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: 250
1 2 3 … 10 arrow-next
prEN ISO 16383-2 Public enquiry
Comment end date 2026-03-25
Geotechnical investigation and testing - Laboratory testing of rock - Part 2: Determination of density and open porosity (ISO/DIS 16383-2:2026)

This document will specify methods for the determination of the bulk density of rock. This document is applicable to the laboratory determination of the bulk density of rock samples

Read draft and comment View
prEN IEC 60601-2-66:2026 Public enquiry
Comment end date 2026-03-25
Medical electrical equipment - Part 2-66: Particular requirements for the basic safety and essential performance of hearing aids and hearing aid systems
Read draft and comment View
EN IEC 62115:2020/prAB:2026 Public enquiry
Comment end date 2026-03-25
Electric toys - Safety

The standard deals with safety requirements for electric toys that have at least one function dependant on electricity, electric toys being any product designed or intended, whether or not exclusively, for use in play by children under 14 years of age.

Read draft and comment View
prEN IEC 62037-7:2026 Public enquiry
Comment end date 2026-03-25
Passive RF and microwave devices, intermodulation level measurement - Part 7: Field measurements of passive intermodulation
Read draft and comment View
prEN IEC 60669-2-1:2026 Public enquiry
Comment end date 2026-03-25
Switches for household and similar fixed electrical installations - Part 2-1: Particular requirements - Electronic control devices
Read draft and comment View
prEN ISO 12217-2 Public enquiry
Comment end date 2026-03-24
Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats (ISO/DIS 12217-2:2026)

This document specifies methods for evaluating the stability and buoyancy of intact (i.e. undamaged) boats. The flotation characteristics of boats susceptible to swamping are also encompassed. The evaluation of stability and buoyancy properties using this document will enable the boat to be assigned to a design category (A, B, C or D) appropriate to its design and maximum load. This document is principally applicable to boats propelled primarily by sail (even if fitted with an auxiliary engine) of 6 m up to and including 24 m hull length. However, it can also be applied to boats less than 6 m if they are habitable multihulls or can be applied if they do not attain the desired design category specified in ISO 12217‑3 and they are decked and have quick-draining recesses which comply with ISO 11812. In relation to habitable multihulls, this document includes assessment of susceptibility to inversion, definition of viable means of escape and requirements for inverted flotation. This document excludes: —    inflatable and rigid-inflatable boats covered by the ISO 6185 series, except for references made in the ISO 6185 series to specific clauses of the ISO 12217 series; —    gondolas and pedalos; —    surfboards including sailing surfboards; and —    hydrofoils and foil stabilized boats when not operating in the displacement mode. NOTE       Displacement mode means that the boat is only supported by hydrostatic forces. It does not include or evaluate the effects on stability of towing, fishing, dredging or lifting operations, which need to be separately considered if appropriate.

Read draft and comment View
prEN ISO 12217-1 Public enquiry
Comment end date 2026-03-24
Small craft - Stability and buoyancy assessment and categorization - Part 1: Non-sailing boats (ISO/DIS 12217-1:2026)

This document specifies methods for evaluating the stability and buoyancy of intact (i.e. undamaged) boats. The flotation characteristics of boats susceptible to swamping are also encompassed. The evaluation of stability and buoyancy properties using this document will enable the boat to be assigned to a design category (A, B, C or D) appropriate to its design and maximum total load. This document is principally applicable to boats propelled by human or mechanical power of 6 m up to 24 m hull length. However, it can also be applied to boats of under 6 m if they do not attain the desired design category specified in ISO 12217‑3 and they are decked and have quick-draining recesses which comply with ISO 11812. In relation to habitable multihulls, this document includes assessment of susceptibility to inversion, definition of viable means of escape and requirements for inverted flotation. This document excludes: —    inflatable and rigid-inflatable boats covered by the ISO 6185 series, except for references made in the ISO 6185 series to specific clauses of the ISO 12217 series; —    personal watercraft covered by ISO 13590 and other similar powered craft; —    gondolas and pedalos; —    sailing surfboards; —    surfboards, including powered surfboards; —    hydrofoils and hovercraft when not operating in the displacement mode; and —    submersibles. NOTE       Displacement mode means that the boat is only supported by hydrostatic forces. It does not include or evaluate the effects on stability of towing, fishing, dredging or lifting operations, which need to be separately considered if appropriate.

