ISO - International Organization for Standardization

This document addresses the provision of tyre pressure monitoring (TPM) services. It specifies the form and content of the transmission data required to support TPM systems (TPMS) and the access methods for these data. This document provides specifications for common communications and data exchange aspects of the TPM application service that a jurisdiction regulator or operator can elect to require or support as an option, including: a) a high-level definition of the service that a service provider has to provide [the service definition describes common service elements (SEs), but does not specify the detail of how such an application service is instantiated, nor the acceptable value ranges of the data concepts defined]; b) the means to realize the service; c) application data naming, content and quality that an in-vehicle system (IVS) has to deliver, including a number of TPM profiles or data (noting that requirements and constraints of what can/cannot be transmitted over the air can vary between jurisdictions); d) support for a number of defined communication profiles to enable remote inspection. This document provides specifications for the following application profiles: — Application profile A1: the cyclical initiation of TPM message by on-board equipment (TPM-C). — Application profile A2: the exceptional initiation of TPM message by on-board equipment (TPM-E). — Application profile A3: the provision of TPM data as the result of an off-board request (TPM-R). — Application profile A4: The provision of TPM data as the result of an off-board reading of tyre pressures of vehicles which can potentially be unequipped (TPM-O).

This document specifies graphical symbols for diagrams related to industrial components, products and processing. This document constitutes a symbol library, from which users can use the symbols or created symbol examples for use in diagrams (see Tables 1 to 149). General rules and guidance for the preparation and presentation of graphical symbols are given in ISO 14617-1. Application rules for the symbols are shown in normative Annex A. This document does not apply to: — graphical symbols for fluid power objects, see ISO 1219-1 (the collective application standard of the ISO 14617 series); — symbols of measurement and control functions such as mathematical functions and process functions; — graphical symbols for electrotechnical objects, see the IEC 60617 database. Symbols deleted from the previous edition of the ISO 14617 series are summarized in informative Annex B as a reference. The alphabetic index of symbols defined in this document is shown in informative Annex C.

This document specifies safety and quality requirements for detection and avoidance (DAA) systems used between uncrewed aircraft systems (UAS) and other objects including aircraft. This document includes the requirements for radars and optical sensors used for DAA and is derived to meet the requirements for UAS operations involving DAA set out in ISO 21384-3.

This document specifies requirements and test methods for electromagnetic emissions and for electromagnetic immunity of electrically powered wheelchairs and scooters, intended for indoor or outdoor use, or both, by people with disabilities. It is also applicable to manual wheelchairs with an add-on power kit. It is not applicable to vehicles designed to carry more than one person. This document also specifies requirements and test methods for the electromagnetic compatibility of battery chargers intended for use with electrically powered wheelchairs and scooters. A reference configuration is specified for adjustable wheelchairs and scooters in order to enable test results to be used for comparison of performance.

This document specifies the minimum design and performance requirements for clothing as part of personal protective equipment (PPE) to be used by firefighters, primarily but not solely to protect against exposure to flame and high thermal loads, and particulates (including other products of combustion). To assist with choice based on user risk assessment, a single level of heat and flame protection is included with a number of options that can provide additional protection. For more information on firefighter risk assessment consult ISO/TR 21808. The scope of this document does not include clothing for use in high-risk fire exposures where for example, reflective protective clothing according to ISO 15538 could be more appropriate, or for use in long-term firefighting operations in high ambient temperature, for example bush, wildland, or forest firefighting where clothing according to ISO 15384 (ISO 16073-3) could be more appropriate. Similarly, this document does not include clothing to protect against chemical and biological hazards, other than against short-term and accidental exposure while engaged in firefighting and associated activities when fighting fires occurring in structures. This document describes types, design, and performance of clothing, the specific requirements for clothing, marking, and manufacturer’s instructions.

This document defines a data format to exchange data that is relevant for exchanging and using measurement equipment between calibration service providers, laboratories and requestors in vehicle safety testing. Additional content found on https://standards.iso.org/iso/ts/23520/ed-1/en defines standard exchange for equipment grouping and metadata definitions for test documentation. Related electronic documents are available for detailed reference based on examples. This document is applicable for all equipment manufacturers, calibration service providers, laboratories and their customers. This document excludes the exchange of test results or test documentation itself which is extensively defined in ISO/TS 13499.

