Standards World

ISO 19879:2010 pdf free download – Metallic tube connections for fluid power and general use – – Test methods for hydraulic fluid power connections

ISO 19879:2010 pdf free download - Metallic tube connections for fluid power and general use - - Test methods for hydraulic fluid power connections. 11 Overtightening test 11.1 Principle Unless otherwise specified in the respective connector standard,...

02-09

IEC 60749-41:2020 pdf free download – Semiconductor devices – Mechanical and climatic test methods

IEC 60749-41:2020 pdf free download - Semiconductor devices - Mechanical and climatic test methods 3.4 data pattern mix of several 1s and 0s in the memory and their physical or logical positions Note 1 to entry: A...

02-09

ISO 19703:2010 pdf free download – Generation and analysis of toxic gases in fire一Calculation of species yields, equivalence ratios and combustion efficiency in experimental fires

ISO 19703:2010 pdf free download - Generation and analysis of toxic gases in fire一Calculation of species yields, equivalence ratios and combustion efficiency in experimental fires. 5.4 Data collection 5.4.1 Data acquisition Time-resolved data or time-integrated data may...

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IEC 60749-20:2020 pdf free download – Semiconductor devices – Mechanical and climatic test methods

IEC 60749-20:2020 pdf free download - Semiconductor devices - Mechanical and climatic test methods 4 General description Package cracking and electrical failure in plastic encapsulated SMDs can result whensoldering heat raises the vapour pressure of moisture which...

02-09

IEC 60700-2:2021 pdf free download – Thyristor valves for high voltage direct current (HVDC) power transmission

IEC 60700-2:2021 pdf free download - Thyristor valves for high voltage direct current (HVDC) power transmission 1 Scope This part of lEC 60700 defines terms for thyristor valves for high-voltage direct current (HVDC)power transmission with line commutated...

02-09

ISO 18437-5:2011 pdf free download – Mechanical vibration and shock – Characterization of the dynamic mechanical properties of visco-elastic materials – Part 5: Poisson ratio based on comparison between measurements and finite element analysis

ISO 18437-5:2011 pdf free download - Mechanical vibration and shock - Characterization of the dynamic mechanical properties of visco-elastic materials - Part 5: Poisson ratio based on comparison between measurements and finite element analysis. 8 Sample preparation...

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IEC 60700-1:2021 pdf free download – Thyristor valves for high voltage direct current (HVDC) power transmission

IEC 60700-1:2021 pdf free download - Thy4.1.1Evidence in lieu 4.11 Each design of valve shall be subjected to the type tests specified in this standard. If thevalve is demonstrably similar to one previously tested, the supplier may,...

02-09

ISO 18292:2011 pdf free download – Energy performance of fenestration systems for residential buildings 一 Calculation procedure

ISO 18292:2011 pdf free download - Energy performance of fenestration systems for residential buildings 一 Calculation procedure. 8.2 Thermal transmittance, U-value The thermal transmittance, U-value, is determined for the whole fenestration product. Calculate the U-value as specified...

02-09

IEC 60695-2-10:2000 pdf free download – Essais relatifs aux risques du feu

IEC 60695-2-10:2000 pdf free download - Essais relatifs aux risques du feu 1 Scope This part of lEC 60695 specifies the glow-wire apparatus and common test procedure tosimulate the effect of thermal stresses which may be produced...

02-09

ISO 18275:2011 pdf free download – Welding consumables – Covered electrodes for manual metal arc welding of high-strength steels – – Classification

ISO 18275:2011 pdf free download - Welding consumables - Covered electrodes for manual metal arc welding of high-strength steels - - Classification. C.1 General The properties of a covered electrode, i.e. both its welding characteristics and the...

02-09