EN European Norm Tests Part 105

EN Standards are European Standards. These standards specify requirements for a particular item, material, component, system or service, or describe in detail a particular method or procedure, and tests are performed accordingly.

• EN 24017 : 1992 ; Hex head screws. Product classes A and B.
• EN 24032: 1992; Hex nuts, model 1 ; Product classes A and B.
• EN 24033 : 1992 ; Hex nuts, style 2 ; Product classes A and B.
• EN 24035 : 1992 ; Hexagon thin nuts (chamfered). Product classes A and B.
• EN 24036 : 1992 ; Hexagonal thin nuts. Product class B (without chamfer).
• EN 24049 : 1992 ; Specification for resin-based dental filling materials (class B).
• EN 24063: 1992; Welding, brazing, brazing and brazing of metals. Nomenclature and reference numbers of processes for symbolic representation in drawings.
• EN 24165 : 1992 ; Road vehicles. Electrical connections. Double pole connector.
• EN 24178: 1993; Specification for information to be recorded in deployment attempts containing complete, filled transport packages.
• EN 24185: 1993; Measurement of fluid flow in closed channels. Weighing method.
• EN 24217 : 1994 ; Codes for the representation of currencies and funds.
• EN 24260: 1994; Test methods for petroleum and its products. Petroleum products and hydrocarbons. Determination of sulfur content. Wickbold burning method.
• EN 24489: 1993; Sintered hard metals. Sampling and testing.
• EN 24491-1: 1993; Metallic powders. Determination of oxygen content by reduction methods. general rules
• EN 24491-2: 1993; Metallic powders. Determination of oxygen content by reduction methods. Mass loss in hydrogen reduction (hydrogen loss)
• EN 24491-4: 1993; Metallic powders. Determination of oxygen content by reduction methods. Total oxygen by reduction-subtraction
• EN 24492: 1993; Metallic powders, excluding powders for hard metals. Determination of dimensional changes associated with compression and sintering.
• EN 24496: 1993; Metallic powders. Determination of acid-insoluble content in iron, copper, tin and bronze powders.
• EN 24497: 1993; Metallic powders. Determination of particle size by dry sieving.
• EN 24498-1: 1993; Sintered metal materials except hard metals. Determination of apparent hardness. Materials with essentially uniform cross-section hardness
• EN 24499: 1993; Specification for hard metals. Metallographic determination of microstructure.
• EN 24501 : 1994 ; Hard metals. Titanium determination. Photometric peroxide method.
• EN 24503: 1993; Hard metals. Determination of the contents of metallic elements by X-ray fluorescence. Fusion method.
• EN 24505: 1993; Specification for hard metals. Metallographic determination of porosity and unconsolidated carbon.
• EN 24506: 1993; Specification for hard metals. Compression test.
• EN 24641 : 1993 ; Rubber hoses for water suction and discharge. Specification.
• EN 24671 : 1993 ; Rubber and plastic hose and hose assemblies. Methods of measuring dimensions.
• EN 24672: 1993; Rubber and plastic hoses. Sub-ambient temperature flexibility tests.
• EN 24823 : 1994 ; Dental elastic impression material. Specification for elastomeric impression materials.
• EN 24869-3 : 1994 ; Acoustic. Hearing protectors. Simplified method for measuring wear loss of earmuff protectors for quality control purposes
• EN 24883: 1993; Specification for hard metals. Determination of the contents of metallic elements by X-ray fluorescence. Solution method.
• EN 24884 : 1993 ; Hard metals. Sampling and testing of powders using sintered test pieces.
• EN 24920 : 1992 ; Textile. Determination of the resistance of fabrics to surface wetting (spray test).
• EN 24937: 1991; Steel and iron. Determination of chromium content. Potentiometric or visual titration method.
• EN 25077: 1994; Textile. Determination of size change in washing and drying.
• EN 25136 : 1994 ; Acoustic. Determination of the sound power emitted by fans into a duct. In-channel method.
• EN 25163 : 1994 ; Test methods for petroleum and its products. Engine and aviation fuels. Determination of knock characteristics. Engine method.
• EN 25164: 1994; Test methods for petroleum and its products. Engine fuels. Determination of knock characteristics. Research method.
• EN 25183-1 : 1992 ; Resistance spot welding. Electrode adapters, male taper 1: 10 ; Conical fixing, conical 1: 10
• EN 25183-2: 1992; Resistance spot welding. Electrode adapters, male taper 1: 10 ; Parallel shaft fixation for tip thrust electrodes
• EN 25184 : 1995 ; Flat resistive spot welding electrodes.
• EN 25199 : 1992 ; Technical specifications for centrifugal pumps. Class II.
• EN 25264-3 : 1994 ; Doughs. Laboratory beating. Jocro mill method
• EN 25580: 1992; Specification for minimum requirements for industrial radiographic illuminators for non-destructive testing.
• EN 25651: 1993; Specification for units expressing the properties of paper, board and pulp.
• EN 25663: 1993; water quality. Determination of Kjeldahl nitrogen. Method after mineralization with selenium.
• EN 25667-1: 1994; water quality. Sampling. Guidance on the design of sampling programs
• EN 25667-2: 1993; water quality. Sampling. Guidance on sampling techniques
• EN 25754 : 1993 ; Sintered metal materials except hard metals. Impact test piece without notch.
• EN 25813 : 1993 ; water quality. Dissolved oxygen determination. Iodometric method.
• EN 25814 : 1992 ; Method of determination of dissolved oxygen in water: electrochemical probe method.
• EN 25817 : 1992 ; Arc welded connections in steel. Guidance on quality levels for defects.
