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: 251
arrow-prev 1 2 3 4 5 … 11 arrow-next
prEN 16261 Public enquiry
Comment end date 2026-04-09
Pyrotechnic articles - Fireworks, Category F4

This document specifies requirements for the construction, performance, protective packaging and labelling of Category F4 fireworks, as listed in Clauses 4, 5 and 6. This document does not apply to fireworks intended to be kept or used at temperatures below −20 °C or above 50 °C.

Read draft and comment View
prEN IEC 60793-1-50:2026 Public enquiry
Comment end date 2026-04-10
Optical fibres - Part 1-50: Measurement methods and test procedures - Damp heat (steady state) tests
Read draft and comment View
prEN IEC 60695-11-2:2026 Public enquiry
Comment end date 2026-04-01
Fire hazard testing - Part 11-2: Test flames - 1 kW pre-mixed flame - Apparatus, confirmatory test arrangement and guidance
Read draft and comment View
prEN 301 545-2 V1.5.1 (2026-01) Public enquiry
Comment end date 2026-04-12
Digital Video Broadcasting (DVB); Second Generation DVB Interactive Satellite System (DVB-RCS2); Part 2: Lower Layers for Satellite standard
Read draft and comment View
prEN 16039 Public enquiry
Comment end date 2026-04-07
Water quality - Guidance standard on assessing the hydromorphological features of lakes

This document is applicable to lakes, which are water bodies occupying one or more basins with surface areas typically greater than 1 ha (0,01 km2) and maximum depths (at mean water level) greater than 1 m. All types of permanent and temporary lakes, including natural, modified and artificial, freshwater and brackish, except for those systems which regularly connect to the sea, are included in this document. Based on these criteria, it can be estimated that there are at least 500 000 natural lakes across Europe, most of which are located in the glaciated landscapes in northern and western provinces and in Scandinavia. Lakeland districts also occur locally in areas such as large river catchments (e.g. the Danubian plain) and around the Alps. Elsewhere, naturally occurring lakes are relatively sparse and in such areas reservoirs or pits are more common. This document is designed to: a) support environmental and conservation agencies in meeting the monitoring requirements of the WFD (Article 8, Annex II and Annex V); b) generate data sets appropriate for monitoring and reporting of Natura 2000 sites designated under the Habitats Directive and the Birds Directive; c) provide information supporting other environmental reporting requirements (e.g. in relation to biodiversity or environmental impact assessment); d) support lake management and restoration initiatives. This document: e) defines the key term of ‘hydromorphology’ and other terms relating to the morphological characteristics of lakes and their hydrological regimes; f) details essential features and processes of lakes that should be characterized as part of a hydromorphological survey and for determining the hydromorphological condition of a lake; g) identifies and defines the key pressures affecting European lakes; h) provides guidance on strategies for collecting hydromorphological data depending on resources available and the anticipated use of the assessment; a hierarchy of approaches is recognized from the ‘overview method’ utilizing existing databases, maps and remote sensing data through to recognized field-based survey techniques such as Lake Habitat Survey (LHS) [3]; i) offers guidance on data presentation; j) establishes guidance on data quality assurance issues. This document does not deal with biological assessments in lakes such as the presence or absence of individual species or community composition, nor does it attempt to link specific hydromorphological features with their associated biological communities or to create a classification based on such links. However, it is relevant where plants or other organisms form significant structural elements of the habitat (e.g. a gradation from riparian to littoral vegetation). With respect to the WFD, the hydromorphological condition of a lake only contributes to its status classification at high ecological status (HES). Hydromorphological conditions are not defined for good and moderate status but shall be sufficient to support the biological elements. However, some countries are now beginning to classify lakes according to their hydromorphology. The information gathered by using this standard can provide a basis for classification, but this classification is the subject of EN 16870 and not EN 16039.

