GDPR

Mandatory cookies

Mandatory cookies enable the main website functions. Without the aforementioned cookies the website cannot function properly. These cookies can be turned off only by changing the browser settings.

Statistics cookies

Analytical cookies allow us to improve the website by collecting and providing information about its usage.

Newsletter subscription

projektai-lsd Lithuanian Standards Board
Portal for draft standards
Register

List of drafts

Extended search

till

Results

Showing:
Total records found: 306
arrow-prev 1 2 3 4 5 … 13 arrow-next
prEN 12350-1 Public enquiry
Comment end date 2026-12-24
Testing fresh concrete - Part 1: Sampling and common apparatus

This document specifies two procedures for sampling fresh concrete, by composite sampling and by spot sampling. NOTE 1 The requirement for remixing the sample before tests on the fresh concrete, or before making test specimens, is included in the relevant standards. When mixing and sampling concrete is done in a laboratory, different procedures may be required. NOTE 2 In this case Clause 6, item g) applies. Additionally, this standard lists common apparatus mentioned in two or more standards of EN 12350 series and EN 12390-2.

Read draft and comment View
EN 12153:2023/prA1 Public enquiry
Comment end date 2026-11-07
Curtain walling - Air permeability - Test method

This document defines the method to be used to determine the air permeability of curtain walling, both its fixed and openable parts. It describes how the specimen shall be tested under positive and negative air pressure. This document applies to any curtain walling product as defined in EN 13830.

Read draft and comment View
prEN IEC 60598-2-3:2026 Public enquiry
Comment end date 2026-11-08
Luminaires - Part 2-3: Particular requirements - Luminaires for road and street lighting
Read draft and comment View
prEN IEC 63758-2:2026 Public enquiry
Comment end date 2026-11-22
Qi specification - Version 2.3 - Part 2: Power profiles (Fast Track)
Read draft and comment View
prEN ISO 14644-7 Public enquiry
Comment end date 2026-12-03
Cleanrooms and associated controlled environments - Part 7: Separative devices (ISO/DIS 14644-7:2026)

ISO 14644-7:2004 specifies the minimum requirements for the design, construction, installation, test and approval of separative devices, in those respects where they differ from cleanrooms as described in ISO 14644-4 and 14644-5. The application of ISO 14644-7:2004 takes into account the following limitations: user requirements are as agreed by customer and supplier; application-specific requirements are not addressed; specific processes to be accommodated in the separative-device installation are not specified; fire, safety and other regulatory matters are not considered specifically; where appropriate, national and local regulations apply. ISO 14644-7:2004 is not applicable to full-suits.

Read draft and comment View
prEN 12119 Public enquiry
Comment end date 2026-12-20
Plastics piping systems - Polyethylene (PE) valves - Test method for resistance to thermal cycling

This document specifies a test method for the evaluation of leaktightness of a valve under pressure while it is under external thermal cycling. This document is applicable to polyethylene (PE) valves and valves with PE spigot-ends having a nominal outside diameter greater than 63 mm and intended for the transport of fluids. For diameters equal to or lower than 63 mm EN 1704[1] is applicable. When specified in the product standard, this document can be applied to valves of material other than PE.

Read draft and comment View
prEN IEC 60335-2-79:2026 Public enquiry
Comment end date 2026-11-08
Household and similar electrical appliances - Safety - Part 2-79: Particular requirements for high pressure cleaners and steam cleaners

This standard deals with the safety of high-pressure cleaners without traction drive, intended for household and commercial indoor or outdoor use, having a rated pressure not less than 2,5 MPa and not exceeding 35 MPa. It also applies to steam cleaners and those parts of hot water high pressure cleaners incorporating a steam stage which have a capacity not exceeding 100 l, a rated pressure not exceeding 2,5 MPa and a product of capacity and rated pressure not exceeding 5 MPa·l. They are not equipped with a traction drive. The following power systems of the drive for the high pressure pump are covered: - mains powered motors up to a rated voltage of 250 V for single-phase machines and 480 V for other machines, - battery-operated motors, - internal combustion engines, - hydraulic or pneumatic motors. This standard does not apply to: - high pressure water jet machines having a rated pressure exceeding 35 MPa; - liquid or steam cleaners intended for domestic use (IEC 60335-2-54); - hand-held and transportable motor-operated electric tools (IEC 60745 series, IEC 61029 series, IEC 62841 series); - appliances for medical purposes (IEC 60601); - agricultural sprayers (ISO 4254-6); - non-liquid, solid abrasive cleaners; - machines designed to be part of a production process; - machines designed for use in corrosive or explosive environments (dust, vapour or gas); - machines designed for use in vehicles or on board of ships or aircraft.