This document specifies the general requirements and tests for decomposition blockers downstream of pressure regulators in acetylene manifold systems (see ISO 14114). Decomposition blockers can be used in the low-pressure section (downstream of acetylene manifold system outlet) up to 0,15 MPa (1,5 bar) e.g. in pipelines, outlet points or for the protection of low-pressure sections in big pipe systems. Decomposition blockers can only be used in sections with pure acetylene. The possible backflow of oxygen or air into the section where the decomposition blocker is installed needs to be prevented by a non-return valve downstream of the decomposition blocker.

This document specifies the minimum design and performance requirements for a fire hood as part of personal protective equipment (PPE) to be used by firefighters, primarily but not solely to protect against exposure to flame, high thermal loads and particulate protection.

This document specifies certain characteristics of the essential oil of lavandin super [Lavandula x intermedia Emeric ex Loisel. ‘super’ (Ex Lavandula angustifolia Mill. x Lavandula latifolia Medik. ‘super’)], with a view to facilitating the assessment of its quality.

This document defines test methods for performance testing of individual filter elements and of the complete filtration system.1) This procedure is intended for filter elements and filter systems which operate at flow rated up to 8 000 m3/h per filter element. 1) The filters will be loaded with ultra-fine salt particles of a size mostly sub micron during variable humidity to simulate real offshore and coastal conditions hence filters with an initial conditioned efficiency lower than 50 % for the ePM1 particles (filter class T7) are likely to underperform and would not be suited as a single stage filter.

This document specifies the general principles of a method for determining the dynamic rheological properties of polymer melts at angular frequencies typically in the range of 0,01 rad s-1 to 100 rad s-1 by means of an oscillatory rheometer with a parallel-plate or a cone-and-plate geometry. Angular frequencies outside this range can also be used. The method is applicable for determining values of the following dynamic rheological properties: complex shear viscosity η*, dynamic shear viscosity η', the out-of-phase component of the complex shear viscosity η”, complex shear modulus G*, shear loss modulus G”, shear storage modulus G', phase angle δ, and loss factor tanδ. It is suitable for measuring complex shear viscosity values typically up to ~10 MPa s. NOTE The shear loss modulus G´´ is sometimes also called viscous shear modulus and the shear storage modulus G´ is sometimes also called elastic shear modulus.

This document specifies three methods for the determination of the ash of poly(vinyl chloride). The general procedures given in ISO 3451-1 are followed. For ash, method A is used. For sulfated ash, methods B and C are used. All three methods are applicable to resins, compounds and finished products. Methods B and C are applicable when lead-containing compounds are present.

This document specifies the framework, concepts, methodology for testing, and criteria to be achieved to claim conformance to multiple parts of the ISO/IEC 21122 series. It lists the conformance testing procedures.

This document defines, extending the requirements of ISO 14300-1, the principles and requirements for integrated risk management on a space project. It explains what is needed to implement a project-integrated risk management policy by any project actor, at any level (i.e. customer, first-level supplier or lower-level suppliers). This document contains a summary of the general risk management process, which is subdivided into four basic steps and nine tasks. This document is applicable to all the space project phases, as defined in ISO 14300-1.

The purpose of this document is to set out the general principles pertaining to the sampling strategy, to the collection and conditioning of samples, to their transport to the laboratory and to the pre-treatment operations to be carried out prior to analysis. It is intended for the use of organisations that implement a sampling programme as well as organisations responsible for collecting samples of bioindicators. These principles are not directly applicable to accident or post-accident situations. These principles can apply to biological matrices in the environment.

