GDPR

projektai-lsd Lithuanian Standards Board
Portal for draft standards

Extended search

till

Results

Showing:
prEN ISO 11666 Public enquiry
Comment end date 2026-11-12
Non-destructive testing of welds - Ultrasonic testing - Acceptance levels (ISO/DIS 11666:2026)

ISO 11666:2018 specifies two ultrasonic acceptance levels known as acceptance level 2 (AL 2) and acceptance level 3 (AL 3) for full penetration welded joints in ferritic steels, which correspond to ISO 5817:2014, quality levels B and C. An acceptance level corresponding to ISO 5817:2014, quality level D is not included in this document, as ultrasonic testing is generally not requested for this weld quality. These acceptance levels are applicable to testing carried out in accordance with ISO 17640. ISO 11666:2018 applies to the testing of full penetration ferritic steel welds, with thicknesses from 8 mm to 100 mm. It can also be used for other types of welds, materials and thicknesses, provided the tests have been performed with necessary consideration of the geometry and acoustic properties of the component, and an adequate sensitivity can be employed to enable the acceptance levels of this document to be applied. The nominal frequency of probes used in this document is between 2 MHz and 5 MHz, unless attenuation or requirements for higher resolution call for other frequencies. It is important to consider the use of these acceptance levels in conjunction with frequencies outside this range carefully.

prEN ISO 3821 Public enquiry
Comment end date 2026-11-26
Gas welding equipment - Rubber hoses for welding, cutting and allied processes (ISO/DIS 3821:2026)

This document specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes. This document specifies requirements for rubber hoses for normal duty of 2 MPa (20 bar) and light duty [limited to hoses for maximum working pressure of 1 MPa (10 bar) and with bore up to and including 6,3 mm]. This document applies to hoses operated at temperatures −20 °C to +60 °C and used in: — gas welding and cutting; — arc welding under the protection of an inert or active gas; — processes allied to welding and cutting, in particular, heating, brazing, and metallization. This document does not specify requirements for hose assemblies; these are detailed in ISO 8207. This document applies neither to thermoplastics hoses nor to hoses used for high pressure [>0,15 MPa (>1,5 bar)] acetylene.

prEN ISO 9455-8 Public enquiry
Comment end date 2026-11-12
Soft soldering fluxes - Test methods - Part 8: Determination of zinc content (ISO/FDIS 9455-8:2026)

Describes the principle, the reagents and materials, the apparatus, the test procedure, the calculation of results, the precision and the contents of the test report.

prEN ISO 14114 Public enquiry
Comment end date 2026-10-29
Gas welding equipment - Acetylene manifold systems for welding, cutting and allied processes - General requirements (ISO/DIS 14114:2026)

ISO 14114:2017 applies to acetylene cylinder manifold systems extending from the cylinder valve or the bundle outlet connections to the outlet connection of the main shut-off valve. It specifies requirements for design, materials and testing of cylinder manifold systems for the supply of acetylene for use in welding, cutting and allied processes. ISO 14114:2017 applies to acetylene cylinder manifold systems in which acetylene single cylinders or acetylene bundles are coupled for collective gas withdrawal. NOTE National regulations exist regarding limitation of the amount of single cylinders/bundles of acetylene on a single location (e.g. in warehouse or connected to a manifold system). ISO 14114:2017 also covers a test procedure for decomposition blockers.

prEN ISO 20601 Public enquiry
Comment end date 2026-11-14
Non-destructive testing of welds - Ultrasonic testing - Phased array technique for thin-walled steel components (ISO/DIS 20601:2026)

This document specifies the application of phased array technology for the semi- or fully automated ultrasonic testing of fusion-welded joints in steel parts with thickness values between 3,2 mm and 8,0 mm. This meets the typical range of tube wall thickness values in boilers, which is an important application of this testing technology. The minimum and maximum value of the wall thickness range can be exceeded, when testing level "D" of this document is applied. This document applies to full penetration welded joints of simple geometry in plates, tubes, pipes, and vessels, where both the weld and parent material are low-alloy and/or fine grained steel. NOTE "Semi-automated testing" encompasses a controlled movement of one or more probes on the surface of a component along a fixture (guidance strip, ruler, etc.), whereby the probe position is unambiguously measured with a position sensor. The probe is moved manually. "Fully automated testing" includes mechanized propulsion in addition. Where material-dependent ultrasonic parameters are specified in this document, they are based on steels having a sound velocity of (5 920 ± 50) m/s for longitudinal waves, and (3 255 ± 30) m/s for transverse waves. It is necessary to take this fact into account when testing materials with a different velocity. This document provides guidance on the specific capabilities and limitations of phased array technology for the detection, location, sizing and characterization of discontinuities in fusion-welded joints. Ultrasonic phased array technology can be used as a stand-alone technique or in combination with other non-destructive testing (NDT) methods or techniques, during manufacturing and testing of new welds/repair welds (pre-service testing). This document specifies two testing levels: — level "C" for standard situations; — level "D" for different situations/special applications. This document describes assessment of discontinuities for acceptance purposes based on: — height and length; — amplitude (equivalent reflector size) and length; — go/no-go decision. This document does not include acceptance levels for discontinuities.

