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Electricity metering equipment (a.c.). General requirements, tests and test conditions. Part 21. Tariff and load control equipment
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Organic dyes. Concentrated scarlet pigment. Specifications
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Reinforcing, alkali-resistant meshes of glass fibre for building-faces. Specifications
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Silicone based rubber gaskets and accessories. Technical requirements
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Pneumatic tires. Measurement of rolling resistance by deceleration method.
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