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自動關(guān)閉閥 PN 10檢測項目報價???解決方案???檢測周期???樣品要求? |
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本標準規(guī)定了擠奶機擠奶和清洗功能的低性能和參數(shù)要求,以及特定的尺寸要求。同時還對擠奶設(shè)備的材質(zhì)、設(shè)計、結(jié)構(gòu)、安裝等要求作出了具體的規(guī)定。本標準適用于利用真空產(chǎn)生脈動、利用(至少部分利用)氣流幫助輸送奶(奶牛、水牛、綿羊和山羊等)的擠奶設(shè)備。本標準定性的要求同樣也適用于其他產(chǎn)奶哺乳動物的擠奶設(shè)備。本標準的一些條款不適用于所有類型的擠奶機。
本標準規(guī)定了給排水用緩閉止回閥的產(chǎn)品分類、要求、試驗方法、檢驗規(guī)則、標志、包裝、運輸及貯存的基本要求。\t本標準適用于公稱壓力PN≤4.0MPa,公稱通徑DN≤4000mm,工作溫度不大于80℃,工作介質(zhì)為飲用水、原水、工業(yè)循環(huán)水、海水、污水及其他非腐蝕性介質(zhì)的法蘭連接的緩閉止回閥。
本標準規(guī)定了液控止回蝶閥的結(jié)構(gòu)型式、技術(shù)要求、試驗方法、檢驗規(guī)則、標志、包裝、貯存和運輸、本標準適用于公稱尺寸DN300~DN4000、公稱壓力PN2.5~PN40,工作介質(zhì)為水及其他液體介質(zhì),安裝在具有變速止回和截斷需求的管路上,法蘭連接的液控止回蝶閥、
This part of EN 746 together with EN 746-1 specifies safety requirements for single and multiple burners that are part of Industrial Thermoprocessing Equipment. (InThis standard referred to as IThE).This document deals with significant hazards, hazardous situations and events relevant to combustion and fuel handling systems that are part of IThE as listed in Clause 4, when used as intended and under the conditions foreseen by the manufacturer.This European Standard covers: fuel pipework downstream of and including the manual isolating valve; burner(s), burner system and ignition device; safety related control system (protective system).This European Standard applies to any oxidation with air or other gases containing free oxygen of gaseous, liquid and solid fuels or any combustion of them to release thermal energy. For thermal or catalytic post combustion and waste incineration,This European Standard applies only to auxiliary burners designed to start-up and/or support the process. The pressure hazard of the piping and components covered byThis standard is within the limits of maximum pressure/size relationship as described in normative Annex E.This European Standard also gives the necessary requirements for the information for use.This European Standard does not cover hazards from heating generated by electricity.This European Standard does not deal with the hazards created by the release of flammable substances from the products processed in the IThE. NOTE EN 1539, Dryers and ovens, in which flammable substances are released-Safety requirementsThis European Standard is not applicable to combustion and fuel handling systems of welding and soldering machines; up-stream of the IThE manual isolating valve.This European Standard is not applicable to electricity cabling and power cabling upstream of the IThE control panel/protective system. Noise can be a significant hazard for combustion and fuel handling systems. It is not dealt with inThis standard.This European Standard is not applicable to combustion and fuel handling systems as part of IThE which is manufactured before the date of its publication as EN.
This European Standard specifies the requirements and test methods for the safety and efficiency of domestic gas-fired air heaters with a fan to assist the transportation of combustion air and/or combustion products, hereafter referred to as appliances.This European Standard applies to Type B12, B12AS, B12BS, B13, B13AS, B13BS, B14, B14AS, B14BS, B22, B23, B42, B42AS, B42BS, B43, B43AS, B43BS, B44, B44AS, B44BS, B52, B53, C12, C13, C32, C33, C62 and C63 appliances with an input not exceeding 70 kW (net cv basis), intended primarily for use in single unit residential dwellings. Provision of the heated air may be by means of ducting.This standard does not apply to: a) appliances of the condensing type; b) appliances for outdoor installation; c) dual purpose air conditioning appliances (heating and cooling); d) appliances where the air is heated by an intermediate fluid; e) appliances with forced draught package burners or fully premixed burners; f) appliances fitted with a manual means of adjusting the combustion air supply or the evacuation of the combustion products; g) portable or transportable forced convection appliances; h) appliances having multiple heating units with a single draught diverter; i) appliances fitted with more than one flue outlet; j) Type C22, C23, C42, C43, C52 and C53 appliances; k) appliances that are designed for continuous condensation within the flue system under normal operating conditions; l) appliances having combustion products evacuation ducts, POCEDs, that are non-metallic.This standard is applicable to appliances which are intended to be type tested. It also includes requirements concerning the evaluation of conformity, including factory production control, but these requirements only apply to POCEDs and their associated terminals.
