ISO - International Organization for Standardization

This standard gives guidance on establishing a decision-making framework for sharing data and information services in smart cities. It covers: a) types of data in smart cities; b) establishing a data sharing culture; c) data value chain – roles and responsibilities; d) purposes for data use; e) assessing data states; f) defining access rights for data; and g) data formats/format of transportation. This standard aims to support the sharing of data and information services within cities. For some cities there will also be a need to establish specific data sharing agreements, particularly where data is being shared by multiple organizations at once. This standard supports a transparent approach to making decisions and creating specific data sharing agreements in order to fully realise the benefits and value of data and information services in a city. Missing data or misinterpretation of data can lead to the wrong actions being taken by city decision-makers. A decision-making framework for sharing data can help ensure that they have the best overall data on which to base decisions. This standard does not cover: a) national security issues; b) good practice for use of data by the citizen; c) existing interoperability agreements between cities; d) defining application programming interfaces (API) networks; or e) any data sharing rules and regulations specific to a particular jurisdiction. It is assumed that a security-minded approach to data sharing is used by cities. NOTE 1 Further details on the areas not covered in this standard, including information on relevant standards publications, are given in Annex A. This standard is for use by decision-makers in smart cities from the public, private and third sectors. It is also of interest to any city organization wishing to share data.

This document applies to the design, testing, and operation of pre-engineered fire extinguishing systems that protect galley hoods, ducts, fryers and other grease-laden cooking equipment. This document provides requirements for the construction and performance of components within pre-engineered fire-extinguishing system units. This document also provides minimum requirements for the testing and evaluation of components. A product that contains features, characteristics, components, materials or systems that are new or different from those covered by the requirements in this document and that involve a risk of fire, electric shock, or injury to persons, can be evaluated using the appropriate additional component and end product testing.

This document specifies safety information for overground piping systems related to the content of the piping system and associated hazards for the purposes of accident prevention, reducing risks to health and providing information for use in case of an emergency. This document does not cover piping that is buried. Safety signing of the hazards in an area is not part of this document. This document does not cover risk assessment. This document can also be used for marine structures and ships.

This document specifies methods for determining side lengths, straightness of edges and squareness of square and/or rectangular resilient or textile floor tiles and planks.

This document specifies the design, minimum safety requirements, and inspection and testing procedures for liquefied hydrogen (LH2) marine transfer arms intended for use at onshore LH2 terminals handling LH2 carriers. It also covers the minimum requirements for safe LH2 transfer between ship and shore. Although the requirements for power/control systems are covered, this document does not include all of the details for the design and fabrication of standard parts and fittings associated with transfer arms. This document is mainly focused on hard pipe type transfer systems; hose type transfer systems are not described in detail in the general description of this document. However, hose type transfer systems can also be considered as reasonable vacuum insulated technology for the design of transfer arms for liquefied hydrogen.

This document specifies a method for determining the fire resistance of vertical and horizontal ventilation ducts under standardized fire conditions. The test examines the behaviour of ducts exposed to fire from the outside (duct A) and fire inside the duct (duct B). This document is intended to be used in conjunction with ISO 834-1. This document is not applicable to: a) ducts whose fire resistance depends on the fire resistance performance of a ceiling; b) ducts containing fire dampers at points where they pass through fire separations; c) doors of inspection openings, unless included in the duct to be tested; d) two-sided or three-sided ducts; e) the fixing of suspension devices to floors or walls; f) kitchen extract ducts (see ISO 6944-2). NOTE Annex A provides general guidance and gives background information.

