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BS EN 61643-31:2019
Low-voltage surge protective devices Requirements and test methods for SPDs for photovoltaic installations
Low-voltage surge protective devices Requirements and test methods for SPDs for photovoltaic installations
Released: 2022-09-29
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339.30 EUR
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33.93 EUR
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101.79 EUR
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339.30 EUR
BS EN 61643-321:2002
Low voltage surge protective devices Specifications for avalanche breakdown diode (ABD)
Low voltage surge protective devices Specifications for avalanche breakdown diode (ABD)
Released: 2002-03-21
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175.50 EUR
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17.55 EUR
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52.65 EUR
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175.50 EUR
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243.36 EUR
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24.34 EUR
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73.01 EUR
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243.36 EUR
BS EN 61649:2008
Weibull analysis
Weibull analysis
Released: 2009-02-28
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367.38 EUR
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36.74 EUR
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110.21 EUR
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367.38 EUR
BS EN 61660-1:1997
Short-circuit currents in d.c auxiliary installations in power plants and substations Calculation of short-circuit currents
Short-circuit currents in d.c auxiliary installations in power plants and substations Calculation of short-circuit currents
Released: 2009-10-31
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28.55 EUR
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85.64 EUR
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BS EN 61660-2:1997
Short-circuit currents in d.c. auxiliary installations in power plants and substations Calculation of effects
Short-circuit currents in d.c. auxiliary installations in power plants and substations Calculation of effects
Released: 1997-10-15
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85.64 EUR
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BS EN 61666:2010+A1:2021
Industrial systems, installations and equipment and industrial products. Identification of terminals within a system
Industrial systems, installations and equipment and industrial products. Identification of terminals within a system
Released: 2021-08-13
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17.55 EUR
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52.65 EUR
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BS EN 61669:2016
Electroacoustics. Measurement of real-ear acoustical performance characteristics of hearing aids
Electroacoustics. Measurement of real-ear acoustical performance characteristics of hearing aids
Released: 2016-02-29
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85.64 EUR
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BS EN 61672-1:2013
Electroacoustics. Sound level meters Specifications
Electroacoustics. Sound level meters Specifications
Released: 2013-12-31
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339.30 EUR
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BS EN 61672-2:2013+A1:2017
Electroacoustics. Sound level meters Pattern evaluation tests
Electroacoustics. Sound level meters Pattern evaluation tests
Released: 2018-03-16
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322.92 EUR
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96.88 EUR
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BS EN 61672-3:2013
Electroacoustics. Sound level meters Periodic tests
Electroacoustics. Sound level meters Periodic tests
Released: 2014-01-31
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243.36 EUR
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24.34 EUR
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73.01 EUR
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BS EN 61674:2013
Medical electrical equipment. Dosimeters with ionization chambers and/or semiconductor detectors as used in X-ray diagnostic imaging
Medical electrical equipment. Dosimeters with ionization chambers and/or semiconductor detectors as used in X-ray diagnostic imaging
Released: 2013-04-30
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285.48 EUR
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28.55 EUR
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85.64 EUR
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285.48 EUR