GB - Chinese national standards

Analysis of water used in boil and cooling system Determination of ammonia-Phenol method

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Determination of silica in water for industrial circulating cooling system and boiler

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Analysis of water used in boiler and cooling system-Determination of turbidity-Formazine turbidity

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Water for boiler and cooling system-Determination of mineral oil

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Analysis of water used in boiler and cooling system - Determination of total aluminium

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Determination of dissolved oxygen in water for industrial circulating cooling system and boiler

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General requirements for preventing electrostatic accidents

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External micrometer

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Metallic materialsCalibration of extensometers systems used in uniaxial testing

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X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy—Part 1:Radiation characteristics and production methods

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