• EN 25822 : 1992 ; Spot welding equipment. Taper plug gauges and taper ring gauges.
• EN 25827 : 1992 ; Specification for spot welding. Electrode spares and clamps.
• EN 25978 : 1993 ; Rubber or plastic coated fabrics. Determination of the blocking resistance.
• EN 26098 : 1994 ; Computing. Self-loading cartridges for 12,7 mm (0,5 inch) wide magnetic tape.
• EN 26157-1 : 1992 ; Connectors. Surface discontinuities. Bolts, screws and studs for general requirements.
• EN 26157-3 : 1992 ; Connectors. Surface discontinuities.. Bolts, screws and studs for special requirements
• EN 26246: 1994; Test methods for petroleum and its products. Petroleum products. Motor gasoline and aviation fuels. Identification of existing gum. Jet evaporation method.
• EN 26330 : 1994 ; Textile. Home washing and drying procedures for textile testing.
• EN 26360-2: 1998; Dentistry Dental rotary instruments. Number coding system. Shape and specific features
• EN 26461-1: 1993; water quality. Detection and enumeration of spores of sulfide reducing anaerobes (Clostridia). Method of enrichment in a liquid medium
• EN 26461-2: 1993; water quality. Detection and enumeration of spores of sulfide reducing anaerobes (Clostridia). Membrane filtration method
• EN 26501 : 1992 ; Ferronickel. specification and delivery requirements.
• EN 26520 : 1992 ; Classification of defects in metallic fusion welds with explanations.
• EN 26553: 1991; Specifications for marking automatic steam traps.
• EN 26554: 1991; Specifications for face-to-face dimensions for flanged automatic steam traps.
• EN 26590-1: 1993; Packaging. sacks. Vocabulary and its types. paper sacks
• EN 26590-2: 1993; Packaging. sacks. Vocabulary and its types. Sacks made of thermoplastic flexible film
• EN 26591-1 : 1993 ; Packaging. sacks. Definition and method of measurement. empty paper sacks
• EN 26591-2: 1993; Packaging. sacks. Definition and method of measurement. Empty sacks made of thermoplastic flexible film
• EN 26595: 1993; water quality. Total arsenic determination. Silver diethyldithiocarbamate spectrophotometric method.
• EN 26599-1 : 1993 ; Packaging. sacks. Conditioning for the test.. Paper bags
• EN 26777 : 1993 ; water quality. Physical, chemical and biochemical methods. Determination of nitrite: molecular absorption spectrometric method.
• EN 26789 : 1994 ; Assembly tools for screws and nuts. Hand torque tools. Requirements and test methods.
• EN 26801 : 1993+A1 : 2011 ; Rubber and plastic hoses. Determination of volumetric expansion.
• EN 26847: 1994; Covered electrodes for manual metal arc welding. Deposition of a weld metal pad for chemical analysis.
• EN 26874 : 1992 ; Specification for dental resin-based pit and fissure sealants.
• EN 26922: 1993; Adhesives. Determination of the tensile strength of butt joints.
• EN 26927: 1991; Building construction. Joining products. Sealing materials. Vocabulary.
• EN 26948: 1991; Specification for production and performance characteristic tests for automatic steam traps.
• EN 27023: 1993; Packaging. sacks. Method of taking samples from empty sacks for testing.
• EN 27027 : 1994 ; water quality. Determination of turbidity.
• EN 27185: 1992; Information Technology. programming languages. pascal
• EN 27201-1 : 1994 ; Fire protection. firefighting environment. Halogenated hydrocarbons. Specifications for halon 1211 and halon 1301
• EN 27201-2 : 1994 ; Fire protection. firefighting environment. Halogenated hydrocarbons. Code of practice for safe handling and transfer procedures
• EN 27243: 1994; hot environments. Estimation of heat stress on human working based on WBGT index (wet bulb globe temperature).
• EN 27286: 1992; Graphic symbols for resistance welding equipment.
• EN 27372: 1992; Trade data exchange. Directory of trade data items.
• EN 27389: 1991; Building construction. Joining products. Determination of elastic recovery.
• EN 27390: 1991; Building construction. Joining products. Determination of resistance to flow.
• EN 27418 : 1994 ; Accommodation tools. Vocabulary.
• EN 27490: 1992; Specification for dental gypsum bonded casting investments for gold alloys.
• EN 27501-1: 1993; ID cards. Machine-readable travel documents. machine readable passport
• EN 27627-1: 1993; Hard metals. Chemical analysis by flame atomic absorption spectrometry. General Requirements
• EN 27627-2: 1993; Hard metals. Chemical analysis by flame atomic absorption spectrometry. Determination of calcium, potassium, magnesium and sodium at 0,001% to 0,02% (m/m) contents
• EN 27627-3: 1993; Hard metals. Chemical analysis by flame atomic absorption spectrometry. Determination of cobalt, iron, manganese and nickel at 0,01 to 0,5% (m/m) contents
• EN 27627-4: 1993; Hard metals. Chemical analysis by flame atomic absorption spectrometry. Determination of molybdenum, titanium and vanadium at 0,01 to 0,5% (m/m) contents
• EN 27627-5: 1993; Hard metals. Chemical analysis by flame atomic absorption spectrometry. Determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium at 0,5 to 2% (m/m) contents
• EN 27627-6: 1993; Hard metals. Chemical analysis by flame atomic absorption spectrometry. Determination of chromium at 0,01 to 2% (m/m) content

Standards facilitate international trade by ensuring compatibility and interoperability of components, products and services. European Standards (ENs) are documents approved by three European Standardization Organizations (ESO), CEN, CENELEC or ETSI; Recognized as competent in the field of voluntary technical standardization for EU Regulation 1025/2012.