Read draft and comment View
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.

Read draft and comment View
prEN IEC 61076-3-128:2026 Public enquiry
Comment end date 2026-11-15
Connectors for electrical and electronic equipment - Product requirements - Part 3-128: Rectangular connectors - Detail specification for 16-pole connectors with 3,5 A rated current, 80 V DC rated voltage and IP65 plastic housing with locking lever
Read draft and comment View
prEN 3682-002 Public enquiry
Comment end date 2026-12-05
Aerospace series - Connectors, plug and receptacle, electrical, rectangular, interchangeable insert type, rack to panel, operating temperature 150 °C continuous - Part 002: Specification of performance and contact arrangements
Read draft and comment View
prEN 10088-3 Public enquiry
Comment end date 2026-12-24
Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resistant steels for general purposes

This document specifies the technical delivery conditions for semi-finished products, hot or cold formed bars, rods, wire, sections and bright products of standard grades and special grades of corrosion resistant stainless steels for general purposes. NOTE 1 General purposes include the use of stainless steels in contact with foodstuffs. NOTE 2 For general technical delivery conditions, see EN 10021. This document does not apply to components manufactured by further processing of the product forms listed above with quality characteristics altered as a result of such further processing.

Read draft and comment View
prEN IEC 60335-2-67:2026 Public enquiry
Comment end date 2026-11-08
Household and similar electrical appliances - Safety - Part 2-67: Particular requirements for floor treatment machines, for commercial use

This standard deals with the safety of powered floor treatment machines intended for commercial indoor or outdoor use for the following applications: - scrubbing, - wet or dry pick-up, - polishing and dry buffing, - application of wax, sealing products and powder based detergents, - shampooing, - stripping, grinding and scarifying of floors with an artificial surface. These machines have a cleaning motion which is more lateral or periodic than linear. This standard applies to machines for commercial use. The following list, although not comprehensive, gives an indication of locations that are included in the scope: - public use areas such as hotels, schools, hospitals; - industrial locations, for example factories and manufacturing shops; - retail outlets, for example shops and supermarkets; - business premises, for example offices and banks; - all uses other than normal housekeeping purposes. These machines are not equipped with a traction drive. The following power systems are covered: - internal combustion engines, - mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances, - battery-operated machines. Battery-operated machines may be equipped with a built-in battery charger.

Read draft and comment View
prEN IEC 60335-2-124:2026/prAA:2026 Public enquiry
Comment end date 2026-11-15
Household and similar electrical appliances - Safety - Part 2-124: Particular requirements for commercial dry ice blasting machines

This standard deals with the safety of dry ice blasting machines intended for commercial indoor or outdoor use for the hand-guided cleaning, decoating and stripping of surfaces. The blasting machines are either equipped with containers for storage of dry ice or produce dry ice internally. These machines are not equipped with a traction drive. The following power systems are covered: - mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances, - battery-operated machines. This standard does not apply to - dry ice blasting machines with integrated generation of compressed air; - dry ice blasting machines using other transport gases besides compressed air or nitrogen; - dry ice blasting machines with nozzles being controlled by robotic arms; - spray extraction machines for commercial use (IEC 60335-2-68); - high pressure cleaners (IEC 60335-2-79); - sand blasting equipment (abrasive blasting); - hand-held and transportable motor-operated electric tools (IEC 60745 series, IEC 61029 series, IEC 62841 series); - machines designed for use in corrosive or explosive environments (dust, vapour or gas); - machines designed for use in vehicles in non-ventilated environment; - machines designed for use on board of ships or aircraft.