prEN ISO 23279 Public enquiry
Comment end date 2026-11-12
Non-destructive testing of welds - Ultrasonic testing - Characterization of discontinuities in welds (ISO/DIS 23279:2026)

ISO 23279:2017 specifies how to characterize indications from discontinuities by classifying them as originating from planar or non-planar embedded discontinuities. This procedure is also suitable for indications from discontinuities that break the surface after removal of the weld reinforcement.

prEN 14359 Public enquiry
Comment end date 2026-11-21
Gas-loaded accumulators for fluid power applications

1.1 This document specifies the requirements for materials, design, manufacture, testing inspection, safety equipment configuration and documentation (including instructions for first operation), for commonly-used types of gas-loaded accumulators and pressure vessels used to provide additional gas capacity for fluid power applications (see 1.2). 1.2 This document applies to the following types of components, defined as the pressure-containing envelope of gas-loaded accumulators: - bladder type; - diaphragm type; - piston type; - transfer type; - pressure vessels used to provide additional gas capacity. They consist of one or several parts joined together by a variety of mechanical means and by welding. 1.3 This document applies to gas-loaded accumulators which operate with the following conditions: - subject to an internal gauge pressure greater than 0,5 bar; - working temperature not lower than –50 °C and not higher than +200 °C; - containing all liquids and gases as defined in the European Legislation on Pressure Equipment, see Note. NOTE When the accumulator contains Group 1 liquids or gases, consideration relating to risks other than those required by the European Legislation on Pressure Equipment are not covered by this document and will be assessed separately.

prEN ISO 17640 Public enquiry
Comment end date 2026-11-12
Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO/DIS 17640:2026)

This document specifies techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials of thickness ≥8 mm which exhibit low ultrasonic attenuation (especially that due to scatter) at object temperatures from 0 °C to 60 °C. It is primarily intended for use on full penetration welded joints where both the welded and parent material are ferritic. Where material-dependent ultrasonic values are specified in this document, they are based on steels having an ultrasonic sound velocity of (5 920 ± 50) m/s for longitudinal waves and (3 255 ± 30) m/s for transverse waves. This document specifies four testing levels, each corresponding to a different probability of detection of imperfections. Guidance on the selection of testing levels A, B, and C is given in Annex A. This document specifies that the requirements of testing level D, which is intended for special applications, be in accordance with general requirements. Testing level D can only be used when defined by specification. This includes tests of metals other than ferritic steel, tests on partial penetration welds, tests with automated equipment, and tests at object temperatures outside the range 0 °C to 60 °C. This document can be used for the assessment of discontinuities, for acceptance purposes, by either of the following techniques: a) evaluation based primarily on length and echo amplitude of the discontinuity; b) evaluation based on characterization and sizing of the discontinuity by probe movement techniques.