Read draft and comment View
prEN IEC 61951-1:2026 Public enquiry
Comment end date 2026-04-03
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Secondary sealed cells and batteries for portable applications - Part 1: Nickel-Cadmium
Read draft and comment View
prEN IEC 61009-1:2026 Public enquiry
Comment end date 2026-04-08
Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) - Part 1: General rules

This document gives general requirements and tests for residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (hereafter referred to as RCBOs), for rated operational voltages not exceeding 440 V AC, with rated frequencies of 50 Hz, 60 Hz or 50/60 Hz and rated currents not exceeding 125 A and rated short-circuit capacities not exceeding 25 000 A. RCBOs are intended to provide fault protection (previously referred to as protection against indirect contact), the exposed conductive parts of the installation being connected to an appropriate earth electrode. These devices are also intended to protect against overcurrents in the wiring installations of buildings and similar applications. They are also intended to be used to provide protection against fire hazards due to a persistent earth fault current. RCBOs having a rated residual operating current not exceeding 30 mA are used for fault protection and additional protection in the case of failure of the protective provisions against electric shock. This document applies to RCBOs performing simultaneously the functions of detection of the residual current, of comparison of the value of this current with the residual operating value and of opening of the protected circuit when the residual current exceeds this value. These devices also perform the function of making, carrying and breaking overcurrents under specified conditions. RCBOs are intended to be operated by ordinary or uninstructed persons and designed not to require maintenance. The requirements of this document apply for standard conditions (see 7.1). Additional requirements can be necessary for RCBOs used in locations which have severe environmental conditions. RCBOs within the scope of this document are intended for use in an environment with pollution degree 2 (see 7.3). RCBOs are suitable for isolation. Special precautions (e.g. surge protective devices) can be necessary when excessive overvoltages are likely to occur on the supply side (for example in the case of supply through overhead lines, see IEC 60364-4-44 and IEC 60364-5-53). RCBOs, with the exception of those with an uninterrupted neutral, are suitable for use in IT systems. RCBOs of the general type are resistant to current surges, including the case where surge voltages (as a result of switching transients or induced by lightning) cause loading currents in the installation without occurrence of flashover. RCBOs of type S are considered to be sufficiently resistant against unwanted tripping even if the surge voltage causes a flashover and a follow-on current occurs. This document also applies to RCBOs obtained by the assembly of an adaptable residual current device with a circuit-breaker. The mechanical assembly is intended to be effected in the factory by the manufacturer, or on site, in which case the requirements of Annex G apply. It also applies to RCBOs having more than one rated current, provided that the means for changing from one discrete rating to another is not accessible in normal service and that the rating cannot be changed without the use of a tool. Particular requirements are necessary for RCBOs intended to be used at frequencies other than 50 Hz or 60 Hz. For RCBOs incorporated in, or intended for association with socket-outlets only, the requirements of this document can be used, as far as applicable, in conjunction with the requirements of IEC 60884-1 or the national requirements of the country where the product is placed on the market. This document does not apply to: .........

Read draft and comment View
prEN 14236 Public enquiry
Comment end date 2026-04-07
Ultrasonic domestic gas meters

This document specifies requirements and tests for the construction, performance and safety of class 1,0 and class 1,5 battery powered ultrasonic gas meters (hereinafter referred to as meters), having co-axial single pipe, or two pipe connections, used to measure volumes of distributed fuel gases of the 2nd and/or 3rd family gases as given in EN 437:2021, at maximum working pressures not exceeding 0,5 bar )) and maximum actual flow rates of up to 40 m3/h over a minimum ambient temperature range of −10 °C to +40 °C, and minimum gas temperature span of 40 K. This document applies to meters where the measuring element and the register(s) are enclosed in the same case. This document applies to meters with and without built-in temperature conversion, that are installed in locations with vibration and shocks of low significance and in - closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity; or, if specified by the manufacturer; - open locations (outdoor without any covering) both with condensing humidity or with non-condensing humidity; and in locations with electromagnetic disturbances likely to be found in residential, commercial and light industrial use. Unless otherwise stated, all pressures given in this document are gauge pressures. Clauses 1 to 14 are for design and type testing only. Requirements for electronic indexes, batteries, valves incorporated in the meter and other additional functionalities are given in EN 16314:2013 Unless otherwise stated in a particular test, the tests are carried out on meters that include additional functionality devices intended by the manufacturer. When more than one meter type is submitted for testing, then each meter type needs to be tested against this document.