Read draft and comment View
prEN IEC 60076-1:2026 Public enquiry
Comment end date 2026-11-29
Power transformers - Part 1: General
Read draft and comment View
prEN IEC 60335-2-15:2026/prAA:2026 Public enquiry
Comment end date 2026-12-06
Household and similar electrical appliances - Safety - Part 2-15: Particular requirements for appliances for heating liquids

This European Standard deals with the safety of electrical appliances for heating liquids for household and similar purposes, their rated voltage being not more than 250 V including direct current (DC) supplied appliances and battery-operated appliances. Some appliances in this standard are used for heating food

Read draft and comment View
EN 14626:2024/prA1 Public enquiry
Comment end date 2026-12-27
Ambient air - Standard method for the measurement of the concentration of carbon monoxide by non-dispersive infrared spectroscopy

This European Standard specifies a continuous measurement method for the determination of the concentration of carbon monoxide present in ambient air based on the non-dispersive infrared spectroscopic measuring principle. This standard describes the performance characteristics and sets the relevant minimum criteria required to select an appropriate non-dispersive infrared spectroscopic analyser by means of type approval tests. It also includes the evaluation of the suitability of an analyser for use in a specific fixed site so as to meet the data quality requirements as specified in Annex I of Directive 2008/50/EC [1] and requirements during sampling, calibration and quality assurance for use. The method is applicable to the determination of the mass concentration of carbon monoxide present in ambient air up to 100 mg/m3 carbon monoxide. This concentration range represents the certification range for the type approval test. NOTE 1 Other ranges may be used depending on the levels present in ambient air. NOTE 2 When the standard is used for other purposes than for measurements required by Directive 2008/50/EC, the ranges and uncertainty requirements may not apply. The method covers the determination of ambient air concentrations of carbon monoxide in zones classified as rural areas, urban-background areas and traffic-orientated locations and locations influenced by industrial sources. The results are expressed in mg/m3 (at 20 °C and 101,3 kPa). NOTE 3 100 mg/m3 of CO corresponds to 86 μmol/mol of CO. This standard contains information for different groups of users. Clauses 5 to 7 and Annexes B, C and D contain general information about the principles of carbon monoxide measurement by non-dispersive infrared spectroscopic analyser and sampling equipment. Clause 8 and Annex E are specifically directed towards test houses and laboratories that perform type-approval testing of carbon monoxide analysers. These sections contain information about: − type-approval test conditions, test procedures and test requirements; − analyser performance requirements; − evaluation of the type-approval test results; − evaluation of the uncertainty of the measurement results of the carbon monoxide analyser based on the type approval test results. Clauses 9 to 11 and Annex F are directed towards monitoring networks performing the practical measurements of carbon monoxide in ambient air. These sections contain information about: − initial installation of the analyser in the monitoring network and acceptance testing; − ongoing quality assurance/quality control; − calculation and reporting of measurement results; − evaluation of the uncertainty of measurement results under practical monitoring conditions.

Read draft and comment View
prEN IEC 60335-2-72:2026/prAA:2026 Public enquiry
Comment end date 2026-11-08
Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use

his Document deals with the safety of powered ride-on and powered walk-behind machines intended for commercial indoor or outdoor use for the following applications: - sweeping, - scrubbing, - wet or dry pick-up, - polishing, - application of wax, sealing products and powder-based detergents, - shampooing of floors. These machines have a cleaning motion which is more linear than lateral or periodic. This standard applies to machines for commercial use. The following list, although not comprehensive, gives an indication of locations that are included in the scope: - public use areas such as hotels, schools, hospitals; - industrial locations, for example factories and manufacturing shops; - retail outlets, for example shops and supermarkets; - business premises, for example offices and banks; - all uses other than normal housekeeping purposes. These machines may be equipped with a traction drive system. The following power systems are covered: - internal combustion engines, - mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances, - battery-operated machines. Battery-operated machines may be equipped with a built-in battery charger. This standard does not apply to - floor treatment appliances for household use (IEC 60335-2-10); - floor treatment machines for commercial use (IEC 60335-2-67); - spray extraction machines for commercial use (IEC 60335-2-68); - wet and dry vacuum cleaners, including power brush, for commercial use (IEC 60335-2-69); - road sweepers; - machines designed for use on slopes with a gradient exceeding 20 %; - machines equipped with a power take-off (PTO); - machines designed for use in corrosive or explosive environments (dust, vapour or gas); - machines designed for picking up hazardous dusts (as defined in IEC 60335-2-69), inflammable substances, or glowing particles; - machines designed for use in vehicles or on board of ships or aircraft.