This document specifies a mechanism for exchanging data and messages in the following cases: a) exchange between a traffic management centre and ITS roadside equipment for traffic management; b) exchange between ITS roadside equipment used for traffic management. This document is not applicable to: — communication between traffic management centres and in-vehicle units; — communication between ITS roadside equipment and in-vehicle units; — in-vehicle communication; — in-cabinet communication; — motion video transmission from a camera or recorded media. This document is suitable for use when both of the following conditions apply: 1) The data to be exchanged can be defined as one or more elements that can be retrieved or stored – SNMP can support a wide variety of devices and has adopted the concept of a management information base (MIB), which identifies the configuration, control and monitoring parameters for ITS roadside equipment. This standardized approach is commonly used for network management applications for devices such as routers, switches, bridges and firewalls. It is also used in many regions to control devices such as dynamic message signs. 2) Guaranteed, deterministic, real-time exchange of data is not critical – SNMP operations typically require less than 100 ms, but the underlying network can cause multi-second delays in delivering messages or even lost messages; thus, SNMP is not intended for applications that require reliable sub-second communications. This document can be used for: — intermittent exchange of any defined data (normal SNMP operations allow messages to be structured by combining any group of elements into a retrieval or storage request); — repeated, frequent exchanges of the same message structure (with potentially different values), even on relatively low-bandwidth links; NOTE 1 The dynamic object feature, defined in ISO/TS 26048-1, can be used to eliminate a considerable amount of overhead that is normally associated with SNMP communications to make it more suitable for low-bandwidth links. — allowing ITS roadside equipment to issue exception reports when special conditions arise. NOTE 2 Exception reporting uses SNMP notifications in combination with the notification management features defined in ISO/TS 26048-1.

This document gives guidelines and requirements for the procedures to be followed when carrying out vibration diagnostics of 2‑ and 4‑pole electrical generators of cylindrical pole design with fluid-film bearings. This document does not apply to salient pole generators. This document establishes a practical step-by-step vibration-based approach to fault diagnosis. The requirements of this document should be considered together with those in ISO 13373-4.

This document specifies general requirements and gives guidance on microbiological examinations. It is applicable to: — the implementation of specific horizontal or vertical International Standards developed by ISO/TC 34/SC 9 or ISO/TC 34/SC 5 for detection or enumeration of microorganisms, named hereafter “specific standards”; — good laboratory practices for microbiology laboratories testing samples from the food chain; — guidance for microbiological laboratories testing samples from the food chain on the technical requirements for conforming to ISO/IEC 17025. The requirements of this general standard supersede corresponding ones in existing specific standards. Additional instructions for examinations using the polymerase chain reaction (PCR) are specified in ISO 22174. This document is applicable to examinations for bacteria, yeasts and moulds and can be used, if supplemented with specific guidance, for parasites and viruses. It does not apply to examinations for toxins or other metabolites (e.g. amines) from microorganisms. This document is applicable to microbiology of the food chain, from primary production stage to food and animal feed products, including the premises where the food or feed production and handling takes place. It is also applicable to the microbiological examination of water where water is used in food production or is regarded as a food in national legislation.

This document defines chalcogenide glass correctly from a chemical perspective and specifies basic characterization and reporting of optical properties of chalcogenide glass used in the infrared spectral range from 0,78 um to 25 um

This document provides guidelines to analyse security and privacy risks and identifies controls that can be implemented in Internet of Things (IoT)-domotics systems.

This document specifies the general service framework and components for operating automated driving buses (ADBs) in public transport networks. It includes: a) a description of the ADB service components which consist of ADBs, the monitoring and control (MC) centre, Internet of Things (IoT) infrastructure, the smart bus stations and the passengers. b) a description of the use cases for the ADB service operation.

This document provides guidance for a more flexible implementation of ISO 37101. This can be appropriate for smaller urban settlements or those dominated by a specialised function. Others can be starting on their journey of maturing sustainability from a very low-level base, or aim to explore sustainable development in a gradual, phased way due to limited resources. Some will want to rapidly initiate action that will have an immediate impact to demonstrate value and stimulate wider support. It provides practical toolkits to achieve implementation (e.g. policies and economic incentives, technical tools, and self-assessment checklists). This document applies to urban settlements of any composition and type.

