technology - Data centres - Guidelines on holistic investigation methodology for data centre key performance indicators
  • ISO 20916:2019 In vitro diagnostic medical devices -- Clinical performance studies using specimens from human subjects -- Good study practice
  • ISO/IEC 20919:2016 Information technology – Linear Tape File System (LTFS) Format Specification
  • ISO/IEC 20922:2016 Information technology – Message Queuing Telemetry Transport (MQTT) v3.1.1
  • ISO/IEC 20926:2009 Software and systems engineering - Software measurement - IFPUG functional size measurement method 2009
  • ISO/IEC 20933:2016 Information technology - Distributed Application Platforms and Services (DAPS) - Access Systems
  • ISO/IEC TR 20943 Information technology – Procedures for achieving metadata registry content consistency
    • ISO/IEC TR 20943-1:2003 Part 1: Data elements
    • ISO/IEC TR 20943-3:2004 Part 3: Value domains
    • ISO/IEC TR 20943-5:2013 Part 5: Metadata mapping procedure
    • ISO/IEC TR 20943-6:2013 Part 6: Framework for generating ontologies
  • ISO/IEC 20944 Information technology - Metadata Registries Interoperability and Bindings (MDR-IB)
    • ISO/IEC 20944-1:2013 Part 1: Framework, common vocabulary, and common provisions for conformance
    • ISO/IEC 20944-2:2013 Part 2: Coding bindings
    • ISO/IEC 20944-3:2013 Part 3: API bindings
    • ISO/IEC 20944-4:2013 Part 4: Protocol bindings
    • ISO/IEC 20944-5:2013 Part 5: Profiles
  • ISO 20957 Stationary training equipment — Safety requirements and test methods
    • ISO 20957-1:2013 Stationary training equipment — Part 1: General safety requirements and test methods
    • ISO 20957-2:2005 Stationary training equipment — Part 2: Strength training equipment, additional specific safety requirements and test methods
    • ISO 20957-4:2016 Stationary training equipment — Part 4: Strength training benches, additional specific safety requirements and test methods
    • ISO 20957-5:2016 Stationary training equipment — Part 5: Stationary exercise bicycles and upper body crank training equipment, additional specific safety requirements and test methods
    • ISO 20957-6:2005 Stationary training equipment — Part 6: Treadmills, additional specific safety requirements and test methods
    • ISO 20957-7:2005 Stationary training equipment — Part 7: Rowing machines, additional specific safety requirements and test methods
    • ISO 20957-8:2017 Stationary training equipment — Part 8: Steppers, stairclimbers and climbers — Additional specific safety requirements and test methods
    • ISO 20957-9:2016 Stationary training equipment — Part 9: Elliptical trainers, additional specific safety requirements and test methods
    • ISO 20957-10:2017 Stationary training equipment — Part 10: Exercise bicycles with a fixed wheel or without freewheel
  • ISO 20958:2013 Condition monitoring and diagnostics of machine systems – Electrical signature analysis of three-phase induction motors
  • ISO/IEC 20968:2002 Software engineering - Mk II Function Point Analysis - Counting Practices Manual
  • ISO/IEC 20970:2002 Information technology - Programming languages, their environments and system software interfaces - JEFF file format

ISO 21000 – ISO 21999
  • ISO/IEC 21000 Information technology – Multimedia framework (MPEG-21)
  • ISO 21001:2018 Educational organizations - Management systems for educational organizations - Requirements with guidance for use (EOMS)
  • ISO 21047:2009 Information and documentation - International Standard Text Code (ISTC)
  • ISO 21063:2017 Prosthetics and orthotics – Soft orthoses – Uses, functions, classification and description
  • ISO 21064:2017 Prosthetics and orthotics – Foot orthotics – Uses, functions classification and description
  • ISO 21065:2017 Prosthetics and orthotics – Terms relating to the treatment and rehabilitation of persons having a lower limb amputation
  • ISO 21067 Packaging - Vocabulary
    • ISO 21067-1:2016 Part 1: General terms
    • ISO 21067-2:2015 Part 2: Packaging and the environment terms
  • ISO/TR 21074:2016 Application of ISO 5725 for the determination of repeatability and reproducibility of precision tests performed in standardization work for chemical analysis of steel