Read draft and comment View
prEN 3874 Public enquiry
Comment end date 2026-04-14
Aerospace series - Test methods for metallic materials - Constant-amplitude force-controlled low-cycle fatigue testing
Read draft and comment View
prEN ISO 23401-1 Public enquiry
Comment end date 2026-03-31
Dentistry - Denture lining materials - Part 1: Hard type materials (ISO/DIS 23401-1:2026)

This document specifies the requirements for acrylic hard type materials used as chairside denture lining materials and the test methods to determine compliance with these requirements. This document also specifies requirements for packaging and marking the products and for the instructions for use to be supplied by the manufacturer. Dentures which are relined by hard type denture lining materials specified by this document are limited to those of acrylic. This document is not applicable to soft type denture lining materials.

Read draft and comment View
prEN 3523 Public enquiry
Comment end date 2026-04-14
Aerospace series - Steel 15CrMoV6 (1.7334) - Air melted - Hardened and tempered - Bars for machining - De ≤ 100 mm - 1 080 MPa ≤ Rm ≤ 1 280 MPas
Read draft and comment View
prEN 50726-3:2026 Public enquiry
Comment end date 2026-04-12
Emergency and danger systems - Part 3: Emergency and danger response systems (EDRS) - Risk management file and examples for applications

This document specifies the structure, construction, content and sequence of a technical risk management process and the technical risk management file in accordance with EN 50726-1. It also describes application examples for technical risk management according to EN 50726-1. An emergency and danger response system (EDRS) is used to minimize risks to life and limb. Its purpose is to report, verify and manage emergencies and dangers in order to prevent or limit personal injury. As already mentioned in the scope of application of EN 50726-1, the implementation of the Occupational Safety and Health Act and the subsequent regulations is intended in order to take particular account of the protection objective defined therein (physical integrity). However, this not only includes a risk assessment (e.g. prevention of acts of violence) for employees, but also for everyone in the property. The requirements of the Occupational Safety and Health Act are therefore intended to be observed when creating a safety concept and as part of the technical risk management process. Consequently, particular attention is drawn to paragraphs 5, 6 and 9 of the Occupational Safety and Health Act. Risks to life and limb can include emergencies and dangerous situations that can cause psychological or physical harm to people. As soon as the top management (e.g. operators, entrepreneurs, companies, approving authorities, building authorities, administrations) of a property has identified such risks to life and limb as part of risk management or similar risk assessments and/or independently became aware of them, this falls within the scope of EN 50726-1.

Read draft and comment View
EN 50440:2015/prA2:2026 Public enquiry
Comment end date 2026-04-10
Efficiency of domestic electrical storage water heaters and testing methods

This European Standard specifies methods for measuring the performance of electric storage water heaters for the production of sanitary hot water for household and similar use. The object is to state and define the principal performance characteristics of electric storage water heaters and to describe the test methods for measuring these characteristics. NOTE 1 This standard does not apply to; − storage water heaters that use electricity as a secondary source of heating the water; − storage water heaters that do not use a tank to store hot water; − electric storage water heaters that do not meet the minimum (or maximum) output performance of the smallest (or biggest) load profile, as defined in Table 4. NOTE 2 This standard does not specify performance or safety requirements. For safety requirements see EN 60335-1:2020 in conjunction with EN 60335-2-21:2023

Read draft and comment View
prEN ISO 8589 Public enquiry
Comment end date 2026-02-24
Sensory analysis - General guidance for the design of test rooms (ISO/DIS 8589:2025)

ISO 8589 provides general guidance for the design of test rooms intended for the sensory analysis of products. It describes the requirements to set up a test room comprising a testing area, a preparation area, and an office, specifying those that are essential or those that are merely desirable. ISO 8589 is not specific for any product or test type. Although many of the general principles are similar, ISO 8589 does not address test facilities for the specialized examination of products in inspection or in-plant quality-control applications.