This document provides guidelines and specifies requirements for estimating the precision of rubber test methods by means of interlaboratory test programmes based on the procedures given in: — Method A using ISO 5725-1, ISO 5725-2 and ISO 5725-3; — Method B using ASTM D4483.

This document specifies stateful digital signature mechanisms with appendix, where the level of security is determined by the security properties of the underlying hash function. This document also provides requirements for implementing basic state management, which is needed for the secure deployment of the stateful schemes described in this document.

This document provides a broad societal context for facility management (FM) to inspire organizations that wish to: — establish and improve a sustainable integrated FM system; — embrace the wide-ranging and positive contribution that FM makes in managing the built environment; — support the United Nations (UN) Sustainable Development Goals (SDGs). This document provides a non-exhaustive contextual introduction to relevant concepts, initiatives and terms that are in common use. It is acknowledged that the practice of FM internationally is dynamic and diverse, hence this document provides generic information based on current experience without setting out any specific requirements, recommendations or permissions. Organizations are encouraged to make their own enquiries as to the extent this document is applicable to their circumstances.

This document contains internationally accepted descriptions of the main phenomena of space weather, including its sources and effects upon space systems. This document is applicable for a variety of engineering and scientific domains. It is applicable to space system operations include ground-based, on-orbit, and deep space automated satellite operations. It can be applied by developers of software systems for space systems, designers of space systems, and launchers of space systems.

This document specifies a method for the determination of the mass concentration of particulate arsenic and arsenic compounds in workplace air sampled on a filter (e. g. 37 mm cellulose nitrate filter), digested with acid or an acid mixture and analysed quantitively by using electrothermal atomic absorption spectrometry (ET-AAS). The method is not suitable for determination of arsenic in the form of metal arsenides, which decompose in the presence of water or acid, or for arsenic trioxide vapour. Many different types of sampling apparatus are used to collect respirable or inhalable dust, according to the occupational hygiene convention. This document is designed to accommodate the variety of samplers and collection substrates available to analysts. This document is intended to be used in conjunction with ISO 21832 which promotes best practices for these analyses. The method is applicable to the determination of masses of approximately 0,2 µg to 2 μg of arsenic per sample, for analysis of test solutions prepared using sample solution aliquots in the recommended range (see 10.1.3 and 10.1.4.1). The concentration range for arsenic in air, for which this procedure is applicable, is determined in part by the sampling procedure selected by the user. The method is applicable to personal and stationary air sampling. A number of transition metals can interfere with the determination of arsenic by electrothermal atomic absorption spectrometry (see 11.3).

This document provides guidance on identifying and assessing the impacts of climate change on stormwater systems and on developing strategies for adapting to these impacts. The assessment of the impacts is based on the assessment principles described in ISO 24566-1. This document also provides examples of some of the impacts of climate change on stormwater systems and of the responses that have been implemented by municipal water services or by the relevant jurisdiction (e.g. municipality or region served by the service). The examples of responses illustrate adaptation strategies that have been applied. NOTE Combined sewer systems are included in this document in relation to the activities of collection, transport, storage and treatment of stormwater. Non-combined wastewater systems are covered by ISO 24566-4.

This document describes index tests for determining the strength of the internal structural junctions under different loading conditions of all geocomposites and of clay geosynthetic barriers.

This document provides guidelines to evaluate the benefits of reclaimed water for applications requiring different levels of water quality and for beneficial use in urban areas. This document is applicable, among others, by practitioners and authorities to assist water reuse planning, design, operation and management. This document provides evaluation indicators, procedures and examples of reclaimed water use benefits. Design parameters and regulatory values of different reclaimed water uses as well as risk or safety evaluation of reclaimed water use are out of scope of this document.

Field devices are a key component in intelligent transport systems (ITS). Field devices include traffic signals, message signs, weather stations, traffic sensors, roadside equipment for connected ITS (C-ITS) environments, etc. Field devices often need to exchange information with central devices (managers). Field devices can be quite complex necessitating the standardization of many data concepts for exchange. As such, the ISO 22741 series is divided into several individual parts. This document identifies basic user needs for the management of virtually any field device and traces these needs to interoperable designs. This includes the ability to identify the device, its capabilities and its status. ISO 22741-1 provides additional details about how the ISO 22741 series relates to the overall ITS architecture.