Read draft and comment View
prEN ISO 25379-2 Public enquiry
Comment end date 2026-11-19
In vitro diagnostic Next Generation Sequencing (NGS) workflows - Part 2: Human RNA examination (ISO/DIS 25379-2:2026)

This document specifies requirements and gives recommendations for next generation sequencing (NGS) workflows. This document covers the pre-examination processes, human RNA isolation, sequencing library preparation, sequencing, sequence analysis and reporting of the examination of sequences for diagnostic purposes from isolated RNA from, e.g. formalin-fixed and paraffin embedded tissues, fresh frozen tissues, fine needle aspirates (FNA), whole blood, circulating tumour cells (CTCs), exosomes and other extracellular vesicles, and circulating cell free RNA from plasma. NOTE 1 Typical applications include, but are not limited to, NGS for oncology and clinical genetics, certain single-cell analyses. This document is addressing in vitro diagnostic examinations including laboratory developed tests and is applicable to medical laboratories, molecular pathology laboratories and molecular genetic laboratories, in vitro diagnostic developers and manufacturers, biobanks as well as institutions and organizations performing biomedical research or sequencing services. This document is not applicable for in situ sequencing, forensic sequencing, sequencing of pathogens or microorganisms and microbiome analysis. NOTE 2 International, national or regional regulations or requirements or multiples of them can also apply to specific topics covered in this document.

Read draft and comment View
prEN ISO 25178-3 Public enquiry
Comment end date 2026-11-26
Geometrical product specifications (GPS) - Surface texture: Areal - Part 3: Specification operators (ISO/DIS 25178-3:2026)

This part of ISO 25178 specifies the complete specification operator for surface texture (scale limited surfaces) by areal methods.

Read draft and comment View
EN 62148-12:2004/prA2:2026 Public enquiry
Comment end date 2026-12-06
Fibre optic active components and devices - Package and interface standards - Part 12: Laser transmitters with a coaxial RF connector
Read draft and comment View
ISO/DIS 26262-4 Public enquiry
Comment end date 2026-12-18
Road vehicles — Functional safety — Part 4: Product development at the system level
Read draft and comment View
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.

Read draft and comment View
EN 1995-1-1:2025/prA1 Public enquiry
Comment end date 2026-11-12
Eurocode 5 - Design of timber structures - Part 1-1: General rules and rules for buildings

1.1 Scope of prEN 1995-1-1 (1) prEN 1995-1-1 gives general design rules for timber structures. (2) prEN 1995-1-1 also gives specific design rules for buildings and timber civil engineering works. 1.2 Assumptions (1) The assumptions of EN 1990 apply to this document. (2) prEN 1995-1-1 is intended to be used in conjunction with EN 1990, EN 1991 (all parts), EN 1998 (all parts) when timber structures are built in seismic regions.

Read draft and comment View
EN 10205:2024/prA1 Public enquiry
Comment end date 2026-12-06
Cold reduced tinmill products - Blackplate

This document specifies requirements for blackplate product in the form of coils intended for direct use and mostly for the production of electrolytically zinc coated plate, or coils electrolytically coated with either tin (tinplate) or chromium/chromium oxide (ECCS or ECCS-RC). Blackplate can be a single or double reduced product and is specified in nominal thicknesses that are multiples of 0,005 mm from typical 0,10 mm up to 0,60 mm. This document applies to coils in nominal minimum widths of 600 mm. In addition to this document, the general technical delivery conditions of EN 10021 apply. NOTE Standard width coils for specific uses, e.g. tab stock, can be slit into narrow strip for supply in coil form.

Read draft and comment View
prEN 50385:2026 Public enquiry
Comment end date 2026-12-25
Product standard to demonstrate the compliance of a base station with radiofrequency electromagnetic field exposure limits (110 MHz - 300 GHz), when placed on the market
Read draft and comment View
Total records found: 306
arrow-prev 1 2 3 4 5 … 13 arrow-next