This document is applicable to enclosed speed increasing gearboxes for horizontal axis wind turbine drivetrains with a power rating in excess of 500 kW. This document applies to newly designed gearboxes for wind turbines installed onshore or offshore. The technical requirements given in this document are not intended for repaired or refurbished gearboxes, or for the extension of the service life beyond the design life. This document provides requirements and guidance on the analysis of the wind turbine loads in relation to the design of the gear and gearbox elements. The gearing elements covered by this document include such gears as spur, helical or double helical and their combinations in parallel and epicyclic arrangements in the main power path. This document does not apply to power take off (PTO) gears. This document includes requirements, design recommendations, and rating of gearboxes with rolling bearings, plain bearings, or combinations of both bearing types. Also included are requirements and guidance on the engineering of shafts, shaft hub interfaces, lubrication, wind turbine controller interface, and the gear case structure to achieve a design that is capable of withstanding the environment and operating conditions of a wind turbine. Requirements for dynamic analysis of the gearbox within the wind turbine system are specified for the purpose of identifying load levels exceeding the predictions of the global aeroelastic simulation. The analysis of noise transmission and emission (e.g. tonal emission at gear mesh frequencies) is not within the scope of this edition of the document. Further, this document provides requirements and guidance on gearbox design verification, prototype testing and production testing, as well as consideration of design for service and maintenance. A method for a systematic assessment of the design reliability of a gearbox design under reference operating conditions is specified in IEC TS 61400‑4-1[1]. This document is supported by two Technical Reports: IEC TR 61400‑4-2[2] provides additional information on lubrication of wind turbine drivetrains and IEC TR 61400‑4-3[3] contains explanatory notes and supportive information to the requirements specified in this document.

This specification defines a standard data format for referencing software artifacts that match the data model of modern distributed version control systems. This format includes the typical tree-like structure of a filesystem hierarchy, but also, special nodes to track revisions and releases, as well as the full status of a version control system, with all its development branches. A key property of SWHIDs is that they can be computed using cryptographically strong functions directly from the digital objects they refer to, by anyone that has access to a copy of those objects. This enables decentralised and independent verification of integrity, without relying on a registry or a central authority. The computation of the SWHID identifiers is based on Merkle Acyclic Directed Graphs, a natural generalization of Merkle trees. The resolution of SWHIDs, that is, the process of obtaining a copy of a digital artifact corresponding to a given SWHID, is outside the scope of this specification.

This document provides the normative specification of Simple Binary Encoding (SBE), which is one of the possible syntaxes for FIX messages, but not limited to FIX messages. The scope comprises the encoding (wire format) and the message schema for SBE.

This document specifies how to design and operate allocation systems for gas production facilities. It describes the most common types, principles and methods used for the allocation of gas and associated liquids. The objective is to provide an approach to current best practice in the oil and gas industry. It applies to gas and liquid allocations to be performed in production, processing, transportation, storage and terminal installations dealing with natural gas and associated liquids as well as end products like sales gas, liquefied petroleum gas (LPG), liquefied natural gas (LNG), condensate and to some extend non-hydrocarbon gases like CO2, H2. This document provides the minimum information needed to develop and implement allocation procedures and systems both for internal purposes (well allocation) and fiscal or commercial applications with different owners and stakeholders. This document can be used to develop gas and liquid processing and transportation agreements and regulatory documents as well as to conduct audit of measurement and allocation systems. It also introduces the areas of competence needed and the terminology used in the industry.

This document specifies the requirements for the design, manufacture and testing of non‑reclosable pressure-relief devices for cryogenic service, i.e. for operation with cryogenic fluids in addition to operation at temperatures from ambient to cryogenic. This document is restricted to bursting‑disc and buckling‑pin devices not exceeding a nominal diameter size (DN) of 200 that are designed to relieve single‑phase vapours or gases. A bursting‑disc or buckling‑pin assembly can be specified, constructed and tested such that it is suitable for use with more than one gas or with mixtures of gases. NOTE This document does not provide methods for determining the capacity of bursting‑disc or buckling‑pin devices for a particular cryogenic vessel. Such methods are provided in ISO 21013-3.

This document defines terms for: — high-frequency oscillatory ventilation (HFOV); — percussive ventilation, including high-frequency percussive ventilation (HFPV); — jet ventilation, including high frequency jet ventilation (HFJV); — modes that combine high-frequency and physiological-rate ventilation. It is applicable: — in lung ventilator and breathing-therapy device standards, — in health informatics standards, — for labelling on medical electrical equipment and medical electrical systems, — in medical electrical equipment and medical electrical system instructions for use and accompanying documents, — for medical electrical equipment and medical electrical systems interoperability, and — in electronic health records. This document is also applicable to those accessories intended by their manufacturer to be connected to a ventilatorbreathing system or to a ventilator, where the characteristics of those accessories can affect the basic safety or essential performance of the ventilator or ventilator breathing system. NOTE This document can also be used for other applications relating to lung ventilation, including non-electrical devices and equipment, research, description of critical events, forensic analysis and adverse event (vigilance) reporting systems.