This document specifies concepts and principles to establish a methodology for specifying level of information need and information deliveries in a consistent way when using building information modelling (BIM). This document specifies the characteristics of different levels used for defining the detail and extent of information required to be exchanged and delivered throughout the life cycle of built assets. It gives guidelines for principles required to specify information needs. The concepts and principles in this document can be applied for a general information exchange and while in progress, for a generally agreed way of information exchange between parties in a collaborative work process, as well as for an appointment with specified information delivery. This document is applicable to the whole life cycle of any built asset, including strategic planning, initial design, engineering, development, documentation and construction, day-to-day operation, maintenance, refurbishment, repair and end-of-life.

This document specifies the applicable requirements related to the design and the operation of confinement and ventilation systems for fusion facilities for tritium fuels and tritium fuel handling facilities specific for fusion applications for peaceful purposes using high tritium inventories, as well as for their specialized buildings such as hot cells, examination laboratories, emergency management centres, radioactive waste treatment and storage facilities. In most countries, a tritium quantity is declared as high for tritium inventories higher than a range of 10 g to 100 g. In the tritium fusion facilities in the scope of this document, the tritium inventory is deemed to be higher than this range for the whole site. This document applies especially to confinement and ventilation systems that ensure the safety function of nuclear facilities involved in nuclear fusion with the goal to protect the workers, the public and the environment from the dissemination of radioactive contamination originating from the operation of these installations, and in particular from airborne tritium contamination with adequate confinement systems. The types of confinement systems for other facilities are covered by ISO 26802 for fission nuclear reactors, by ISO 17873 for facilities other than fission nuclear reactors and by ISO 16647 for nuclear worksite and for nuclear installations under decommissioning. The facilities covered by these three standards, notably ISO 17873, include tritium as a radioactive material among the ones to be confined, but tritium is not their driver of the risks for workers and for members of the public. Nevertheless, the tritium quantities and risks from fusion facilities create specificities for a specific standard (e.g. in fusion facilities, tritium is the driver of routine and accident consequences). Therefore, the scope of this document does not cover the other facilities involved in tritium releases (ISO 17873, ISO 16647 and ISO 26802), even though these other facilities create tritium releases (e.g. non-reactor fission facilities, tritium laboratories, tritium removal facilities from fission plants, tritium defence facilities).

This document specifies requirements for non-alloy and alloy steels that are intended for cold heading or cold extruding and are delivered as wire rods, wire or bars. It also lists the specific requirements for: — steels not intended for heat treatment, with diameters from 2 mm to 100 mm (see Annex A); — case-hardening steels with diameters from 2 mm to 100 mm (see Annex B); — steels for quenching and tempering, including boron-alloyed steels, with diameters from 2 mm to 100 mm (see Annex C). This document (except Annex A) also applies to the properties of cold-headed or cold-extruded parts which have been subjected to a subsequent heat treatment. NOTE Stainless steels for cold heading and cold extruding are covered by ISO 4954-2.

This document establishes principles for the use of colour characterization data as the definition of the intended relationship between input data and printed colour for file preparation, job assembly, proofing, and graphic arts production printing. It specifies the procedure used to adjust colour characterization data for the normally expected range of substrate colour.

This document gives guidance on the selection and application of tools that can be used in a quality management system to: a) characterize a process or a variable; b) facilitate problem solving; c) highlight areas for improvement; d) improve effectiveness.

This document specifies requirements for conformity assessment bodies (CABs) performing certification of new lifts (elevators), model lifts, lift components and lift functions. NOTE Hereinafter in this document, the term “lift” is used instead of the term “elevator”.

