Standartų projektų sąrašas

prEN 12405-2 Viešoji apklausa

Komentavimo iki data 2026-05-07

Dujų skaitikliai. Perskaičiavimo įtaisai. 2 dalis. Energijos perskaičiavimas

This European Standard specifies the requirements and tests for the construction, performance, safety and conformity of conversion devices used to determine the energy of fuel gases described in the Table 1, including those of the 1st and 2nd families according to EN 437. The energy conversion device (ECD) considered in this standard consists of an energy calculator (EC) and is associated with the following devices and/or functions: - a volume conversion device (VCD) or a flow computer used as gas meter conversion, either conforming to EN 12405-1, or to prEN 12405-3, for high accuracy measurements; - a calorific value determination device (CVDD). Requirements for type approval tests of the devices, not included in the above-mentioned standards are described in appropriate annexes specified in Table 6. For the purpose of this European Standard, the term "volume conversion devices" (VCDs) includes flow computers (FCs). A single calculator may undertake the volume conversion functions for different metering lines.

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prEN 17761 Viešoji apklausa

Komentavimo iki data 2026-05-19

Neorganinės trąšos. Chloridų kiekio nustatymas didelį azoto kiekį turinčiose amonio nitrato trąšose

This document specifies a method for the determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content. This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

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prEN 10380 Viešoji apklausa

Komentavimo iki data 2026-06-02

Gatavi statybiniai nelegiruotojo ir legiruotojo plieno gaminiai

The standard shall cover finished products made of carbon steel, steel alloy and cast steel intended to be used as structural elements in construction works, including its use in installations. Products may be coated, or uncoated. Products may be weldable, or non-weldable. Products made of stainless steel are excluded from this product definition. The standard shall cover: Product group on sections and profiles, product group on plates, sheets, strip and wide flats, product group on bars, rods and wire, product group on hollows and product group on piles and sheet piles.

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prEN ISO 13164-1 Viešoji apklausa

Komentavimo iki data 2026-06-11

Vandens kokybė. Radonas 222. 1 dalis. Bendrieji principai (ISO/DIS 13164-1:2026)

This part of ISO 13164 gives general guidelines for sampling, packaging, and transporting of all kinds of water samples, for the measurement of the activity concentration of 222Rn. The test methods fall into two categories: a) direct measurement of the water sample without any transfer of phase (see ISO 13164-2[7]); b) indirect measurement involving the transfer of the 222Rn from the aqueous phase to another phase (see ISO 13164-3[8] and 13164-4[9]). The test methods can be applied either in the laboratory or on-site. The laboratory is responsible for ensuring the suitability of the test method for the water samples tested.

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prEN IEC 61850-7-40:2026 Viešoji apklausa

Komentavimo iki data 2026-04-22

Elektros tiekimo sistemų automatizavimo ryšių tinklai ir sistemos. 7-40 dalis. Pagrindinė ryšių struktūra. Suderinamos loginių mazgų ir duomenų objektų klasės. Bendrieji dalykai

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prEN IEC 60079-7:2026 Viešoji apklausa

Komentavimo iki data 2026-05-08

Sprogiosios atmosferos. 7 dalis. Įrangos apsauga naudojant padidintąją „e“ saugą

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ISO/DIS 37014 Viešoji apklausa

Komentavimo iki data 2026-05-24

Valdymo brandos modelis. Valdomosios atskirų organizacijų grupės. Nurodymai

This document is designed to help controlled groups of organizational entities (3.1.6) assess and strengthen their governance maturity, drawing on the principles and guidance of ISO 37000 and ISO 37004. This applicability remains consistent across all controlled entities, irrespective of sector, scale or operational context. This document is applicable to a particular type of group of organizational entities, namely controlled groups of organizational entities (controlled group), regardless of the type, size and nature of activity of the organizations in the group (controlled entities), and whether they operate in the public, private or not-forprofit sectors.