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
PrLST ISO/DIS 37304 Public enquiry
Comment end date 2026-02-22
Compliance management systems — Requirements for bodies providing audit and certification of compliance management systems
Read draft and comment View
PrLST 1581 Public enquiry
Comment end date 2026-03-12
Buckwheat. Requirements for purchase and supply

Šiame Lietuvos standarte pateikiami superkamų ir tiekiamų grikių – vienmečių medingųjų javų (Fagopyrum sagittatum, Fagopyrum esculentum) (toliau – grikiai), supirkimo ir tiekimo reikalavimai.

Read draft and comment View
ISO/DIS 8589 Public enquiry
Comment end date 2026-02-21
Sensory analysis — General guidance for the design of test rooms
Read draft and comment View
prEN 302 326-2 V2.2.0 (2025-12) Public enquiry
Comment end date 2026-02-23
Fixed Radio Systems; Multipoint Equipment and Antennas; Part 2: Harmonised Standard for access to radio spectrum
Read draft and comment View
prEN IEC 61189-3-720:2025 Public enquiry
Comment end date 2026-02-25
Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 3-720: Test methods for interconnection structures (circuit boards) - Transmission loss test method for high frequency multilayer circuit boards
Read draft and comment View
prEN 15316-7-1 Archived
Comment end date 2026-02-17
Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 7-1: DHW instantaneous heat recovery- Module M8-13

This calculation module applies to instantaneous domestic hot water heat recovery using a counter-flow heat exchanger between the drain water and the incoming domestic cold water. This module calculates the recovered heat, to be taken into account in the overall calculation procedure of the energy performance of the building. The scope of this document is to standardize the: - required inputs; - calculation methods; - required outputs; of the instantaneous heat recovery from domestic hot water drains. This document provides a calculation method for one calculation interval. This calculation is intended to be connected to the whole building calculation model and takes into account the external conditions and system controls that may influence the instantaneous heat recovery from domestic hot water drains. This document does not apply to storage heat recovery or the use of drain water as a source for heat pumps. This document does not apply to sizing or inspection of domestic hot water heat recovery devices. Table 1 shows the relative position of this document within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000-1. NOTE 1 The same Table is found in CEN ISO/TR 52000-2, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation. NOTE 2 The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Table A.1 and Table B.1.

View
prEN ISO 8501-1 Public enquiry
Comment end date 2026-02-26
Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings (ISO/DIS 8501-1:2025)

ISO 8501-1:2007 is a hardback A5-format book in four languages (English, French, German and Swedish), which specifies a series of rust grades and preparation grades of steel surfaces. The various grades are defined by written descriptions together with photographs that are representative examples within the tolerance for each grade as described in words. It is applicable to hot-rolled steel surfaces prepared for painting by methods such as blast-cleaning, hand and power tool cleaning and flame cleaning, although these methods rarely lead to comparable results. Essentially, these methods are intended for hot-rolled steel, but blast-cleaning methods, in particular, could also be used on cold-rolled steel of sufficient thickness to withstand any deformation caused by the impact of the abrasive or the effects of power tool cleaning. This part of ISO 8501 is applicable also to steel substrates that show residues of firmly adhering paint and other foreign matter in addition to residual mill scale.

Read draft and comment View
prEN ISO 23146 Archived
Comment end date 2026-02-19
Fine ceramics (advanced ceramics, advanced technical ceramics) — Test methods for fracture toughness of monolithic ceramics — Single-edge V-notch beam (SEVNB) method

ISO 23146:2012 specifies a method for the determination of the fracture toughness of advanced technical ceramics. The procedure makes use of single-edge V-notched bars, which are loaded in four-point bending until failure. It is applicable to monolithic ceramics with a grain size or major microstructural feature size larger than about 1 µm. The use of ISO 23146:2012 for yttria tetragonal zirconia polycrystal material (Y-TZP) is not recommended. The method might also be unsuitable for some other very tough or soft ceramics in which a sharp crack does not form at the root of the V-notch.