Read draft and comment View
prEN 14392 Public enquiry
Comment end date 2026-03-24
Aluminium and aluminium alloys - Requirements for anodised products for use in contact with foodstuff

This document specifies requirements for coloured or uncoloured anodic oxidation coatings on wrought and cast products in aluminium and aluminium alloys for use in contact with food. These requirements cover the chemical composition of the bath, the sealing and the properties of the obtained anodic oxidation coatings. They do not cover dyestuffs and pigments but do cover the metallic deposits produced by electrolytic colouring.

Read draft and comment View
prEN 131-9 Public enquiry
Comment end date 2026-03-24
Ladders - Part 9: Step stools

This document specifies the requirements for step stools. This includes design characteristics, dimensions, materials, performance requirements, test methods and the declaration of suitability of use. This document is not applicable to ladders and stepladders as defined by EN 131-1. NOTE This document is applicable to both side ascendable ladder type step stools with an allowable standing height up to 1 m. Both side ascendable step ladders with an allowable standing height greater than 1 m belong to the scope of in EN 131-1. This document is applicable to step stools designed for general professional and non-professional use. This document is not applicable to step stools which by their design and instructions are intended and limited only for a specific professional use and as a result are not for general professional or non-professional use. This document is not applicable to products intended for use by children falling under the scope of CEN/TC 252 "Child care articles" or toys falling under the scope of CEN/TC 52 "Safety of toys". The products are intended to be used by one person only, requirements are based upon a maximum total load of 150 kg.

Read draft and comment View
prEN 15475 Public enquiry
Comment end date 2026-03-24
Inorganic fertilizers - Titrimetric determination of ammoniacal nitrogen

This document specifies a method for the titrimetric determination of the ammoniacal nitrogen content in inorganic fertilizers (including compound fertilizers), in which nitrogen is found exclusively either in the form of ammonium salts or ammonium salts together with nitrates. 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 fertilizers are 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. In the case of application to ammonium nitrate fertilizers of high nitrogen content, this document is not applicable to fertilizer product blends. This document is not applicable to fertilizers or fertilizer product blends containing urea, cyanamide, nutrient polymers or other organic nitrogenous compounds.

Read draft and comment View
EN 15839:2024/prA1 Public enquiry
Comment end date 2026-03-24
Railway applications - Testing and simulation for the acceptance of running characteristics of railway vehicles - Running safety under longitudinal compressive force

This document defines the assessment of endurable longitudinal compressive force (LCF) of a vehicle. The endurable longitudinal compressive force is a parameter depending on the vehicle design. It is used to estimate the risk of derailment of a vehicle as a result of being subjected to longitudinal compressive force, under operating conditions. NOTE 1 As operating conditions can vary in several aspects (infrastructure, train configurations etc.), this document defines uniform assessments of endurable longitudinal compressive force per vehicle in specific operating conditions. The main assessment of endurable longitudinal compressive force for conventional trains is derived from UIC 530-2:2011, which is based on practical tests performed in ERRI-B12. Assessments of endurable longitudinal compressive force for high-capacity trains in this document are required by the methodology of IRS 40421. IRS 40421 assesses operational train parameters. This document applies to the following types of vehicles: - single wagons; - permanently coupled units with standard ends between the vehicles; - permanently coupled units with diagonal buffers and screw couplers between the vehicles; - permanently coupled units with a bar coupler between the vehicles; - articulated units with 2-axle bogies; - wagons with 3-axle bogies; - low-floor wagons with eight or more axles (e.g. rolling road wagon); - vehicles with centre couplers; - railbound construction and maintenance machines as defined in EN 14033-1:2017. NOTE 2 This document defines the acceptance process to be followed by vehicles that are operated in a way that high longitudinal compressive force occur in the trains due to their operational environment (e.g. train composition, brake mode, track layout). The following vehicles are not in the scope of this document: - locomotives and passenger rolling stocks; - vehicles that are only operated in passenger trains. NOTE 3 Locomotives, passenger rolling stocks and vehicles operated in passenger trains only are not in the scope of this document as they either are subject to low longitudinal compressive force in operation or have sufficient endurable longitudinal compressive force due to their axle load. Acceptance criteria and test conditions as well as conditions for simulation are defined in this document. Conditions for dispensation of the assessment of the endurable longitudinal compressive force are also defined in this document. This document applies principally to vehicles which operate without restrictions on tracks with a gauge of 1 435 mm in Europe. NOTE 4 The influence on railway systems using other gauges is not sufficiently understood to extend the scope of this document to gauges other than 1 435 mm. NOTE 5 For wagons with centre couplers, a need for assessment of derailment risk due to Longitudinal Forces on other gauges (1 524 mm, 1 600 mm, 1 668 mm) has been expressed. The influence on railway systems using other gauges is not sufficiently understood. This document only introduces some notions to assess it independently from the gauge.