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prEN ISO 3823 Viešoji apklausa

Komentavimo iki data 2026-05-26

Odontologija. Sukieji instrumentai. Plieniniai ir karbidiniai dantų grąžtai (ISO/DIS 3823:2026)

This document specifies the general requirements and test methods for steel and carbide rotary instruments used in dentistry, including designation, colour code and a quality control for these instruments. It applies to all types of steel and carbide rotary instruments independent of type and shape.

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prEN IEC 63378-2-2:2026 Viešoji apklausa

Komentavimo iki data 2026-04-22

Puslaidininkinių įtaisų korpusų šiluminių charakteristikų standartizavimas. 2-2 dalis. Puslaidininkinių įtaisų korpusų šiluminio modeliavimo 3D modeliai, skirti PBGA ir FBGA nuostoviosios būsenos analizei

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prEN 13872 Viešoji apklausa

Komentavimo iki data 2026-04-28

Klijai. Cementinių ir kalcio sulfato grindų išlyginimo mišinių bandymo metodas. Traukimosi nustatymas

This document specifies the measurement of dimensional change of set cementitious and calcium sulfate-based floor levelling compounds after mixing with a liquid, e.g. water. This document applies to cementitious and calcium sulfate-based floor levelling compounds used for the preparation of subfloors to ensure the suitability of the substrate prior to the installation of floor coverings. By using the floor levelling compound, a homogeneous layer is built up on the load-bearing substrate, to ensure consistent absorbency, evenness and strength.

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prEN 3660-033 Viešoji apklausa

Komentavimo iki data 2026-05-26

Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 033: Stainless steel banding band, style Z, for attachment of individual and/or overall screens to cable outlets - Product standard

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prEN ISO 787-1 Viešoji apklausa

Komentavimo iki data 2026-05-28

Bendrieji pigmentų ir užpildų tyrimo metodai. 1 dalis. Pigmentų spalvos palyginimas (ISO/DIS 787-1:2026)

Procedure for comparing the colour of a coloured pigment with that of an agreed sample. The procedures described in this document are acceptable but the method using an automatic muller is the reference method. The binder is not specified. It shall be agreed between the interested parties. If no binder is agreed, linseed oil, complying with the specification in ISO 150, should be used. - Replaces ISO/R 787/1:1968.

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prEN 15199-1 Viešoji apklausa

Komentavimo iki data 2026-04-24

Naftos produktai. Distiliacijos temperatūrų intervalų pasiskirstymo nustatymas dujų chromatografijos metodu. 1 dalis. Vidutiniai distiliatai ir tepalinės bazinės alyvos

This document specifies a method for the determination of the boiling range distribution of petroleum products by capillary gas chromatography using flame ionization detection. The document is applicable to materials having a vapour pressure low enough to permit sampling at ambient temperature and a boiling range of at least 100 °C. The document is applicable to distillates with initial boiling points (IBP) above 100 °C and final boiling points (FBP) below 750 °C, for example, middle distillates and lubricating base stocks. The test method is not applicable for the analysis of petroleum or petroleum products containing low molecular weight components (for example naphtha’s, reformates, gasolines) or middle distillates like Diesel and Jet fuel. Petroleum or petroleum products containing blending components which contain heteroatoms (for example alcohols, ethers, acids, or esters) or residue are not to be analysed by this test method. NOTE For the purposes of this document, the terms “% (m/m)” and “% (V/V)” are used to represent respectively the mass fraction and the volume fraction. WARNING — The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.

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prEN ISO 27917 Viešoji apklausa

Komentavimo iki data 2026-04-30

Anglies dioksido surinkimas, transportavimas ir saugojimas. Aiškinamasis žodynas. Bendrieji terminai (ISO/DIS 27917:2026)

This document defines a list of cross-cutting terms commonly used in the field of carbon dioxide capture, transportation and geological sub-surface storage including through storage in association with enhanced oil recovery (EOR) operations. This document only deals with CO2 geological sub-surface storage. The terms are classified as follows: — general terms and definitions relating to carbon dioxide; — general terms and definitions relating to carbon dioxide capture, transportation and storage; — general terms and definitions relating to monitoring and measuring performance in carbon dioxide capture, transportation and geological storage; — general terms and definitions relating to risk; — general terms and definitions relating to relationships with stakeholders; A list of the main acronyms used is given in Annex A.

