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ISO 9241-300:2008 provides an introduction to the other parts in the ISO 9241 “300” subseries, and explains its modular structure. The ISO 9241 “300” subseries establishes requirements for the ergonomic design of electronic visual displays. These requirements are stated as performance specifications, aimed at ensuring effective and comfortable viewing conditions for users with normal or adjusted‑…

ISO 9241-304:2008 provides guidance for assessing the visual ergonomics of display technologies with user performance test methods (as opposed to the optical test methods given in ISO 9241-305). Its use will help to ensure that, for a given context of use, a display meets minimum visual ergonomics requirements. It covers only visual attributes and does not address the ergonomics or usability of…

IEC 60758:2008 applies to synthetic quartz single crystals intended for manufacturing piezoelectric elements for frequency control and selection. This edition includes the following significant technical changes with respect to the previous edition:<br /> - preparation of AT-cut slice sample for etching is changed to make it easier;<br /> - etch channel grade classification is changed…

IEC 60758:2008 applies to synthetic quartz single crystals intended for manufacturing piezoelectric elements for frequency control and selection. This edition includes the following significant technical changes with respect to the previous edition: - preparation of AT-cut slice sample for etching is changed to make it easier; - etch channel grade classification is changed considering request of…

IEC 60909-2:2008(E) comprises data of electrical equipment collected from different countries to be used when necessary for the calculation of short-circuit currents in accordance with IEC 60909-0. It may be applied for calculating short-circuit currents in low-voltage networks if they are in accordance with typical equipment employed in the user's country. The collected data and their…

1 Scope 1.1 This Standard specifies requirements for mineral oil of petroleum origin for use in transformers, oil circuit breakers, or other electrical equipment (excluding high-voltage cables) requiring a liquid insulating and cooling medium. 1.2 In CSA Standards, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with…

1 Scope 1.1 General This Standard specifies a test method for calculating the energy efficiency of external power supplies (EPS) across a full range of load conditions. It covers single-voltage external ac-dc and ac-ac power supplies, which provide one ac or dc output that is at a fixed voltage or user selectable through a selector switch. Note: External power supplies are designed to convert…

1 Scope 1.1 This Standard specifies a test method for determining the energy ratio of devices that charge and maintain secondary batteries. 1.2 This Standard applies to battery-charging systems with (a) battery chemistries such as nickel cadmium, lead acid, lithium ion, and nickel-metal hydride but not primary cell chemistries such as alkaline "dry" cells; (b) a battery voltage less…

1 Scope 1.1 This Standard specifies requirements for commercial and residential (a) area drains; (b) balcony drains; (c) deck drains; (d) floor drains; (e) roof drains; (f) shower drains; (g) trench drains; and (h) cleanouts. 1.2 This Standard covers the following subjects: (a) materials; (b) design requirements for (i) connections; (ii) fasteners; (iii) grates; (iv)…

1 Scope 1.1 This Standard specifies requirements for the periodic inspection of containment system components, including containment pressure suppression systems, in CANDU nuclear power plants. 1.2 The inspection requirements specified in this Standard provide assurance of the structural integrity of metallic and plastic containment system components. Note: The following are addressed by other…