Online Standards Store PDF
Regulatory document on standardization. Procedural guidelines. Quality standard for heating and make-up water of hot-water boilers, organization of water chemistry and chemical control
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Regulatory document. Water hardness. Measurement technique using trilon B titrimetric method
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Design guidelines for urban public utility electrical networks (with amendments as of 29.06.1999)
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Guidelines on the protection of 6-1150 kV electrical circuits against lightning and internal overvoltages. All 3 parts
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Standard instruction for metering electricity in its production, transmission and distribution
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