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prEN ISO 19085-3 Viešoji apklausa

Komentavimo iki data 2026-05-28

Medienos apdirbimo mašinos. Sauga. 3 dalis. Skaitmeninės gręžimo ir fasoninio frezavimo staklės (ISO/DIS 19085-3:2026)

This document gives the safety requirements and measures for numerically controlled (NC/CNC) boring machines, NC/CNC routing machines and NC/CNC boring and routing machines (as defined in 3.2, 3.3 and 3.4), capable of continuous production use, hereinafter referred to as "machines". This document deals with all significant hazards, hazardous situations and events, listed in Annex A, relevant to the machines when they are operated, adjusted and maintained as intended and under the conditions foreseen by the manufacturer including reasonably foreseeable misuse. Also, transport, assembly, dismantling, disabling and scrapping phases have been taken into account. This document is also applicable to machines fitted with one or more of the following devices/additional working units, whose hazards have been dealt with: — additional working units for sawing, sanding, assembling or dowel inserting; — fixed or movable workpiece support; — mechanical, pneumatic, hydraulic or vacuum workpiece clamping; — automatic tool change devices. It is also applicable to machines fitted with edge-banding equipment, even if the relevant specific hazards have not been dealt with. NOTE For the risk assessment needed for the edge-banding equipment, ISO 19085-17 can be useful. Machines covered in this document are designed for workpieces consisting of: — solid wood; — material with similar physical characteristics to wood (see ISO 19085-1:2021, 3.2); — gypsum boards, gypsum bounded fibreboards, cardboard; — matrix engineered mineral boards, silicate boards; — composite materials with core consisting of polyurethane or mineral material laminated with light alloy; — polymer-matrix composite materials and reinforced thermoplastic/thermoset/elastomeric materials; — aluminium light alloy profiles; — aluminium light alloy plates with a maximum thickness of 10 mm; — composite boards made from the materials listed above. This document does not deal with specific hazards related to: — use of grinding wheels; — ejection through openings guarded by curtains on machines where the height of the opening in the enclosure above the workpiece support exceeds 700 mm; — ejection due to failure of milling tools with a cutting circle diameter equal to or greater than 16 mm and sawing tools not conforming to EN 847‑1:2017 and EN 847‑2:2017; — the combination of a single machine being used with other machines (as a part of a line); — integrated workpiece loading/unloading systems (e.g. robots). This document is not applicable to: — single spindle hand fed or integrated fed routing machines; — machines intended for use in potentially explosive atmosphere; — machines manufactured prior to its publication.

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ISO/DIS 24051-1 Viešoji apklausa

Komentavimo iki data 2026-05-27

Medicinos laboratorijos. 1 dalis. Bendrieji dirbtinio intelekto taikymo medicinos laboratorijose principai

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prEN ISO 3630-1 Viešoji apklausa

Komentavimo iki data 2026-04-30

Odontologija. Endodontiniai instrumentai. 1 dalis. Bendrieji reikalavimai (ISO/DIS 3630-1:2026)

This document specifies general requirements and test methods for endodontic instruments used for endodontic purposes, e.g. enlargers, compactors, accessory instruments, shaping and cleaning instruments, and a numeric coding system. In addition, it covers general size designations, color-coding, packaging, and identification symbols.