Quick filters

Technical Committee
TK 1 Electronics (34) TK 4 Information technology (4) TK 5 Electrical engineering (42) TK 9 Furniture (2) TK 13 Agricultural engineering (4) TK 18 Telecommunications (15) TK 20 Toys, child use articles, sports and other recreational equipment (1) TK 21 Textiles and personal protective equipment (2) TK 22 Fire safety (7) TK 23 Ceramic tiles, masonry and natural stones (1) TK 24 Quality management and quality assurance (2) TK 25 Matrix, gypsum and gypsum based products (1) TK 26 Thermal insulation materials (1) TK 29 Water supply (16) TK 32 Health (10) TK 35 Safety of machinery (2) TK 36 Environmental protection (2) TK 38 Building constructions (14) TK 39 Protection (2) TK 40 Petroleuml, petroleum products, lubricants and alternative fuels (2) TK 41 Welding (8) TK 45 Electric power (6) TK 46 Roofs and building waterproof isolation (6) TK 49 Metallic materials (6) TK 50 Heating and Ventilation Systems (2) TK 51 Food analysis- Horizontal methods (1) TK 56 Metal liquid tanks and industrial pipelines (1) TK 57 Fertilizers (3) TK 59 Geotechnics (3) TK 60 Windows and doors (4) TK 68 Plastics (7) TK 70 Pulp, paper, board, adhesives (1) TK 76 Explosive atmospheres (6) TK 77 Lifts (1) TK 79 IT security techniques (3) TK 80 Road transport and traffic telematics (1) TK 81 Conservation of cultural property (1) TK 82 Safety of trackless overground vehicles (2) TK 86 Geographic information (1) TK 87 Biotechnology (8) TK 88 Building Information Modelling (BIM) (1) TK 89 Risk management and organizational governance (1) TK 91 Asset management and technical maintenance (2) TK 94 Circural economy (1) TK 99 Health Informatics (2)
ICS
Hidrologinės dirvožemio savybės (1) Acid secondary cells and batteries (3) Adhesives (1) Aerospace electric equipment and systems (3) Alarm and warning systems (1) Alcohols. Ethers (1) Aluminium products (1) Amplifiers (3) Anaesthetic, respiratory and reanimation equipment (6) Application of information technology in general (2) Binders. Sealing materials (1) Biology. Botany. Zoology (8) Boilers and heat exchangers (1) Brazing and soldering (1) Building accessories (1) Cellular materials (1) Cement. Gypsum. Lime. Mortar (2) Chemical laboratories. Laboratory equipment (4) Chemicals for purification of water (9) Cleaning appliances (7) Cleanrooms and associated controlled environments (1) Coaxial cables. Waveguides (1) Colour coding (1) Cranes (1) Dental implants (1) Diagnostic equipment (1) Domestic safety (8) Earthworks. Excavations. Foundation construction. Underground works (3) Electric road vehicles (3) Electrical and electronic equipment (2) Electrical and electronic equipment. Control systems (1) Electrical and electronic testing (1) Electrical apparatus for explosive atmospheres (4) Electrical engineering in general (1) Electrical equipment of ships and of marine structure (1) Emission (1) Environment. Health protection. Safety (Vocabularies) (1) Environmental economics. Sustainability (1) Equipment for children (1) Exploratory, drilling and extraction equipment (2) Fertilizers (2) Fibre optic interconnecting devices (1) Fibres and cables (2) Fire protection (1) Fire-fighting (4) Fire-resistance of building materials and elements (1) Floor coverings (2) Food microbiology (1) Forensic science (1) Furniture (2) Fuses and other overcurrent protection devices (2) Gas cylinders (1) Gas heaters (1) Geometrical Product Specification (GPS) (1) Governance and ethics (1) Hand-operated tools (1) Home economics in general (2) Identification cards. Chip cards. Biometrics (1) Immunity (1) Implants for surgery, prosthetics and orthotics (1) Insulators (1) Integrated circuits. Microelectronics (2) Iron and steel pipes (1) IT applications in health care technology (1) IT applications in information, documentation and publishing (1) IT applications in science (2) IT applications in transport (1) IT Security (4) Items of art and handicrafts. Cultural property and heritage (1) Laminated sheets (1) Laundry appliances (2) Leather and furs (2) Lifts. Escalators (1) Lines, connections and circuits (1) Liquid fuels (1) Luminaires (3) Maintenance services. Facilities management (2) Mechanical testing of metals (1) Mining equipment in general (1) Miscellaneous domestic and commercial equipment (1) Multilayer applications (1) Navigation and control equipment (1) Networking (1) Non-ferrous metal pipes (2) Other fluid power system components (1) Other kitchen equipment (1) Other semiconductor devices (2) Other standards related to lamps (1) Paints and varnishes (2) Petroleum products and natural gas handling equipment (1) Pipelines and its parts for district heat (1) Plastics in general (2) Playgrounds (3) Power transmission and distribution networks in general (1) Primary cells and batteries (2) Printed circuits and boards (3) Product and company certification. Conformity assessment (1) Product life-cycles (1) Properties of surfaces (1) Protection against crime (1) Protection against falling and slipping (1) Protective clothing (1) Pumps (2) Radiographic equipment (1) Refrigerating technology (1) Reinforced plastics (1) Relays (1) RF connectors (2) Rivets (1) Road equipment and installations (1) Roofs (1) Safety of machinery (1) Seismic and vibration protection (1) Small craft (2) Smart textiles (1) Stainless steels (2) Stationary containers and tanks (1) Steel structures (3) Sterilization and disinfection in general (1) Sterilizing equipment (1) Surface preparation (4) Technical aspects (6) TELECOMMUNICATIONS. AUDIO AND VIDEO ENGINEERING (15) Telecontrol. Telemetering (1) Textile fabrics (1) Thermal and sound insulating materials (6) Thermoplastic materials (1) Timber structures (1) Transformers. Reactors (2) Ventilation and air-conditioning systems (1) Ventilators. Fans. Air-conditioners (3) Walls. Partitions. Façades (3) Water heating equipment (2) Water supply systems (7) Welded joints and welds (5) Welding equipment (2) Wires (11)