View
prEN ISO 15799 Public enquiry
Comment end date 2026-03-03
Soil quality - Guidance on the ecotoxicological characterization of soils and soil materials (ISO/DIS 15799:2025)

This document is one of a family of International Standards providing guidance on soils and soil materials in relation to certain functions and uses including conservation of biodiversity. It applies in conjunction with these other standards. It provides guidance on the selection of experimental methods for the assessment of the ecotoxic potential of soils and soil materials (e.g. excavated and remediated soils, refills, embankments) with respect to their intended use and possible adverse effects on aquatic and soil dwelling organisms. NOTE This is a reflection of the maintenance of the habitat and retention function of the soil. In fact, the methods listed in this document are suitable for usage in a TRIAD approach, i.e. for an ecological assessment of potentially contaminated soils (see ISO 19204). This document does not cover tests for bioaccumulation. The ecological assessment of uncontaminated soils with a view to natural, agricultural or horticultural use is not within the scope of this document. Such soils can be of interest if they can serve as a reference for the assessment of soils from contaminated sites. The interpretation of results gained by applying the proposed methods is not in the scope of this document.

Read draft and comment View
EN IEC 62788-2-1:2023/prA1:2025 Public enquiry
Comment end date 2026-02-25
Amendment 1 - Measurement procedures for materials used in photovoltaic modules - Part 2-1: Polymeric materials - Frontsheet and backsheet - Safety requirements
Read draft and comment View
Total records found: 251
arrow-prev 1 2 3 4 5 … 11 arrow-next