This document specifies a test method for determining the compressive strength of a sample fixed into an S-shape in the machine direction. This document is applicable to papers with a grammage of 80 g/m2 to 220 g/m2; different grammages can lead to unreliable results.

This document specifies prerequisite requirements for application for the certification of new lifts (elevators), model lifts, lift components and lift functions. NOTE Hereinafter in this document, the term “lift” is used instead of the term “elevator”.

This document specifies requirements for stainless steels that are intended for cold heading or cold extruding and are delivered as wire rods, wire or bars. It lists specific requirements for steels with diameters of 0,8 mm up to 50 mm for austenitic steels, up to 25 mm for ferritic steels and up to 100 mm for martensitic steels. This document is applicable to the properties of cold-headed or cold-extruded parts which have been subjected to a subsequent heat treatment. NOTE Non-alloy and alloy steels for cold heading and cold extruding are covered by ISO 4954-1.

This document specifies the characteristics of slotted set screws with cone point, in steel and stainless steel, with metric coarse pitch threads M1,2 to M12, and with product grade A. If in certain cases other specifications are requested, hardness classes and stainless steel grades can be selected from ISO 898-5 or ISO 3506-3, and dimensional options from ISO 888, ISO 965-1 or ISO 4753.

This document specifies the characteristics of slotted set screws with long dog point for regular standard lengths and with short dog point for short standard lengths, in steel and stainless steel, with metric coarse pitch threads M1,6 to M12 and with product grade A. If in certain cases other specifications are requested, hardness classes and stainless steel grades can be selected from ISO 898-5 or ISO 3506-3, and dimensional options from ISO 888, ISO 965-1 or ISO 4753.

This document specifies the characteristics of slotted set screws with cup point, in steel and stainless steel, with metric coarse pitch threads M1,6 to M12 and with product grade A. If in certain cases other specifications are requested, hardness classes and stainless steel grades can be selected from ISO 898-5, or ISO 3506-3, and dimensional options from ISO 888, ISO 965-1 or ISO 4753.

This document specifies minimum safety requirements and test methods for protective clothing including hoods, aprons, sleeves, and gaiters that are designed to protect the wearer's body including head (hoods) and feet (gaiters) and that are to be worn during welding and allied processes with comparable risks. For the protection of the wearer’s head and feet, this document is only applicable to hoods and gaiters. This document does not cover requirements for feet, hand, face, and/or eye protectors. This type of protective clothing is intended to protect the wearer against the following hazards: — spatter (small splashes of molten metal) in 2 risk levels, short contact time with flame, radiant heat from an electric arc used for welding and allied processes, — harmful artificial optical radiation (UV-A, UV-B and especially UV-C) in 3 risk levels generated during welding and allied processes and — minimizes the possibility of electrical shock by short-term, accidental contact with live electrical conductors at voltages up to approximately 100 V d. c. in normal conditions of welding. Sweat, soiling, or other contaminants can affect the level of protection provided against short-term accidental contact with live electric conductors at these voltages. The main manual welding processes are exemplified and are classified into process groups according to the maximum effectively emitted total irradiance, which has been determined and evaluated by measurement for these types of welding processes. For adequate overall protection against the risks to which welders are likely to be exposed, personal protective equipment (PPE) covered by other standards should additionally be worn to protect the head, face, hands, and feet. This document is not applicable for laser welding processes (coherent, monochromatic radiation sources). Guidance for the selection of protective clothing for different welding activities is detailed in Annex B.

This document specifies the characteristics of slotted set screws with flat point, in steel and stainless steel, with metric coarse pitch threads M1,2 to M12, and with product grade A. If in certain cases other specifications are requested, hardness classes and stainless steel grades can be selected from ISO 898-5 or ISO 3506-3, and dimensional options from ISO 888, ISO 965-1 or ISO 4753.

This document specifies the transport and container formats for JPEG XL codestreams as specified in ISO/IEC 18181-1. This document specifies how to add metadata and extensions to JPEG XL codestreams. A file as described by this document is called a JPEG XL file.