This document specifies requirements for dried ginger (Zingiber officinale Roscoe) in whole/pieces and ground forms. Annex A specifies a method for the determination of calcium. Recommendations for storage and transport conditions are given in Annex B.

This document describes the reference software and conformance suite for the file format documents in multiple standards. Since these standards share a lot of technology, their reference software and conformance program are being handled together. These standards are: ISO/IEC 14496-12, ISO/IEC 14496-14, ISO/IEC 14496-15, ISO/IEC 14496-30 and ISO/IEC 23008-12. The purpose of the conformance suite is to cover the set of valid features that can be exercised in the file format. Media conformance is not covered, though of course to exercise the file format features, media will be stored.

This document provides best practices for using the ISO/IEC 19086-2 metric model, illustrated with examples.

This document establishes requirements on implementations that quantify how a face image’s properties conform with those of canonical face images, for example those specified in ISO/IEC 39794-5:2019, Clause D.1, for three use-cases: 1) collection of reference samples for ID documents; 2) sample system enrolment; and 3) probes for instantaneous response. This document also establishes terms and definitions for quantifying face image quality and specifies methods for quantifying the quality of face images. This document does not establish requirements on: — assessing the quality of pairs or sequences of images; NOTE This document establishes requirements for software that inspects exactly one image. This document does not establish requirements for software that compares two or more images (such as biometric recognition). However, the computations of this document can be applied separately to each image in a pair or sequence. — assessing the quality of 3D captures; — encodings of face image quality data; — performance evaluation of face image quality assessment algorithms. The use cases within scope of this document primarily address the assessment of images from data capture subjects who consent to processing of their biometric data, or for whom biometric capture is operationally authorized.

This document describes a test procedure for the determination of resistance to repeated loading by – amongst others – applying out-of-phase load cycles which generate forces in two directions, representative of those caused by traffic on railway track, taking into account the effect of two consecutive axles of passing railway vehicles.

This document specifies a method for determining the resistance to mechanical penetration of nonwoven fabrics by a ball of a given diameter. The method is primarily designed to be used on nonwovens with some degree of elasticity, for which a regular burst test does not apply.

This document defines the principles used to determine loads and the induced environment during the service life of a space system and its components, taking account of the notions of probability, combined loads, corresponding safety factors and life cycle.

This document specifies methods for the evaluation of some aspects of the behaviour of nonwoven fabrics in the presence of liquids. In particular: — the liquid absorbency time; — the liquid absorptive capacity; — the liquid wicking rate (capillarity). The different aspects of absorbency can relate to various end uses of the tested products. The tests do not apply to any fabric containing super absorbent materials.

This document defines terms commonly used in paper sacks manufacture. It refers to single- and multi-ply sacks made of paper or combination of paper and other materials where the paper is the main part. It does not refer to bags for retail trade.

This document specifies the data structure and content of an interface that permits communication between position-providing device(s) and position-using device(s) enabling the position-using device(s) to obtain and unambiguously interpret position information and determine, based on a measure of the degree of reliability, whether the resulting position information meets the requirements of the intended use. A standardized interface for positioning allows the integration of reliable position information obtained from non-specific positioning technologies and is useful in various location-focused information applications, such as surveying, navigation, intelligent transportation systems (ITS) and location-based services (LBS).

This document establishes a system of symbols for the basic rubbers in both dry and latex forms, based on the chemical composition of the polymer chain. The purpose of this document is to standardize the abbreviated terms used in industry, commerce and government.

This document: — specifies communication service parameters presented by ITS station (ITS-S) application processes to the ITS-S management in support of automatic selection of ITS-S communication profiles in an ITS station unit (ITS-SU); — specifies related procedures for the static and dynamic ITS-S communication profile selection processes at a high functional level; — provides an illustration of objectives used to estimate an optimum ITS-S communication profile.

This document specifies the requirements and test methods for inspection of the use of knapsack sprayers carried on the back or shoulder of the operator for use with plant protection products (PPPs). The requirements relate mainly to the condition of the sprayer with respect to its potential risk to the operator and the environment and its performance to achieve good application. This document is applicable to lever-operated knapsack sprayers, knapsack compression sprayers and knapsack sprayers driven by an engine or electric motor using hydraulic pressure atomisation of the spray liquid, intended for use primarily in agriculture, forestry and horticulture, with a nominal volume of more than 6,0 l. It does not apply to — knapsack combustion engine-driven air-blast sprayers, which are covered in ISO 28139:2019/Amd 1:2024, — controlled droplet application equipment utilizing rotary atomisers, or — portable application equipment for spatial application (such as foggers).

