GDPR

projektai-lsd Lithuanian Standards Board
Portal for draft standards

Extended search

till

Results

Showing:
prEN ISO 7799 Public enquiry
Comment end date 2026-07-07
Metallic materials - Sheet and strip 3 mm thick or less - Reverse bend test (ISO/DIS 7799:2026)

Specifies the method for determining the ability of sheet and strip to undergo plastic deformation in reverse bending. Can be applied to aluminium and its alloys only after previous agreement. The reverse bend test consists of repeated bending through 90 , in opposite directions, of a rectangular test piece held at one end, each bend being over a cylindrical support of specified radius.

prEN ISO 12135 Public enquiry
Comment end date 2026-06-07
Metallic materials - Unified method of test for the determination of quasistatic fracture toughness (ISO 12135:2021, including corrected version 2022-08)

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

Quick filters

Technical Committee
TK 1 Electronics (8) TK 4 Information technology (4) TK 5 Electrical engineering (26) TK 8 Electromagnetic compatibility (2) TK 12 Motor - roads (4) TK 13 Agricultural engineering (9) TK 18 Telecommunications (16) TK 19 Concrete and reinforced concrete (1) TK 20 Toys, child use articles, sports and other recreational equipment (1) TK 21 Textiles and personal protective equipment (2) TK 22 Fire safety (3) TK 23 Ceramic tiles, masonry and natural stones (2) TK 28 Gas systems (4) TK 29 Water supply (3) TK 32 Health (11) TK 34 Metrology (2) TK 35 Safety of machinery (1) TK 36 Environmental protection (7) TK 38 Building constructions (26) TK 40 Petroleuml, petroleum products, lubricants and alternative fuels (1) TK 41 Welding (4) TK 42 Packaging (3) TK 43 Railway traffic (4) TK 45 Electric power (16) TK 47 Information and documentation (3) TK 49 Metallic materials (6) TK 50 Heating and Ventilation Systems (1) TK 51 Food analysis- Horizontal methods (1) TK 54 Assistive products for persons with disability (1) TK 57 Fertilizers (6) TK 59 Geotechnics (3) TK 63 Gas cylinders and cryogenic vessels (3) TK 65 Tourism services (1) TK 66 Non-destructive testing (1) TK 68 Plastics (3) TK 70 Pulp, paper, board, adhesives (1) TK 71 Sustainably produced biomass for energy application, solid biofuel and solid recovered fuel (1) TK 76 Explosive atmospheres (2) TK 77 Lifts (1) TK 79 IT security techniques (2) TK 82 Safety of trackless overground vehicles (2) TK 84 Chimneys and solid fuel burning appliances (2) TK 86 Geographic information (1) TK 88 Building Information Modelling (BIM) (2) TK 89 Risk management and organizational governance (2) TK 91 Asset management and technical maintenance (1) TK 99 Health Informatics (3)
ICS
Biologinės dirvožemio savybės (1) Fizikinės dirvožemio savybės (1) Agricultural machines and equipment in general (1) Agricultural tractors and trailed vehicles (1) Aircraft and space vehicles in general (1) Alkaline secondary cells and batteries (1) Aluminium products (3) Aluminium structures (3) Application of information technology in general (2) Automatic controls for household use (2) Binders. Sealing materials (4) Bolts, screws, studs (5) Bridge construction (1) Cans. Tins. Tubes (2) Cement. Gypsum. Lime. Mortar (1) Check valves (1) Chemical laboratories. Laboratory equipment (3) Chimneys, shafts, ducts (1) Civil engineering in general (1) Cleaning appliances (2) Coatings and related processes used in aerospace industry (2) Company organization and management in general (1) Concrete and concrete products (2) Connecting devices (1) Construction industry in general (1) Cooking ranges, working tables, ovens and similar appliances (2) Cookware, cutlery and flatware (1) Corrosion of metals (1) Dental equipment (1) Dental instruments (1) Dental materials (1) Dentistry in general (1) Dishwashers (2) Domestic refrigerating appliances (2) Domestic safety (11) Earthworks. Excavations. Foundation construction. Underground works (2) Electric heaters (2) Electrical and electronic equipment (2) Electrical and electronic testing (1) Electrical apparatus for explosive atmospheres (2) Electrical insulation in general (1) Environmental economics. Sustainability (1) Environmental impact assessment (1) Environmental testing (2) Equipment for storage, preparation and distribution of fertilizers (1) Ergonomics (1) Examination of physical properties of water (1) Exploratory, drilling and extraction equipment (1) Explosives. Pyrotechnics and fireworks (1) Extraction and processing of petroleum and natural gas (2) Fasteners in general (1) Fertilizers (5) Fibre optic interconnecting devices (2) Fibres and cables (2) Fire protection (2) Fissile materials and nuclear fuel technology (4) Floor coverings (2) Flow in open channels (1) Gas cylinders (2) Gas supply systems (1) General methods of tests and analysis for food products (2) General purpose pallets (1) Governance and ethics (1) Harvesting equipment (1) Heat pumps (1) Immunity (2) In vitro diagnostic test systems (1) Indoor sports equipment (1) Industrial process measurement and control (1) Information technology (IT) in general (1) Installations and equipment for waste disposal and treatment (1) Insulating materials in general (1) Iron and steel forgings (1) Iron and steel products in general (1) IT applications in health care technology (3) IT applications in science (1) IT applications in transport (2) IT Security (4) Laboratory medicine in general (1) Lamps in general (2) Laundry appliances (1) Leather and furs (2) Lifts. Escalators (1) Liquid fuels (1) Luminaires (1) Management of human resources (1) Masonry (1) Materials and components for railway engineering (1) Measurement of electrical and magnetic quantities (2) Measurement of volume, mass, density, viscosity (1) Mechanical structures for electronic equipment (2) Mechanical testing of metals (2) Medical microbiology (1) Metallurgy (Vocabularies) (1) Microbiology of water (1) Mineral materials and products (2) Natural gas (1) Navigation and control equipment (1) Noise emitted by machines and equipment (1) Non-destructive testing (1) Nuclear power plants. Safety (1) Nuts (6) Other equipment related to power transmission and distribution networks (1) Other products of the chemical industry (1) Other semiconductor devices (1) Other standards related to aids for disabled and handicapped people (1) Paints and varnishes (1) Paper and board (1) Passenger and cabin equipmen (2) Petroleum products and natural gas handling equipment (2) Pipeline components and pipelines in general (1) Pipelines and its parts for external sewage systems (1) Plastics in general (1) Plastics pipes and fittings for non fluid use (1) Pneumatic tools (1) Pollution, pollution control and conservation (2) Postal services (1) Power transmission and distribution lines (3) Products of the chemical industry (1) Protection against dangerous goods (1) Radiation measurements (2) Railway rolling stock in general (3) Raw skins, hides and pelts (1) Recycling (1) Rotating machinery in general (1) Seismic and vibration protection (1) Services in general (1) Solar energy engineering (1) Solid fuel heaters (1) Solid fuels (1) Steel pipes and tubes for specific use (2) Steel structures (1) Surface treatment and coating in general (1) Technical aspects (16) TELECOMMUNICATIONS. AUDIO AND VIDEO ENGINEERING (16) Telecontrol. Telemetering (5) Thermistors (1) Timber structures (1) Trailing stock (1) Transport by rail (1) Walls. Partitions. Façades (1) Water heating equipment (2) Waxes, bituminous materials and other petroleum products (1) Welded joints and welds (2) Welding equipment (2) Woodworking machines (2) Workplace atmospheres (1) Writing and transliteration (3)