IEC 60904-1:2020 pdf free download - Photovoltaic devices 1Scope This part of lEC 60904 describes procedures for the measurement of current-voltagecharacteristics (-V curves) of photovoltaic(PV) devices in natural or simulated sunlight.Theseprocedures are applicable to a single PV...
EN ISO 17637:2011 pdf free download – Non-destructive testing of welds – Visual testing of fusion-welded joints (ISO 17637:2003)
EN ISO 17637:2011 pdf free download - Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2003). b) there are no tool impressions or blow marks; c) when weld dressing is required, overheating of the...
IEC 60840:2020 pdf free download – Power cables with extruded insulation and their accessories for rated voltagesabove 30 kV(Um = 36 kV) up to 150 kV(Um= 170 kV)-Test methods and requirements
IEC 60840:2020 pdf free download - Power cables with extruded insulation and their accessories for rated voltagesabove 30 kV(Um = 36 kV) up to 150 kV(Um= 170 kV)-Test methods and requirements 10.2 Frequency of tests The sample...
BS ISO188:2011 pdf free download – Rubber, vulcanized or thermoplastic一Accelerated ageing and heat resistance tests
BS ISO188:2011 pdf free download - Rubber, vulcanized or thermoplastic一Accelerated ageing and heat resistance tests. Avoid simultaneous heating of different types of compound in the same oven, to prevent the migration of sulphur, antioxidants, peroxides or plasticizers....
IEC 60809:2021 pdf free download – Lamps and light sources for road vehicles – Dimensional, electrical andluminous requirements
IEC 60809:2021 pdf free download - Lamps and light sources for road vehicles - Dimensional, electrical andluminous requirements The requirements for miniature light sources for supplementary purposes,not subject tolegislation,are specified in lEC 60983. NOTE 1 The terms...
IEC 62107:2000 pdf free download – super video compact disc – Disc-interchange system-specification
IEC 62107:2000 pdf free download - super video compact disc - Disc-interchange system-specification 1Scope This International Standard defines the basic specification of the Super Video Compact Disc,(SuperVCD), characterized by high resolution and high picture quality, which matches...
BS ISO 29845:2011 pdf free download – Technical product documentation – Document types
BS ISO 29845:2011 pdf free download - Technical product documentation - Document types. 3.2.29 structure diagram chart which shows the relation between different objects in a system or a product from different points of view presented graphically...
IEC 61131-7:2000 pdf free download – Programmable controllers
IEC 61131-7:2000 pdf free download - Programmable controllers 1 Scope and object This part of lEC 61131 defines a language for the programming of Fuzzy Control applicationsused by programmable controllers. The object of this part of lEC...
BS ISO 29664:2010 pdf free download – Plastics一Artificial weathering including acidic deposition
BS ISO 29664:2010 pdf free download - Plastics一Artificial weathering including acidic deposition. 6.1.3 Test duration The lifetime of products that are susceptible to degradation by acid deposition in polluted climates shows enormous variation because the acidic precipitation...
BS ISO 28801:2011 pdf free download – Double sampling plans by atributes with minimal sample sizes, indexed by producer’s risk quality (PRQ) and consumer’s risk quality (CRQ)
BS ISO 28801:2011 pdf free download - Double sampling plans by atributes with minimal sample sizes, indexed by producer's risk quality (PRQ) and consumer's risk quality (CRQ). 3.4 Notation A notation used to describe such plans is...