La présente Norme européenne s'applique aux robinets simples et aux mitigeurs à fermeture automatique destinés à l'équipement des appareils sanitaires installés dans les locaux d'hygiène corporelle.
This standard specifies the performance and testing requirements for connection fittings (dry couplings). This standard taking as a basis application to liquid gases under operating conditions: - nominal size 50 DN to DN 150; - nominal pressure 25 bar or 2,5 MPa; - design temperature range from -196 °C to +65 °C.
Part 2 of DIN 86210 specifies the requirements on emergency release couplings used for on-board and shoreside or barge-side connections for supplying heavy fuels, diesel fuels, lubricants and fresh water to vessels, and for discharging sludge, wastewater, waste oil and other fluids from seagoing vessels.
This European Standard specifies the construction and performance characteristics as well as the requirements and methods of test for the safety and marking of domestic cooking appliances,capable of using the combustrble gases defined in EN 30-1-1-2008+A2-2010.that have one or more burners with an automatic burner control system, referred to in the text as\"appliances\".
This European Standard specifies the requirements and test methods for the contruction,the safety and the rational energy usage for gas-fired standard and low temperature central heating boilers equipped with a forced draught burner.These boilers comprise a boiler body and a forced draught gas burner brought together at the producer's assembly facility,the whole being disigned and marketed as a complete boiler.This standard does not apply to the case of the assembly of a boiler body and a forced draught gas burner designed and marketed separately.In this case,EN 303-3 applies.This European Standard applies to type B
This part of EN 746 together with EN 746-1 specifies safety requirements for single and multiple burners that are part of Industrial Thermoprocessing Equipment. (In this standard referred to as IThE).This document deals with significant hazards, hazardous situations and events relevant to combustion and fuel handling systems that are part of IThE as listed in Clause 4, when used as intended and under the conditions foreseen by the manufacturer.This European Standard covers:- fuel pipework downstream of and including the manual isolating valve;- burner(s), burner system and ignition device;- safety related control system (protective system).This European Standard applies to any oxidation with air or other gases containing free oxygen of gaseous, liquid and solid fuels or any combustion of them to release thermal energy.For thermal or catalytic post combustion and waste incineration, this European Standard applies only to auxiliary burners designed to start-up and/or support the process.The pressure hazard of piping and components covered by this standard is within the limits of maximum pressure/size relationship as described in normative Annex E.This European Standard also gives the necessary requirements for the information for use.This European Standard does not cover hazards from heating generated by electricity.This European Standard does not deal with the hazards created by the release of flammable substances from the products processed in the IThE.This European Standard is not applicable to electricity cabling and power cabling upstream of the IThE control panel/protective system.Noise can be a significant hazard for combustion and fuel handling systems. It is not dealt with in this standard.This European Standard is not applicable to combustion and fuel handling systems as part of IThE which is manufactured before the date of its publication as EN.
This European Standard specifies the requirements and test methods for the construction, safety and marking of domestic direct gas-fired tumble dryers, of types B22D and B23D, of nominal heat input not exceeding 6 kW, hereafter referred to as \"appliances\". This European Standard does not apply to: a) catalytic combustion appliances; b) appliances designed exclusively for industrial purposes; c) appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere; d) appliances of the condensing type wherein the heated air and products of combustion used for the drying process are dehumidified by cooling with water or air; e) appliances intended to be used in vehicles or on board ships or aircraft. This European Standard covers type testing only.