This document specifies methods for the continuous and intermittent sampling of liquefied natural gas (LNG) while it is being transferred through an LNG transfer line.

This document defines a process assessment model for system life cycle processes, conformant with the requirements of ISO/IEC 33004, for use in performing a conformant assessment in accordance with the requirements of ISO/IEC 33002.

This document specifies: — the interfaces between electronic fee collection (EFC) back-office systems for vehicle-related transport services, e.g. road user charging, parking and access control; — an exchange of information between the back-office system of the two roles of service provision and toll charging, e.g.: — charging-related data (toll declarations, billing details, payment claims, payment announcements), — administrative data (trust objects, EFC context data, etc.), and — confirmation data; — transfer mechanisms and supporting functions; — information objects, data syntax and semantics. This document is applicable for any vehicle-related toll service and any technology used for charging. The data types and associated coding related to the data elements described in Clause 6 are specified in Annex A, using the abstract syntax notation one (ASN.1) according to ISO/IEC 8824-1. This document specifies basic protocol mechanisms over which implementations can specify and perform complex transfers (transactions). This document does not specify, amongst others: — any communication between TC or TSP with any other involved party; — any communication between elements of the TC and the TSP that is not part of the back-office communication; — interfaces for EFC systems for public transport; — any complex transfers (transactions), i.e. sequences of inter-related ADUs that can possibly involve several APDU exchanges; — processes regarding payments and exchanges of fiscal, commercial or legal accounting documents; — definitions of service communication channels, protocols and service primitives to transfer the APDU.

This document specifies methods for the determination of major and minor element concentrations in solid recovered fuels after digestion by the use of different acid mixtures and by addition of a fluxing agent for solid recovered fuel (SRF) ash. a) Method A: Microwave assisted digestion with hydrochloric, nitric and hydrofluoric acid mixture (6 ml HCl; 2 ml HNO3; 2 ml HF) followed by boric acid complexation; b) Method AT: Microwave assisted digestion with hydrochloric, nitric and tetrafluoroboric acid mixture (6 ml HCl; 2 ml HNO3; 4 ml HBF4); c) Method B: Microwave assisted digestion with hydrochloric, nitric and hydrofluoric acid mixture (0,5 ml HCl; 6 ml HNO3; 1 ml HF) followed by boric acid complexation; d) Method BT: Microwave assisted digestion with hydrochloric, nitric and tetrafluoroboric acid mixture (0,5 ml HCl; 6 ml HNO3; 2 ml HBF4); e) Method C: Microwave assisted digestion with nitric acid, hydrogen peroxide and hydrofluoric acid mixture (2,5 ml H2O2; 5 ml HNO3; 0,4 ml HF) and optional boric acid complexation; f) Method CT: Microwave assisted digestion with nitric acid, hydrogen peroxide and tetrafluoroboric acid mixture (2,5 ml H2O2; 5 ml HNO3; 0,8 ml HBF4); g) Method D: Digestion of the ashed SRF sample with fluxing agent lithium metaborate in an oven at 1 050 °C. This document is applicable for the following major and minor/trace elements: — Major elements: aluminium (Al), calcium (Ca), iron (Fe), potassium (K), magnesium (Mg), sodium (Na), phosphorus (P), sulfur (S), silicon (Si) and titanium (Ti). — Minor/trace elements: arsenic (As), barium (Ba), beryllium (Be), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), mercury (Hg), molybdenum (Mo), manganese (Mn), nickel (Ni), lead (Pb), antimony (Sb), selenium (Se), tin (Sn), thallium (Tl), vanadium (V) and zinc (Zn). Method A is applicable for general use for SRF and ashed SRFs, but the amount of the test portion can be very low in case of high concentration of organic matter. Method AT can be used if an alternative to HF is necessary. Method B with a higher volume of nitric acid is applicable for SRFs with high organic matter (e.g. suitable for high plastic content) that can be difficult to digest with less nitric acid or as a substitute for method A if appropriate equipment is not available. Method BT can be used if an alternative to HF is necessary. Method C with combination of nitric acid and hydrogen peroxide and addition of hydrofluoric acid is applicable for wood based SRFs (e.g. demolition wood) or when there is a need for comparability to solid biofuel standards. Method CT can be used if an alternative to HF is necessary. Method D is specifically applicable for determination of major elements in ashed SRF samples. XRF can be used for the analysis of major elements (Al, Ca, Fe, K, Mg, Na, P, S, Si, Ti) after ashing (815 °C) of the samples and several major and minor/trace elements in SRF can be analysed by XRF after suitable calibration provided that the concentration levels are above instrumental detection limits of the XRF instrumentation and after proper preliminary testing and validation. Digestion methods with HF and subsequent boric acid complexation or application of method D are applicable for determination of Si and Ti (better digestion efficiency). Alternative digestion methods can be applied, if their performance is proved to be comparable with those of the methods described in this document.

