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    a 1 recovery

    Check the news of a 1 recovery. Find top topics, trends and opinion of a 1 recovery you need on echemi.com.
    • Industrial Glycine (Glycine) (1)

      Time of Update: 2021-10-18
      3. 2 Industrial glycine shall meet the technical requirements shown in Table 1 .
    • Southwest Drill No. 1: Yongye 10-2HF Well No. 2 single drill bit set a record

      Time of Update: 2021-10-18
      Recently, Southwest Petroleum Engineering Company Drilling No. 1 Branch 50789 team set two records in the Yongye 10-3HF well, and created the Yongchuan shale gas block with 1515
    • Industrial L-cystine (1)

      Time of Update: 2021-10-18
      1 Subject content and scope of applicationThis standard specifies the technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of industrial L-cystine .
    • Nitromethane for industrial use (1)

      Time of Update: 2021-10-18
      For undated reference documents, the latest version is applicable to this standard .
    • Zhongyuan Drill II: Well Yuanshen 1 successfully completed the surface casing construction

      Time of Update: 2021-10-17
      Started in many ways, strengthened the implementation of measures and strengthened process management and control to ensure the smooth progress of this casing running operation.
    • Industrial cobalt acetate (1)

      Time of Update: 2021-10-16
      3. 2 The quality of industrial cobalt acetate should meet the requirements of Table 1 .
    • Industrial Acetanilide (1)

      Time of Update: 2021-10-16
      1 Subject content and scope of applicationThis standard specifies the technical requirements, test methods, inspection rules and signs, packaging, transportation and storage of industrial acetanilide .
    • Industrial manganese acetate (1)

      Time of Update: 2021-10-16
      1 ScopeThis standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, and storage of industrial manganese acetate .
    • Industrial antimony acetate (1)

      Time of Update: 2021-10-16
      3. 2 The quality of industrial antimony acetate should meet the requirements of Table 1 .
    • Industrial ethyl acetoacetate (1)

      Time of Update: 2021-10-15
      1 Subject content and scope of applicationThis standard specifies the technical requirements, test methods, inspection rules and signs, packaging, transportation and storage of ethyl acetoacetate .
    • Industrial Chloromethyl Methyl Ether (1)

      Time of Update: 2021-10-15
      1 Subject content and scope of applicationThis standard specifies the technical requirements, test methods, inspection rules and signs, packaging, transportation and storage of industrial chloromethyl methyl ether .
    • Cetyl Alcohol (1)

      Time of Update: 2021-10-15
      Reference standards>Preparation of standard solution for GB/T601 chemical reagent titration analysis (volume analysis)>Preparation of preparations and products used in GB/T603 chemical
    • Bromoethane for industrial use (1)

      Time of Update: 2021-10-15
      1 ScopeThis standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage and safety of bromoethane for industrial use .
    • Industrial methyl methacrylate (1)

      Time of Update: 2021-10-15
      1 Subject content and scope of applicationThis standard specifies the technical requirements, test methods, inspection rules and signs, packaging, transportation, and storage of industrial methyl methacrylate .
    • Industrial p-chlorophenol (1)

      Time of Update: 2021-10-15
      standards>GB190 dangerous goods packaging mark>Preparation of preparations and products used in GB/T603 chemical reagent test method>The expression method
    • Industrial chloroethanol solution (1)

      Time of Update: 2021-10-15
      1 Subject content and scope of application>This standard specifies the technical requirements, test methods, inspection rules and signs, packaging
    • 1-Phenyl-3-methyl-5-pyrazolone (two)

      Time of Update: 2021-10-15
      3. 1 Method summaryThe standard titration solution of 1-phenyl-3-methyl-5-pyrazolone and sodium nitrite undergoes nitrosation reaction under acidic conditions, and the end point is indicated by starch-potassium iodide test paper .
    • Thermal oil-400 (biphenyl-diphenyl ether mixture) (1)

      Time of Update: 2021-10-15
      3. 2 Heat transfer oil-400 (biphenyl-diphenyl ether mixture) should meet the requirements of the following table:  
    • 1-Phenyl-3-methyl-5-pyrazolone (one)

      Time of Update: 2021-10-15
      This standard applies to the product quality inspection of 1-phenyl-3-methyl-5-pyrazolone .
    • Industrial neopentyl glycol (1)

      Time of Update: 2021-10-15
      1 Subject content and scope of applicationThis standard specifies the technical requirements, test methods, inspection rules and signs, packaging, transportation, and storage of neopentyl glycol .

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