Read draft and comment View
EN 12520:2024/prA1 Public enquiry
Comment end date 2026-03-24
Furniture - Safety, strength and durability - Requirements for domestic seating

This document specifies the minimum requirements for the safety, strength and durability of all types of domestic seating for adults. It also specifies additional test methods for seat side-to-side durability as well as finger entrapment and shear and compression. It does not apply to ranked seating, seating for non-domestic use, office work chairs, chairs for educational institutions, outdoor seating and to links for linked seating for which European Standards exist. It does not include requirements for the durability of upholstery materials, castors, reclining and tilting mechanisms and seat height adjustment mechanisms. It does not include requirements for electrical safety. It does not include requirements for the resistance to ageing, degradation, flammability and ergonomics. The requirements are based on use by persons weighing up to 110 kg. Annex A (normative) specifies the seat side-to-side durability test in D-G points. Annex B (informative) gives rationales for some of the tests referred to in Table 1. Annex C (normative) specifies the test methods for finger entrapment and shear and compression. Annex D (normative) specifies the seat loading point for seating with suspended flexible material.

Read draft and comment View
EN 12521:2023/prA1 Public enquiry
Comment end date 2026-03-24
Furniture - Safety, strength and durability - Requirements for domestic tables

This document specifies the minimum requirements for the safety, strength and durability of all types of domestic tables intended for use by adults, including those with glass in their construction. It also contains additional test methods in Annex A and Annex B. It does not apply to office tables and office desks, tables for non-domestic use, tables for educational institutions or outdoor tables for which European Standards exist. It does not apply to trestle tables. With the exception of stability tests, this document does not provide assessment of the suitability of any storage features included in domestic tables. It does not include requirements for electrical safety. It does not include requirements for the resistance to ageing and degradation. Annex A (normative) contains test methods for finger entrapment. Annex B (informative) contains a table top deflection test. Annex C (informative) contains a rationale.

Read draft and comment View
prEN 16630 Public enquiry
Comment end date 2026-03-24
Permanently installed outdoor fitness equipment - Safety requirements and test methods

This document specifies general safety requirements for the manufacture, installation, inspection and maintenance of permanently installed, freely accessible outdoor fitness equipment. This document does not cover electrically driven equipment, functional training facilities (typically with unrestrained weights) nor military style obstacle courses with restricted access. The equipment is intended for youths and adults or users having an overall height greater than 1 400 mm to promote fitness by using the equipment to exercise. Equipment covered by this document is not playground equipment for children (EN 1176 series [1]), indoor stationary training equipment (EN ISO 20957 series [2], EN 957 6) or free access multi-sports equipment (EN 15312 [3]) even if it meets the requirements of each of these standards. NOTE In this document “permanently installed outdoor fitness equipment” is simply called “fitness equipment”.

Read draft and comment View
prEN 17248 Public enquiry
Comment end date 2026-03-24
District heating and district cooling pipe systems - Terms and definitions

This document compiles a vocabulary of terms, with their definitions, applied in the field of district heating and district cooling systems.