Quick filters

Organisation
CENELEC Europos elektrotechnikos standartizacijos komitetas (121) ISO Tarptautinė standartizacijos organizacija (21) CEN Europos standartizacijos komitetas (152) ETSI Europos telekomunikacijų standartų institutas (12)
Technical Committee
TK 1 Electronics (31) TK 4 Information technology (4) TK 5 Electrical engineering (42) TK 9 Furniture (2) TK 13 Agricultural engineering (4) TK 18 Telecommunications (12) TK 19 Concrete and reinforced concrete (2) 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 (1) TK 25 Matrix, gypsum and gypsum based products (1) TK 26 Thermal insulation materials (1) TK 29 Water supply (16) TK 32 Health (8) TK 35 Safety of machinery (1) TK 36 Environmental protection (4) TK 38 Building constructions (14) TK 39 Protection (2) TK 40 Petroleuml, petroleum products, lubricants and alternative fuels (1) TK 41 Welding (9) TK 43 Railway traffic (1) TK 45 Electric power (6) TK 46 Roofs and building waterproof isolation (7) TK 49 Metallic materials (6) TK 50 Heating and Ventilation Systems (1) TK 51 Food analysis- Horizontal methods (1) TK 56 Metal liquid tanks and industrial pipelines (1) TK 57 Fertilizers (5) TK 59 Geotechnics (3) TK 60 Windows and doors (4) TK 68 Plastics (7) TK 76 Explosive atmospheres (2) 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 (11) TK 86 Geographic information (1) TK 87 Biotechnology (6) TK 89 Risk management and organizational governance (1) TK 91 Asset management and technical maintenance (1) TK 99 Health Informatics (2)
ICS
Cheminės dirvožemio charakteristikos (1) Acid secondary cells and batteries (2) Aerials (1) Aerospace electric equipment and systems (1) Alarm and warning systems (1) Aluminium products (1) Ambient atmospheres (1) Anaesthetic, respiratory and reanimation equipment (5) Application of information technology in general (2) Binders. Sealing materials (2) Biology. Botany. Zoology (6) Boilers and heat exchangers (1) Brazing and soldering (1) Building accessories (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) Concrete and concrete products (2) Dental implants (1) Diagnostic equipment (1) Domestic safety (10) Earthworks. Excavations. Foundation construction. Underground works (3) Electric road vehicles (4) Electrical and electronic equipment (10) Electrical and electronic equipment. Control systems (1) Electrical and electronic testing (1) Electrical apparatus for explosive atmospheres (1) Electrical equipment of ships and of marine structure (1) Electroacoustics (1) Emission (1) Environment. Health protection. Safety (Vocabularies) (1) Equipment for children (1) Exploratory, drilling and extraction equipment (2) Fertilizers (3) Fibre optic interconnecting devices (1) Fibres and cables (1) 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) Insulators (1) Integrated circuits. Microelectronics (2) IT applications in health care technology (1) IT applications in information, documentation and publishing (1) IT applications in science (1) 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 (1) Lifts. Escalators (1) Lines, connections and circuits (1) Liquid fuels (1) Luminaires (3) Maintenance services. Facilities management (1) Materials and components for railway engineering (1) Mechanical testing of metals (1) Mining equipment in general (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 (3) Other semiconductor devices (2) Other standards related to lamps (1) Paints and varnishes (2) Plastics in general (2) Playgrounds (3) Power transmission and distribution networks in general (1) Primary cells and batteries (1) Printed circuits and boards (2) Product life-cycles (1) Properties of surfaces (1) Protection against crime (1) Protective clothing (1) Pumps (2) Radiographic equipment (1) Refrigerating technology (1) Reinforced plastics (1) Relays (1) RF connectors (2) Road equipment and installations (1) Roofs (1) Safety of machinery (2) Seismic and vibration protection (1) Smart textiles (1) Stainless steels (4) Stationary containers and tanks (1) Steel structures (3) Steel wire, wire ropes and link chains (1) Sterilizing equipment (1) Surface preparation (2) Technical aspects (6) TELECOMMUNICATIONS. AUDIO AND VIDEO ENGINEERING (12) Telecontrol. Telemetering (1) Textile fabrics (1) Thermal and sound insulating materials (6) Thermoplastic materials (1) Timber structures (1) Transformers. Reactors (2) Valves in general (2) Ventilation and air-conditioning systems (1) Ventilators. Fans. Air-conditioners (3) Walls. Partitions. Façades (3) Wastes in general (1) Water supply systems (7) Welded joints and welds (5) Welding consumables (1) Welding equipment (2) Wires (11)