This document specifies a test method for determination of the thermal conductivity of ceramics coatings on ceramic or metal substrate at the direction perpendicular to the surface by using relative method. Procedures for calculation, data collection, and reporting are given. This document is applicable primarily to the ceramic coatings on ceramic or metal substrates. The applicable coatings are thin ceramic coatings used as a thermal barrier coating, environmental barrier coating and wear-resistant coating. This document is applicable for coating thickness to substrate thickness ratios greater than 1/100 and less than 1/500. While this ratio range it is too low for direct measurement methods, the calculation specified in this document is effective for estimating the thermal conductivity of the coating in this range, including thermal resistance.

This document specifies the test method used to determine the strength of the adhesive-bonded carbon fibre reinforced plastics (CFRP) to metal assemblies under combined loading conditions. The loading fixture, a standard specimen, and procedure for combined shear and normal load tests under plane stress conditions are provided. The test method is also applicable to bonded joints between metals and other composite materials, including glass fibre-reinforced plastics. This document does not cover specimen preparation of the adhesive joint.

This document specifies a method for the determination of pH of nicotine pouches.

This document specifies a data model of visualization elements for 3D data exchange for error information feedback between product lifecycle management (PLM) and manufacturing execution system (MES or MOM: manufacturing operations management) in the engineering plant industry. The followings are within the scope of this document: a) data model of visualization elements for the engineering plant industry with complex and long-lifespan products; b) definitions of the properties of the data model for the visualization elements of the PLM-MES interface; c) relationship with the information model of visualization elements as defined in ISO 10303-239; d) relationship with the information model of the visualization elements as defined in IEC 62264 series; e) information flow with equipment used in production and related measuring equipment as managed inside MES.

This document specifies the data transfer models between roadside equipment (RSE) and integrated circuit cards (ICCs) and the interface descriptions between the RSE and on-board equipment (OBE) for on-board accounts using an ICC. It also provides examples of interface definitions and transactions deployed in several countries. This document covers: — data transfer models between the RSE and ICC which correspond to the categorized operational requirements and the data transfer mechanism for each model; — the interface definition between the RSE and OBE based on each data transfer model; — the interface definition for each model; — the functional configuration; — RSE command definitions for ICC access; — the data format and data element definitions of RSE commands; — a transaction example for each model (Annex B).

This document provides product assurance requirements and recommendations for commercial satellites throughout all phases. This document is applicable to the prime contractor, subcontractors and suppliers.

This document specifies the outside diameters and thicknesses of tubes, for all metallic materials, to be selected for all uses in aircraft structural and system design.

This document specifies test methods for the determination of the degree of disintegration of plastic materials floating in water. NOTE The disintegration test is a field test performed under natural environmental conditions in a part of the sublittoral zone, the shores of lakes or rivers, and the test samples are immersed to a depth between 1,5 m to 3 m from water surface. This document specifies the general requirements of the apparatus and the procedures for using the test methods described. This document is not suitable for the assessment of disintegration caused by heat or light exposure. The described field test is a disintegration test and not a biodegradation test. Therefore, it cannot be used for demonstrating biodegradation or for making unqualified claims such as “biodegradable in marine environment” and similar.

This document specifies the rating requirements, published ratings and marking provisions of centrifugal refrigerant compressors. This document applies to centrifugal compressors and their performance in heating, ventilation and air-conditioning applications. This document provides guidance and requirements for the industry, including manufacturers, engineers, installers and contractors. It defines the minimum amount of information in a standardized form to enable the evaluation and comparison of different compressors for use in an application and suggests a method to be used to guarantee the accuracy of that information.