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Particle—Size analysis—Color image analysis methods
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GB/T 38879-2020. Particle- Size analysis- Color image analysis methods. 1 Scope GB/T 38879 specifies the methods for the collectio
2024-05-30 category：National Standard (GB)+ View
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Low impact development stormwater management and harvest—Facility classification
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GB/T 38906-2020. Low impact development stormwater management and harvest-Facility classification. 1 Scope GB/T 38906 specifies th
2024-05-30 category：National Standard (GB)+ View
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Metallic and other inorganic coatings—Phosphate conversion coating of metals
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GB/T 11376-2020.Metallic and other inorganic coatings-Phosphate conversion coating of metals. 1 Scope GB/T 11376 specifies the met
2024-05-30 category：National Standard (GB)+ View
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Thermal spraying—Procedures for the application of thermally sprayed coatings for engineering components
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GB/T 19823-2020. Thermal spraying-Procedures for the application of thermally sprayed coatings for engineering components. 1 Scope
2024-05-30 category：National Standard (GB)+ View
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Emergency guidance systems—Setting principles and requirements—Part 1:Inside buildings
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GB/T 23809.1-2020. Emergency guidance systems-Setting principles and requirements-Part 1: Inside buildings. 1 Scope This part of G
2024-05-30 category：National Standard (GB)+ View
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Rules for the presentation of graphical symbols—Part 4:Method for testing symbol referent association
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GB/T 16900.4-2020.Rules for the presentation of graphical symbols-Part 4:Method for testing symbol referent association. 1 Scope T
2024-05-30 category：National Standard (GB)+ View
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Cooling summer grades
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GB/T 38950-2020.Cooling summer grades. 1 Scope GB/T 38950 specifies the index, calculation method and classification of cool summe
2024-09-16 category：National Standard (GB)+ View
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Warm winter grades
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GB/T 21983-2020.Warm winter grades. 1 Scope GB/T 21983 specifies the determination method and grade classification of warm winter
2024-09-16 category：National Standard (GB)+ View
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