  • ISO/TR 21089:2004 Health informatics – Trusted end-to-end information flows
  • ISO 21090:2011 Health informatics – Harmonized data types for information interchange
  • ISO 21091:2013 Health informatics – Directory services for healthcare providers, subjects of care and other entities
  • ISO 21101:2014 Adventure tourism – Safety management systems – Requirements
  • ISO/TR 21102:2013 Adventure tourism – Leaders – Personnel competence
  • ISO 21103:2014 Adventure tourism – Information for participants
  • ISO/IEC 21118:2012 Information technology – Office equipment – Information to be included in specification sheets – Data projectors
  • ISO 21127:2014 Information and documentation - A reference ontology for the interchange of cultural heritage information
  • ISO/TS 21144:2016 Ergonomics of human-system interaction – Electronic paper display – Indoor use
  • ISO 21148:2017 Cosmetics – Microbiology – General instructions for microbiological examination
  • ISO 21149:2017 Cosmetics – Microbiology – Enumeration and detection of aerobic mesophilic bacteria
  • ISO 21150:2015 Cosmetics – Microbiology – Detection of Escherichia coli
  • ISO 21183 Light conveyor belts
    • ISO 21183-2:2005 Part 2: List of equivalent terms
  • ISO 21187:2004 Milk – Quantitative determination of bacteriological quality – Guidance for establishing and verifying a conversion relationship between routine method results and anchor method results
  • ISO 21188:2006 Public key infrastructure for financial services – Practices and policy framework
  • ISO 21210:2012 Intelligent transport systems – Communications access for land mobiles (CALM) – IPv6 Networking
  • ISO 21212:2008 Intelligent transport systems – Communications access for land mobiles (CALM) – 2G Cellular systems
  • ISO 21213:2008 Intelligent transport systems – Communications access for land mobiles (CALM) – 3G Cellular systems
  • ISO 21214:2015 Intelligent transport systems – Communications access for land mobiles (CALM) – Infra-red systems
  • ISO 21215:2010 Intelligent transport systems – Communications access for land mobiles (CALM) – M5
  • ISO 21216:2012 Intelligent transport systems – Communication access for land mobiles (CALM) – Millimetre wave air interface
  • ISO 21217:2014 Intelligent transport systems – Communications access for land mobiles (CALM) – Architecture
  • ISO 21218:2013 Intelligent transport systems – Communications access for land mobiles (CALM) – Access technology support
  • ISO/TS 21219 Intelligent transport systems – Traffic and travel information (TTI) via transport protocol experts group, generation 2 (TPEG2)
  • ISO 21247:2005 Combined accept-zero sampling systems and process control procedures for product acceptance
  • ISO 21254 Lasers and laser-related equipment – Test methods for laser-induced damage threshold
    • ISO 21254-1:2011 Part 1: Definitions and general principles
    • ISO 21254-2:2011 Part 2: Threshold determination
    • ISO 21254-3:2011 Part 3: Assurance of laser power (energy) handling capabilities
    • ISO/TR 21254-4:2011 Part 4: Inspection, detection and measurement
  • ISO 21289:2008 Mechanical vibration and shock – Parameters to be specified for the acquisition of vibration data
  • ISO 21298:2017 Health informatics - Functional and structural roles
  • ISO/IEC 21320 Information technology - Document Container File
  • ISO 21300:2019 Traditional Chinese medicine — Guidelines and specification for Chinese materia medica
  • ISO/IEC 21320-1:2015 Part 1: Core
  • ISO 21401:2018 Tourism and related services -- Sustainability management system for accommodation establishments -- Requirements
  • ISO/IEC 21407:2001 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Specification, functional model and information flows – Simple dialog supplementary service
  • ISO/IEC 21408:2003 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Inter-exchange signalling protocol – Simple dialog supplementary service
  • ISO/IEC 21409:2001 Information technology – Telecommunications and information exchange between systems – Corporate telecommunication networks – Signalling interworking between QSIG and H.323 – Generic functional protocol for the support of supplementary services