This document specifies a test procedure for determination of the size of industrial radiographic gamma sources of 0,5 mm or greater, made from the radionuclides Iridium 192, Ytterbium 169, Selenium 75 or Cobalt 60, by a radiography method with X-rays. The source size of a gamma radiation source is an important factor which affects the image quality of gamma ray images. The source size is determined with an accuracy of ±10 % but typically not better than ±0,1 mm. The source size is provided by the manufacturer as the mechanical dimension of the source insert. A measurement can be required if the manufacturing process is validated or monitored after implementation of the source into the holder. This document can be used for other radionuclides after validation. The standard test method ASTM E1114 provides further information on the measurement of the Ir-192 source size, the characterization of the source shape, and its correct assembly and packaging.

This document gives guidance on a) confidentiality of personal information for the customer and the laboratory, b) laboratory safety requirements, c) calibration sources and calibration dose ranges useful for establishing the reference dose-response curves that contribute to the dose estimation from CBMN assay yields and the detection limit, d) performance of blood collection, culturing, harvesting, and sample preparation for CBMN assay scoring, e) scoring criteria, f) conversion of micronucleus frequency in BNCs into an estimate of absorbed dose, g) reporting of results, h) quality assurance and quality control, and i) informative annexes containing sample instructions for customers, sample questionnaire, a microscope scoring data sheet, and a sample report. This document excludes methods for automated scoring of CBMN.

This document specifies safety, constructional, performance, testing and documentation requirements of gas safety shut-off devices (SSDs). This document is applicable to SSDs with operating pressures greater than 500 kPa (5 bar) up to 10 MPa (100 bar) of nominal connection sizes up to and including DN 400 for use with fuel gases such as natural gas, manufactured gas, biomethane or liquefied petroleum gas (LPG) in commercial industrial installations, including fuel gas infrastructures. This document is applicable to SSDs for an operating temperature range from −20 °C to +60 °C; This document is applicable to: — test methods which are intended for product type tests, routine tests and batch surveillance tests; — SSDs which use the pipeline gas as a source of control energy unassisted by any external power source; — SSDs integrating on the same body a second SSD, conforming to the requirements in this document; — SSDs integrating a gas pressure regulator conforming to ISO 23555-2; — SSDs incorporating a creep (venting) relief device and/or a vent limiter conforming to the requirements in this document; This document does not apply to: — SSDs upstream from/on/in domestic gas-consuming appliances which are installed downstream of domestic gas meters; — SSDs designed to be incorporated into pressure control systems used in service lines (pipework from the main pipework in a gas infrastructure to the point of delivery of the gas) with declared volumetric flow rate ≤ 200 m3/h (n); — industrial process control valves on/off type (see IEC 60534 for information on the design, classification and tests for this type of valve); NOTE Such valves cannot be declared conformant to this document. — SSDs used in sour gas environments (gas environments containing water and H2S are considered sour) or corrosive conditions; — SSDs in service conditions with waste gases (e.g. biogas etc.), if additional information is not provided (e.g. contaminant, liquid etc.).

This document outlines the general requirements for conducting a multi-centre medical data collaborative analysis, covering various aspects such as system architecture, data storage, data standardization, collaborative research management and security. The data considered in this standard primarily encompasses electronic health record data for multi-centre collaborative researches, including structured data, medical text data, image data, etc. This standard is applicable to a wide range of individuals and institutions, including developers, maintainers, management personnel, researchers, and data-owning organizations.