Read draft and comment View
prEN 868-8 Public enquiry
Comment end date 2026-03-24
Packaging for terminally sterilized medical devices - Part 8: Re-usable sterilization containers for steam sterilizers conforming to EN 285 - Requirements and test methods

This document specifies test methods and values for re-usable containers used as sterile barrier systems for terminally sterilized medical devices. These containers are intended to be used in large steam sterilizers as specified in EN 285. Other than the general requirements as specified in EN ISO 11607-1 and EN ISO 11607-2, this part of EN 868 series specifies materials, test methods and values that are specific to the products covered by this document. This document does not cover additional materials and/or accessories inside the sterile barrier system in order to ease the organization, drying or aseptic presentation (e.g. inner wrap, indicators, packing lists, mats, instrument organizer sets, tray liners or an additional envelope around the medical device).

Read draft and comment View
prEN 868-10 Public enquiry
Comment end date 2026-03-24
Packaging for terminally sterilized medical devices - Part 10: Adhesive coated nonwoven materials of polyolefins - Requirements and test methods

This document specifies test methods and values for sealable adhesive coated nonwoven materials of polyolefins, manufactured from nonwovens specified in EN 868-9 used for single-use sterile barrier systems and/or packaging systems for terminally sterilized medical devices. Other than the general requirements as specified in EN ISO 11607-1 and EN ISO 11607-2, this part of EN 868 series specifies materials, test methods and values that are specific to the products covered by this document.

Read draft and comment View
prEN 868-9 Public enquiry
Comment end date 2026-03-24
Packaging for terminally sterilized medical devices - Part 9: Uncoated nonwoven materials of polyolefines - Requirements and test methods

This document specifies test methods and values for uncoated nonwoven materials of polyolefins used for single-use sterile barrier systems and/or packaging systems for terminally sterilized medical devices. Other than the general requirements as specified in EN ISO 11607-1 and EN ISO 11607-2, this part of EN 868 series specifies materials, test methods and values that are specific to the products covered by this document.

Read draft and comment View
prEN ISO 13760 Public enquiry
Comment end date 2026-03-24
Plastics pipes for the conveyance of fluids under pressure - Miner's rule - Calculation method for cumulative damage (ISO/DIS 13760:2026)

In general terms, Miner’s rule is a common approach to calculate how the accumulation of a specific load that varies over time effects the time until failure. This international standard specifies the application of Miner’s rule for calculating the design time until failure of plastics pipes and piping systems of plastics materials under varying, but known, load conditions. Miner’s rule can also be applied reciprocally to calculate the tolerable load levels along a desired design time. This international standard specifies particularly the application of Miner’s rule to calculate stress or pressure regimes, respectively, that are tolerable during a targeted design time for plastics or composite pipes. Further, the application of Miner’s rule on the effect of accumulated damage on polyolefins caused by oxidative attack under varying temperatures and times on the design life is specified. It is necessary to apply Miner's rule to each failure mechanism separately. Thus, for mechanical failure due to internal pressure, other failure mechanisms, such as oxidative or dehydrochlorinative degradative failure mechanisms, are to be neglected (assuming, of course, no interaction). A material may be used only when it is proven to conform to all failure mechanism criteria. NOTE Miner's rule is an empirically based procedure and is only a first approximation to reality.

Read draft and comment View
prEN ISO 18730 Public enquiry
Comment end date 2026-03-24
Anaesthetic and respiratory equipment - Waste volatile anaesthetic agent capture systems (ISO/DIS 18730:2026)

This document specifies requirements for waste volatile anaesthetic agent capture systems that may or may not include the recycling of the collected volatile anaesthetic agent for reuse. NOTE 1: Waste volatile agent capture systems, that are part of a medical gas pipeline system as specified in ISO 7396-1 [4], are outside the scope of this document. NOTE 2: Nitrous oxide is not considered to be a volatile anaesthetic agent.