  • ISO/IEC 21410:2001 Information technology – Telecommunications and information exchange between systems – Corporate telecommunication networks – Signalling interworking between QSIG and H.323 – Call transfer supplementary services
  • ISO/IEC 21411:2001 Information technology – Telecommunications and information exchange between systems – Corporate telecommunication networks – Signalling interworking between QSIG and H.323 – Call diversion supplementary services
  • ISO 21413:2005 Manual methods for the measurement of a groundwater level in a well
  • ISO/TR 21414:2016 Hydrometry – Groundwater – Surface geophysical surveys for hydrogeological purposes
  • ISO/IEC TS 21425:2017 Programming languages – C++ Extensions for ranges
  • ISO 21439:2009 Clinical dosimetry - Beta radiation sources for brachytherapy
  • ISO/IEC/IEEE 21450:2010 Information technology - Smart transducer interface for sensors and actuators - Common functions, communication protocols, and Transducer Electronic Data Sheet (TEDS) formats
  • ISO/IEC/IEEE 21451 Information technology - Smart transducer interface for sensors and actuators
    • ISO/IEC/IEEE 21451-1:2010 Part 1: Network Capable Application Processor (NCAP) information model
    • ISO/IEC/IEEE 21451-2:2010 Part 2: Transducer to microprocessor communication protocols and Transducer Electronic Data Sheet (TEDS) formats
    • ISO/IEC/IEEE 21451-4:2010 Part 4: Mixed-mode communication protocols and Transducer Electronic Data Sheet (TEDS) formats
    • ISO/IEC/IEEE 21451-7:2011 Part 7: Transducer to radio frequency identification (RFID) systems communication protocols and Transducer Electronic Data Sheet (TEDS) formats
  • ISO/IEC 21481:2012 Information technology – Telecommunications and information exchange between systems – Near Field Communication Interface and Protocol -2 (NFCIP-2)
  • ISO 21482:2007 Ionizing-radiation warning – Supplementary symbol
  • ISO 21484:2017 Nuclear Energy - Fuel technology - Determination of the O/M ratio in MOX pellets by the gravimetric method
  • ISO 21485:2013 Textile machinery – Draw frame for cotton spinning – Vocabulary and principles of construction
  • ISO 21500 Guidance on project management
  • ISO 21503:2017 Project, programme and portfolio management – Guidance on programme management
  • ISO 21504:2015 Project, programme and portfolio management – Guidance on portfolio management
  • ISO 21505:2017 Project, programme and portfolio management - Guidance on governance
  • ISO 21527 Microbiology of food and animal feeding stuffs – Horizontal method for the enumeration of yeasts and moulds
    • ISO 21527-1:2008 Part 1: Colony count technique in products with water activity greater than 0,95
    • ISO 21527-2:2008 Part 2: Colony count technique in products with water activity less than or equal to 0,95
  • ISO 21528 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae
    • ISO 21528-1:2017 Part 1: Detection of Enterobacteriaceae
    • ISO 21528-2:2017 Part 2: Colony-count technique
  • ISO 21531:2009 Dentistry - Graphical symbols for dental instruments
  • ISO 21534:2007 Non-active surgical implants – Joint replacement implants – Particular requirements
  • ISO 21535:2007 Non-active surgical implants – Joint replacement implants – Specific requirements for hip-joint replacement implants
  • ISO 21536:2007 Non-active surgical implants – Joint replacement implants – Specific requirements for knee-joint replacement implants
  • ISO/IEC TS 21544:2018 Programming languages – Extensions to C++ for modules
  • ISO/TS 21547:2010 Health informatics – Security requirements for archiving of electronic health records – Principles
  • ISO/TR 21548:2010 Health informatics – Security requirements for archiving of electronic health records – Guidelines
  • ISO 21549 Health informatics – Patient healthcard data
    • ISO 21549-1:2013 Part 1: General structure
    • ISO 21549-2:2014 Part 2: Common objects
    • ISO 21549-3:2014 Part 3: Limited clinical data
    • ISO 21549-4:2014 Part 4: Extended clinical data
    • ISO 21549-5:2015 Part 5: Identification data
    • ISO 21549-6:2008 Part 6: Administrative data
    • ISO 21549-7:2016 Part 7: Medication data
    • ISO 21549-8:2010 Part 8: Links
  • ISO 21567:2004 Microbiology of food and animal feeding stuffs – Horizontal method for the detection of Shigella spp.