This European Standard specifies the requirements and test methods for the construction, safety, marking and rational use of energy of open fronted gas-fired independent space heaters with and without a fan to assist with the transportation of flue gases. Although the fan may be mounted outdoors, this standard only covers appliances where the body of the appliance is indoors. This standard applies to types B11AS, B11BS, B14AS, and B14BS open fronted gas-fired independent space heating appliances that incorporate an atmospheric burner, that are connected directly to an open flue or to a device to evacuate the products of combustion (open-flued appliances), that have a nominal heat input not exceeding 20 kW (based on the net calorific value) and that are delivered with the gas-carrying components, burner (s), combustion chamber and heat exchanger fully assembled.
This European standard specifies the requirements for the design and testing of spring loaded pressure relief valves and thermal expansion valves for use in: - static LPG tanks, - LPG tanks on road tankers, rail tankers, tank-containers or demountable tanks. This document does not address production testing.
This European Standard covers the installation requirements, on fixed LPG filling stations and on multi-fuel filling stations, for the automotive LPG equipment and components, which are required to safely dispense automotive LPG. This European Standard does not cover on-site and off-site safety distances. NOTE Users of this European Standard should be aware that National regulations may be in place covering all or some of the requirements of this European Standard. National regulations over-ride any requirement in this European Standard in the states where they apply.
This document specifies, for the purpose of type examination, the requirements and test methods for construction, safety, marking and rational use of energy of 2ne and 3rd family gas-fired domestic flueless space heating appliances having a nominal input not exceeding 6 kW (based on net calorific value). It covers the following Type AAS fixed flueless heaters: NOTE These are type A appliances fitted with an atmosphere sensing device, with or without a fan. a) heaters with or without a catalytic converter; b) Category 1 appliances burning gases of the second family; c) Category 2 appliances burning gases of the second and third families. It does not cover qi. Mobile heaters.ii. Category 1 appliances burning gases of the third family.iii. Portable flueless heaters.iv. Diffusive catalytic combustion heaters. There are no specific thermal efficiency requirements appropriate to these types of appliance as: -- All the heat produced by the combustion process is released into the space to be heated. -- The requirements with regard to the combustion performance, which is a safety matter, ensure the effective burning of the fuel gas. This standard is only applicable to appliances which are to be type tested. Matters related to quality assurance systems, tests during production and to certificates of conformity of auxiliary devices are not dealt with by this standard.
This British Standard gives detailed requirements, including safety andperformance requirements and methods of test, for direct gas firedforced convection air heaters having heat inputs greater than 330 kWbut not exceeding 2 MW, intended for industrial and commercialapplications. Appliances covered by this standard are not intended forinstallation in domestic dwellings.The scope of this standard includes direct gas fired forced convectionair heaters for use both with and without ducting, and intendedprimarily for space heating applications. It therefore includes airheaters designed to provide make-up air, door curtain heaters, spraybooth heaters, portable air heaters and direct fired air heaters capableof providing full space heating.This standard specifies the requirements for direct gas fired forcedconvection air heaters designed for permanent outdoor installation. Italso specifies the requirements for transportable direct gas fired forcedconvection air heaters.This standard applies to appliances designed to operate on normal lowpressure district supplies of 2nd family gas.For appliances fitted with gas boosters, additional requirements mayapply.
This British Standard specifies detailed requirements, including safetyand performance requirements and methods of test, for indirect gasfired forced convection air heaters having heat inputs greaterthan 330 kW but not exceeding 2 MW, intended for industrial andcommercial applications. Appliances covered by this standard are notintended for installation in domestic dwellings.The scope of this standard includes indirect gas fired forced convectionair heaters for use both with and without ducting, and intendedprimarily for space heating applications.This standard also specifies the requirements for indirect gas firedforced convection air heaters designed for permanent outdoorinstallation.It applies to appliances designed to operate on normal low pressuredistrict supplies of 2nd family gas.For appliances fitted with gas boosters and/or flue dampers, additionalrequirements may apply.This standard does not apply to portable and transportable indirect gasfired forced convection air heaters.