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prEN 17758 Viešoji apklausa

Komentavimo iki data 2026-05-05

Trąšos ir kalkinimo medžiagos. Chloridų kiekio nustatymas potenciometrinio titravimo metodu

This document specifies a method for the determination of the chloride content in organic fertilizers, organo-mineral fertilizers, inorganic fertilizers and liming materials by potentiometric titration. This document is applicable to fertilizing product blends, where a blend is a mix of at least two of the following components, fertilizers and liming materials, and where the following category, organic fertilizers, organo-mineral fertilizers, inorganic fertilizers or liming materials, is the highest % in the blend by mass or volume, or in the case of liquid form, by dry mass. If organic fertilizers, organo-mineral fertilizers, inorganic fertilizers, or liming materials is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. NOTE Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

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EN 1999-1-1:2023/prA1 Viešoji apklausa

Komentavimo iki data 2026-05-28

Eurokodas 9. Aliumininių konstrukcijų projektavimas. 1-1 dalis. Bendrosios taisyklės

EN 1999-1-1 gives basic design rules for structures made of wrought aluminium alloys and limited guidance for cast alloys (see Clause 5 and Annex C). This document does not cover the following, unless otherwise explicitly stated in this document: - members with material thickness less than 0,6 mm; - welded members with material thickness less than 1,5 mm; - connections with: - steel bolts and pins with diameter less than 5 mm; - aluminium bolts and pins with diameter less than 8 mm; - rivets and thread forming screws with diameter less than 3,9 mm.

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prEN 12258-1 Viešoji apklausa

Komentavimo iki data 2026-06-07

Aliuminis ir aliuminio lydiniai. Terminai ir apibrėžtys. 1 dalis. Bendrieji terminai

This European Standard defines general terms relating to products of aluminium and aluminium alloys which are helpful for communication within the aluminium industry and with its customers . It includes terms dealing with aluminium products, processing, sampling and testing, product characteristics and different types of visual quality characteristics. It does not include terms dealing with bauxite mining, alumina and anode production and aluminium smelting. This European Standard tries to adhere as closely as possible to the terms and definitions used in other standards or documents. NOTE For materials other than aluminium, different definitions can apply to terms which are defined in this document. This European Standard tries to follow the "common language" as it is used in native English speaking countries, without giving preference to specific idioms of any one of these counties. In cases where in different English-speaking countries different terms are used for the same concept or different concepts refer to an identical term, the appropriate explanations are given.

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EN ISO 10156:2017/prA1 Viešoji apklausa

Komentavimo iki data 2026-04-30

Dujų balionai. Dujos ir dujų mišiniai. Užsiliepsnojimo potencialo ir oksidacijos gebos nustatymas, skirtas balionų čiaupų atvamzdžiams parinkti. 1 keitinys (ISO 10156:2017/DAM 1:2026)

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prEN ISO 3843 Viešoji apklausa

Komentavimo iki data 2026-04-28

Odontologija. Odontologiniai tvirtikliai. Įdėjimo ir išėmimo jėgų matavimas (ISO/DIS 3843:2026)

This document specifies a test method for measuring the forces needed for the placement and removal of dental attachments (frictional retention elements of ball head-, snap-on, prefabricated telescopic and bar systems used for the attachment, support and stabilization of crowns and bridges, single attachments, removable partial dentures, complete dentures, and other superstructures on dental implant systems (including monopart implants)and, if not other justified, on natural teeth and root post copings). If not otherwise justified, this document can also be used for tests on custom-made or patient matched devices (e.g. laboratory manufactured). This test method is not applicable to retention devices for which normal placement and removal requires any off-axis rotation for the path of least resistance. This test method is not applicable to dental magnetic attachments, these are specified in ISO 13017.

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EN 1999-1-5:2023/prA1 Viešoji apklausa

Komentavimo iki data 2026-05-28

Eurokodas 9. Aliumininių konstrukcijų projektavimas. 1-5 dalis. Kevalinės konstrukcijos