  • ISO/TS 21609:2014 Road vehicles – (EMC) guidelines for installation of aftermarket radio frequency transmitting equipment
  • ISO 21649:2006 Needle-free injectors for medical use – Requirements and test methods
  • ISO 21667:2010 Health informatics – Health indicators conceptual framework
  • ISO/TR 21707:2008 Intelligent transport systems – Integrated transport information, management and control – Data quality in ITS systems
  • ISO/TR 21730:2007 Health informatics – Use of mobile wireless communication and computing technology in healthcare facilities – Recommendations for electromagnetic compatibility (management of unintentional electromagnetic interference) with medical devices
  • ISO/HL7 21731:2014 Health informatics – HL7 version 3 – Reference information model – Release 4
  • ISO 21748:2017 Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty evaluation
  • ISO/TS 21749:2005 Measurement uncertainty for metrological applications - Repeated measurements and nested experiments
  • ISO 21807:2004 Microbiology of food and animal feeding stuffs – Determination of water activity
  • ISO/IEC 21827:2008 Information technology - Security techniques - Systems Security Engineering - Capability Maturity Model® (SSE-CMM®)
  • ISO 21849:2006 Aircraft and space - Industrial data - Product identification and traceability
  • ISO 21871:2006 Microbiology of food and animal feeding stuffs – Horizontal method for the determination of low numbers of presumptive Bacillus cereus – Most probable number technique and detection method
  • ISO 21872 Microbiology of the food chain – Horizontal method for the determination of Vibrio spp.
  • ISO/IEC 21888:2001 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Specification, functional model and information flows – Call Identification and Call Linkage Additional Network Feature
  • ISO/IEC 21889:2001 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Inter-exchange signalling protocol – Call Identification and Call Linkage Additional Network Feature
  • ISO/IEC TR 21890:2001 Information technology – Telecommunications and information exchange between systems – Interoperation of PISNs with IP networks
  • ISO/TR 21932:2013 Sustainability in buildings and civil engineering works – A review of terminology
  • ISO 21940 Mechanical vibration - Rotor balancing
    • ISO 21940-2:2017 Part 2: Vocabulary
  • ISO/TR 21941:2017 Financial services – Third-party payment service providers
  • ISO 21969:2009 High-pressure flexible connections for use with medical gas systems
  • ISO 21987:2017 Ophthalmic optics – Mounted spectacle lenses
  • ISO/IEC 21989:2002 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Specification, functional model and information flows – Short message service
  • ISO/IEC 21990:2002 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Inter-exchange signalling protocol – Short message service
  • ISO/IEC 21991:2002 Information technology – Telecommunications and information exchange between systems – Corporate Telecommunication Networks – Signalling interworking between QSIG and H.323 – Call completion supplementary services
  • ISO/IEC 21992:2003 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Mapping functions for the tunnelling of QSIG through IP networks
  • ISO 21998:2020 Interpreting services — Healthcare interpreting — Requirements and recommendations

Notes
  1. This list generally excludes draft versions.
  2. ISO deliverables include "specifications" (ISO/PAS, ISO/TS), "reports" (ISO/TR), etc, which are not referred to by ISO as "standards".

References
  1. "Standards catalogue". ISO.
  2. "Freely Available Standards". ISO.
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