Read draft and comment View
prEN IEC 61755-2-4:2026 Public enquiry
Comment end date 2026-03-20
Fibre optic interconnecting devices and passive components - Connector optical interfaces - Part 2-4: Connection parameters of non-dispersion shifted single-mode physically contacting fibres - Non-angled for reference connection applications
Read draft and comment View
prEN IEC/IEEE 62395-2:2026 Public enquiry
Comment end date 2026-03-20
Electrical resistance trace heating systems for industrial and commercial applications - Part 2: Application guide for system design, installation and maintenance

IEC/IEEE 62395-2:2024 provides detailed recommendations for the system design, installation, maintenance and repair of electrical resistance trace heating systems in industrial and commercial applications. This document does not include or provide for any applications in potentially explosive atmospheres. This standard cancels and replaces IEC 62395-2:2013. This edition constitutes a technical revision. This standard includes the following significant technical changes with respect to IEC 62395-2:2013: a) Design considerations for trace heating on sprinkler systems have been expanded and a figure has been added to illustrate how to avoid undue shadowing of spray patterns from insulated sprigs close to sprinkler heads; b) Specific details of design considerations for trace heating for emergency eyewash units and safety showers have been added.

Read draft and comment View
prEN IEC/IEEE 62395-1:2026 Public enquiry
Comment end date 2026-03-20
Electrical resistance trace heating systems for industrial and commercial applications - Part 1: General and testing requirements

IEC/IEEE 62395-1:2024 specifies requirements for electrical resistance trace heating systems and includes general test requirements. This first edition cancels and replaces the second edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes, apart from general revisions of IEC 62395-1 and harmonization with IEEE 515 [1] and IEEE 515.1 [2], with respect to the previous edition: a) Added control and monitoring requirements for fire sprinkler systems and safety showers. b) Provided a supplemental ice bath method for verification of rated output. c) Provided constructional and type test requirements for glands used to terminate heating devices to an exposed enclosure.

Read draft and comment View
EN IEC 55014-2:2021/prA1:2026 Public enquiry
Comment end date 2026-03-20
Amendment 1 - Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus - Part 2: Immunity - Product family standard
Read draft and comment View
prEN ISO 14451-10 Public enquiry
Comment end date 2026-03-19
Pyrotechnic articles - Pyrotechnic articles for vehicles - Part 10: Requirements and categorization for semi-finished products (ISO/DIS 14451-10:2026)

ISO 14451-10:2013 specifies the types and order of tests to be applied to the semi finished products and sets out the acceptance criteria and means of categorization. ISO 14451-10:2013 applies to type tests. ISO 14451-10:2013 is not applicable to articles containing military explosives or commercial blasting agents except for black powder or flash composition.