1.1 Scope of EN 1999-1-5 (1) EN 1999-1-5 applies to the structural design of aluminium structures, stiffened and unstiffened, that have the form of a shell of revolution or of a round panel in monocoque structures. (2) EN 1999-1-5 covers additional provisions to those given in the relevant parts of EN 1999 for design of aluminium structures. NOTE Supplementary information for certain types of shells is given in EN 1993-1-6 and the relevant application parts of EN 1993 which include: - Part 3-1 for towers and masts; - Part 3-2 for chimneys; - Part 4-1 for silos; - Part 4-2 for tanks; - Part 4-3 for pipelines. (4) The provisions in EN 1999-1-5 apply to axisymmetric shells (cylinders, cones, spheres) and associated circular or annular plates, beam section rings and stringer stiffeners, where they form part of the complete structure. (5) Single shell panels (cylindrical, conical or spherical) are not explicitly covered by EN 1999-1-5. However, the provisions can be applicable if the appropriate boundary conditions are duly taken into account. (6) Types of shell walls covered in EN 1999-1-5 can be (see Figure 1.1): - shell wall constructed from flat rolled sheet with adjacent plates connected with butt welds, termed “isotropic”; - shell wall with lap joints formed by connecting adjacent plates with overlapping sections, termed “lap-jointed”; - shell wall with stiffeners attached to the outside, termed “externally stiffened” irrespective of the spacing of stiffeners; - shell wall with the corrugations running up the meridian, termed “axially corrugated”; - shell wall constructed from corrugated sheets with the corrugations running around the shell circumference, termed “circumferentially corrugated”. [Figure 1.1 - Illustration of cylindrical shell form] (7) The provisions of EN 1999-1-5 are intended to be applied within the temperature range defined in EN 1999-1-1. The maximum temperature is restricted so that the influence of creep can be neglected. For structures subject to elevated temperatures associated with fire, see EN 1999-1-2. (8) EN 1999-1-5 does not cover the aspect of leakage. 1.2 Assumptions (1) The general assumptions of EN 1990 apply. (2) The provisions of EN 1999-1-1 apply. (3) The design procedures are valid only when the requirements for execution in EN 1090-3 or other equivalent requirements are complied with. (4) EN 1999 is intended to be used in conjunction with: - European Standards for construction products relevant for aluminium structures; - EN 1090-1, Execution of steel structures and aluminium structures - Part 1: Requirements for conformity assessment of structural components; - EN 1090-3, Execution of steel structures and aluminium structures - Part 3: Technical requirements for aluminium structures.

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prEN ISO 12135 Viešoji apklausa

Komentavimo iki data 2026-06-07

Metalinės medžiagos. Bendrasis bandymo metodas kvazistatiniam atsparumui trūkimui nustatyti (ISO 12135:2021, įskaitant pataisytą 2022-08 versiją)

This document specifies methods for determining fracture toughness in terms of K, δ, J and R-curves for homogeneous metallic materials subjected to quasistatic loading. Specimens are notched, precracked by fatigue and tested under slowly increasing displacement. The fracture toughness is determined for individual specimens at or after the onset of ductile crack extension or at the onset of ductile crack instability or unstable crack extension. In cases where cracks grow in a stable manner under ductile tearing conditions, a resistance curve describing fracture toughness as a function of crack extension is measured. In some cases in the testing of ferritic materials, unstable crack extension can occur by cleavage or ductile crack initiation and growth, interrupted by cleavage extension. The fracture toughness at crack arrest is not covered by this document. Special testing requirements and analysis procedures are necessary when testing weldments, and these are described in ISO 15653 which is complementary to this document. Statistical variability of the results strongly depends on the fracture type, for instance, fracture toughness associated with cleavage fracture in ferritic steels can show large variation. For applications that require high reliability, a statistical approach can be used to quantify the variability in fracture toughness in the ductile-to-brittle transition region, such as that given in ASTM E1921. However, it is not the purpose of this document to specify the number of tests to be carried out nor how the results of the tests are to be applied or interpreted.

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prEN IEC 60704-2-8:2026 Viešoji apklausa

Komentavimo iki data 2026-05-01

Buitiniai ir panašios paskirties elektriniai prietaisai. Ore sklindančio akustinio triukšmo nustatymo taisyklės. 2-8 dalis. Ypatingieji reikalavimai, keliami elektrinėms skutimosi mašinėlėms ir plaukų kirpimo mašinėlėms

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