State systems of measurement assurance of the Republic of Kazakhstan. Ion-selective electrodes to determine ion activity (concentration) in water solutions. Verification procedure
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State systems of measurement assurance of the Republic of Kazakhstan. Glass electrodes, including combined electrodes, to determine hydrogen ions activity (pH) in water solutions. Verification procedure
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Wires are self-supporting, insulated and protected for overhead power lines. Technical conditions
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Telecommunication lines Lightning protection
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Explosive atmospheres. Part 11. Protection of equipment by means of intrinsic safety "I". Introduced for the first time. Date of introduction since 2011.01.01
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Electric cables Calculation of the rated current load Part 2-2 Thermal resistance Method of calculating the reduction factors for the permissible current load for groups of overhead cables with protection from solar radiation
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Power cables of extruded insulation and cable fitting for rated voltage from 1 kV (Um=1, 2 kV) to 30 kV (Um=36 kV). Part 1. Cables for rated voltage 1 kV (Um=1, 2 kV) and 3 kV (Um=3, 6 kV)
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Optical fibers Part 2-10 Specifications for products Group specifications for multimode fibers of category A1
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Optical cables TENSION STRENGTH MEASUREMENT METHODS
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Optical cables Methods for measuring hydrogen concentration
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