The ISO 22915 series deals with the safety of industrial trucks, as defined in ISO 5053-1, relative to their stability and the verification of that stability. This document specifies basic test criteria and requirements for verifying the stability of industrial trucks, hereafter referred to as "trucks". It is applicable to the following truck types and special conditions: a) counterbalanced trucks with mast as specified in ISO 22915-2; b) reach and straddle trucks as specified in ISO 22915-3; c) pallet stackers, double stackers, and order-picking trucks with operator position elevating up to and including 1 200 mm lift height as specified in ISO 22915-4; d) single-side-loading trucks as specified in ISO 22915-5; e) bidirectional and multidirectional trucks as specified in ISO 22915-7; f) additional stability test for trucks operating in special conditions of stacking with the mast tilted forward as specified in ISO 22915-8; g) counterbalanced trucks with mast handling freight containers of 6 m (20 ft) length and longer as specified in ISO 22915-9; h) additional stability test for trucks operating in special conditions with the load substantially laterally displaced by powered devices as specified in ISO 22915-10; i) industrial variable-reach trucks as specified in ISO 22915-11; j) industrial variable-reach trucks handling freight containers of 6 m (20 ft) length and longer as specified in ISO 22915-12; k) rough-terrain trucks with mast as specified in ISO 22915-13; l) rough-terrain variable-reach trucks as specified in ISO 22915-14; m) counterbalanced trucks with articulated steering as specified in ISO 22915-15; n) pedestrian-propelled trucks as specified in ISO 22915-16; o) towing tractors, burden and personnel carriers as specified in ISO 22915-17; p) additional stability test for trucks operating in the special condition of offset load, offset determined by utilization as specified in ISO 22915-20; q) order-picking trucks with operator position elevating above 1 200 mm as specified in ISO 22915-21; r) lateral- and front-stacking trucks with and without elevating operator position as specified in ISO 22915-22; s) slewing variable-reach rough-terrain trucks as specified in ISO 22915-24. It is also applicable to trucks operating under the same conditions when equipped with load-handling attachments and low-lift trucks with lift height up to and including 500 mm. This document does not apply to the following: — trucks handling suspended loads which can swing freely.

This document defines terms and definitions for the integral seawater desalination process. It covers basic definitions, as well as specific subject matter including water intake, pre-treatment, membrane desalination, distillation desalination, post-treatment and auxiliary terms. This document applies to all types and sizes of seawater desalination facilities and systems, and to all types of stakeholders involved in seawater desalination.

This document specifies three methods to determine the permeability to gas by measuring the volume of gas diffusing through a rubber or plastics hose or length of tubing used for gas applications in a specified time. — Method 1 is for determining the permeability of the complete hose wall or length of tubing wall, excluding end fittings, to the test gas. — Method 2 is for determining the permeability at the hose and fitting interface to the test gas. — Method 3 is for precisely determining the permeability of the complete hose or length of tubing, including end fittings.

This document specifies a method for the determination of the ash of coal and coke.

This document specifies requirements for the qualification and certification of personnel who perform operations on NGVs, according to the level of safety required by the role and/or position. NOTE 1 The certification is required for the level 3 and 4 of competence as defined in ISO 23684. NOTE 2 This document specifies requirements for what are, in effect, third-party conformity assessment schemes. These requirements do not directly apply to conformity assessment by second or first parties, but relevant parts of this document can be referred to in such arrangements.

This document specifies the method of calculating the coordinates of the CIE 1976 L*u*v* colour space including correlates of lightness, chroma, saturation and hue. It includes two methods for calculating Euclidean distances in this space to represent the relative perceived magnitude of colour differences. It also specifies the method of calculating the coordinates of the u′,v′ uniform chromaticity scale diagram. This document is applicable to tristimulus values calculated using the colour-matching functions of the CIE 1931 standard colorimetric system or the CIE 1964 standard colorimetric system. This document is applicable for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object, where a three-dimensional space more uniform than tristimulus space is required. This includes self-luminous displays, like computer, television and smart-phone displays, if they are being used to simulate reflecting or transmitting objects and if the stimuli are appropriately normalized. This document, as a whole, does not apply to colour stimuli perceived as belonging to an area that appears to be emitting light as a primary light source or that appears to be specularly reflecting such light. Only the u′,v′ uniform chromaticity scale diagram defined in 4.1 and the correlates of hue and saturation defined in 4.3 apply to such colour stimuli.