Quick filters

Organisation
CEN Europos standartizacijos komitetas (150) ETSI Europos telekomunikacijų standartų institutas (8) CENELEC Europos elektrotechnikos standartizacijos komitetas (82) LST Lietuvos standartizacijos departamentas (2) ISO Tarptautinė standartizacijos organizacija (9)
Technical Committee
TK 1 Electronics (6) TK 4 Information technology (2) TK 5 Electrical engineering (17) TK 8 Electromagnetic compatibility (2) TK 9 Furniture (2) TK 12 Motor - roads (5) TK 13 Agricultural engineering (3) TK 15 Cereals, cereal products, bread and animal feeding stuffs (2) TK 18 Telecommunications (8) TK 20 Toys, child use articles, sports and other recreational equipment (3) TK 21 Textiles and personal protective equipment (1) TK 32 Health (18) TK 34 Metrology (1) TK 35 Safety of machinery (2) TK 36 Environmental protection (3) TK 39 Protection (2) TK 41 Welding (2) TK 43 Railway traffic (7) TK 45 Electric power (14) TK 49 Metallic materials (6) TK 50 Heating and Ventilation Systems (4) TK 51 Food analysis- Horizontal methods (6) TK 56 Metal liquid tanks and industrial pipelines. (2) TK 57 Fertilizers (10) TK 59 Geotechnics (2) TK 63 Gas cylinders and cryogenic vessels (5) TK 64 Ergonomics (1) TK 65 Tourism services (2) TK 66 Non-destructive testing (3) TK 68 Plastics (6) TK 70 Pulp, paper, board, adhesives (3) TK 76 Explosive atmospheres (2) TK 77 Lifts (2) TK 79 IT security techniques (4) TK 80 Road transport and traffic telematics (3) TK 82 Safety of trackless overground vehicles (1) TK 84 Chimneys and solid fuel burning appliances (1) TK 89 Risk management (1) TK 91 Asset management and technical maintenance (1) TK 92 Public Procurement (1) TK 99 Health Informatics (1)
ICS
Vandenilio technologijos (2) Kiti su dirvožemio kokybe susiję standartai (1) Biologinės dirvožemio savybės (1) Hidrologinės dirvožemio savybės (1) Additive manufacturing (1) Advanced ceramics (2) Aerospace electric equipment and systems (4) Agricultural machines and equipment in general (1) Alarm and warning systems (1) Alkaline secondary cells and batteries (4) Aluminium products (2) Anaesthetic, respiratory and reanimation equipment (4) Automatic controls for household use (2) Binders. Sealing materials (2) Biobased products (1) Bolts, screws, studs (1) Cables (1) Cableway equipment (1) Cereals, pulses and derived products (3) Chemical analysis of metals (1) Chemical laboratories. Laboratory equipment (1) Components and accessories in general (1) Components for rotating machines (1) Construction of airports (1) Construction of railways (1) Copper products (1) Corrosion of metals (1) Dental materials (2) Domestic safety (1) Earthworks. Excavations. Foundation construction. Underground works (1) Electric furnaces (2) Electric heaters (1) Electric tools (1) Electrical and electronic equipment (1) Electrical apparatus for explosive atmospheres (2) Electrical engineering in general (1) Electricity supply systems (1) Electroacoustics (2) Electronics (Vocabularies) (1) Equipment for petroleum and natural gas industries in general (3) Examination of water in general (1) Explosives. Pyrotechnics and fireworks (6) External sewage systems (1) Fertilizers (8) Fibre optic interconnecting devices (2) Fibres and cables (5) Fire protection (1) Fissile materials and nuclear fuel technology (1) Fruits and derived products (2) Fuel systems (1) Fuses and other overcurrent protection devices (3) Gas cylinders (2) Gas supply systems (1) Gases for industrial application (1) Geometrical Product Specification (GPS) (1) Heat pumps (1) Hoses and hose assemblies (1) Ignitability and burning behaviour of materials and products (1) Immunity (2) Indoor sports equipment (2) Information technology (IT) in general (3) Insulating materials in general (1) Insulation systems (1) IT applications in trade (1) IT applications in transport (3) IT Security (8) Ladders (1) Laminated sheets (1) Lamps in general (1) Leather and furs (1) Leisure and tourism in general (1) Low voltage switchgear and controlgear (4) Management systems (2) Materials and articles in contact with foodstuffs (2) Medical equipment in general (1) Medical microbiology (1) Non-destructive testing (3) Non-destructive testing of metals (1) Non-ferrous alloys in general (1) Nuclear power plants. Safety (1) Other semiconductor devices (1) Outdoor and water sports equipment (1) Paper and board (2) Petroleum products and natural gas handling equipment (1) Pipeline components and pipelines in general (5) Pipelines and its parts for district heat (1) Plastics pipes (1) Power transmission and distribution lines (1) Printed circuits and boards (1) Protection of and in buildings (1) Public buildings (2) Pumps and motors (1) Railway engineering in general (1) Railway rolling stock in general (2) Reactor engineering (1) Rectifiers. Converters. Stabilized power supply (2) Rotating machinery in general (2) Safety of machinery (3) Semiconductor devices in general (1) Sensory analysis (2) Services for companies (1) Services for consumers (1) Small craft (2) Small kitchen appliances (1) Software (1) Solar energy engineering (2) Solid fuel heaters (1) Solid fuels (1) Steels (1) Sterilized packaging (4) Sterilizing equipment (1) Surface preparation (2) Surface treatment (1) Switches (1) Telecommunications in general (1) TELECOMMUNICATIONS. AUDIO AND VIDEO ENGINEERING (8) Temperature-measuring instruments (1) Test conditions and procedures in general (1) Trade. Commercial function. Marketing (1) Trailing stock (1) Ventilation and air-conditioning systems (1) Water heating equipment (1) Water of natural resources (1) Waxes, bituminous materials and other petroleum products (2) Welding, brazing and soldering in general (1) Woodworking machines (2)