Read draft and comment View
Total records found: 250
1 2 3 … 10 arrow-next

Quick filters

Organisation
CEN Europos standartizacijos komitetas (147) ETSI Europos telekomunikacijų standartų institutas (11) IEC Tarptautinė elektrotechnikos komisija (1) CENELEC Europos elektrotechnikos standartizacijos komitetas (77) ISO Tarptautinė standartizacijos organizacija (13) LST Lietuvos standartizacijos departamentas (1)
Technical Committee
TK 1 Electronics (8) TK 4 Information technology (4) TK 5 Electrical engineering (26) TK 8 Electromagnetic compatibility (2) TK 9 Furniture (2) TK 13 Agricultural engineering (1) TK 15 Cereals, cereal products, bread and animal feeding stuffs (1) TK 17 Wood (2) TK 18 Telecommunications (11) TK 19 Concrete and reinforced concrete (1) TK 20 Toys, child use articles, sports and other recreational equipment (3) TK 22 Fire safety (3) TK 31 Acoustics (1) TK 32 Health (15) TK 35 Safety of machinery (2) TK 36 Environmental protection (5) TK 39 Protection (3) TK 41 Welding (1) TK 43 Railway traffic (5) TK 45 Electric power (15) TK 48 Jewellery (6) TK 49 Metallic materials (3) TK 50 Heating and Ventilation Systems (2) TK 51 Food analysis- Horizontal methods (5) TK 56 Metal liquid tanks and industrial pipelines. (3) TK 57 Fertilizers (6) TK 59 Geotechnics (2) TK 63 Gas cylinders and cryogenic vessels (6) TK 66 Non-destructive testing (3) TK 68 Plastics (9) TK 76 Explosive atmospheres (2) TK 77 Lifts (2) TK 79 IT security techniques (9) TK 80 Road transport and traffic telematics (11) TK 82 Safety of trackless overground vehicles (1) TK 89 Risk management (2) TK 99 Health Informatics (1)
ICS
Kiti su dirvožemio kokybe susiję standartai (1) Biologinės dirvožemio savybės (1) Žemės ūkis (Žodynai) (1) Hidrologinės dirvožemio savybės (1) Acoustics in building. Sound insulation (1) Additive manufacturing (1) Advanced ceramics (2) Aerospace electric equipment and systems (6) Agricultural machines and equipment in general (1) Alarm and warning systems (1) Aluminium products (1) Anaesthetic, respiratory and reanimation equipment (3) Application of information technology in general (1) Automatic controls for household use (1) Biobased products (1) Biological evaluation of medical devices (1) Bolts, screws, studs (1) Cableway equipment (2) Cereals, pulses and derived products (1) Cloud computing (2) Company organization and management in general (1) Components and accessories in general (1) Concrete and concrete products (1) Cranes (1) Cryogenic vessels (2) Disinfectants and antiseptics (1) Domestic safety (5) Earthworks. Excavations. Foundation construction. Underground works (1) Electric furnaces (2) Electric heaters (3) Electric road vehicles (1) Electric tools (3) Electrical and electronic equipment (1) Electrical apparatus for explosive atmospheres (2) Electrical engineering in general (3) Electricity supply systems (1) Electroacoustics (2) Electronic components in general (1) Emission (1) Enamels (2) Environmental testing (1) Equipment for petroleum and natural gas industries in general (3) Examination of physical properties of water (1) Examination of water in general (1) Explosives. Pyrotechnics and fireworks (5) External sewage systems (1) Fertilizers (3) Fibre optic interconnecting devices (3) Fibre optic systems in general (1) Fire protection (2) Fire-resistance of building materials and elements (1) Fissile materials and nuclear fuel technology (1) Fixed resistors (1) Floor coverings (2) Fuel systems (1) Furniture (2) Fuses and other overcurrent protection devices (1) Gas cylinders (2) Gas pressure vessels, gas cylinders (1) Gases for industrial application (1) Geometrical Product Specification (GPS) (1) Governance and ethics (1) High voltage switchgear and controlgear (1) Hoses and hose assemblies (1) Identification cards. Chip cards. Biometrics (1) Immunity (1) Indoor sports equipment (2) Information technology (Vocabularies) (1) Insulating materials in general (1) Insulation systems (1) IT applications in health care technology (1) IT applications in transport (11) IT Security (10) Jewellery (6) Ladders (1) Lamps in general (1) Low voltage switchgear and controlgear (2) Management systems (3) Materials and articles in contact with foodstuffs (2) Medical equipment in general (1) Medical microbiology (1) Microbiology of water (1) Milk and milk products in general (2) Miscellaneous domestic and commercial equipment (3) Non-destructive testing (3) Non-destructive testing of metals (1) Other semiconductor devices (1) Outdoor and water sports equipment (1) Petroleum products and natural gas handling equipment (1) Piezoelectric devices (1) Pipeline components and pipelines in general (6) Pipelines and its parts for district heat (1) Pipelines and its parts for external sewage systems (2) Plastics pipes (2) Power transmission and distribution lines (2) Printed circuits and boards (1) Protection of and in buildings (1) Public buildings (2) Radiation measurements (1) Radiographic equipment (1) Railway rolling stock in general (2) Reactor engineering (1) Rectifiers. Converters. Stabilized power supply (2) Relays (1) Safety of machinery (1) Sensory analysis (2) Small craft (2) Small kitchen appliances (2) Software (1) Solar energy engineering (1) Solid fuels (1) Sterilized packaging (3) Substations. Surge arresters (1) Surface preparation (2) Surface treatment (1) Switches (1) Syringes, needles and catheters (4) TELECOMMUNICATIONS. AUDIO AND VIDEO ENGINEERING (11) Telecontrol. Telemetering (1) Temperature-measuring instruments (1) Trailing stock (1) Valves in general (1) Washers and other locking elements (1) Wind turbine energy systems (1) Wood-based panels in general (2)