General Reference Standards
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Home/Product Catalog/General Reference Standards
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Ethylenediaminetetraacetic acid standard solution
(EDTA)=1%(wt)
$22.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Potassium nitrate standard solution
(KNO3)=0.1%(wt)
$22.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Sodium periodate standard solution
c(NaIO4)=0.1 mol/L
$37.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Ferric chloride solution
c(FeCl3·6H2O)=1 mol/L
$30.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Thiourea standard solution
c(CH4N2S)=75 g/L
$22.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Lead nitrate standard solution
c(Pb2+)=0.1 mol/L
$30.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Aluminum nitrate standard solution
c[Al(NO3)3]=1000 mg/L
$22.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Chemical Oxygen Demand Standard Solution
c(CODcr)=1000 mg/L(基体:0.05 mol/L硫酸)
$45.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Zinc standard reserve solution
c(Zn2+)=0.1 mg/mL
$11.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Sulfuric acid standard solution
c(1/2H2SO4)=0.1 mmol/L
$15.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Ammonium dihydrogen phosphate - palladium nitrate solution
c[Pd(NO3)2]=0.2 g/L,c[(NH4)H2PO4]=20 g/L
$120.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Standard hard water solution
c(Ca2+,Mg2+)=1000 ppm
$90.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Barium chloride solution
(BaCl2)=12.5%(wt)
$15.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Standard colorimetric solution (phosphate)
c[(PO4)2-]=2 μg/mL
$22.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Standard colorimetric solution (phosphate)
c[(PO4)2-]=0.01 mg/mL
$22.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Standard turbidity solution (carbon dioxide)
c(CO2)=0.1 mg/mL
$22.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Standard turbidity solution (sulfate)
c[(SO4)2-]=2 μg/mL
$22.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Standard turbidity solution (sulfate)
c[(SO4)2-]=0.04 mg/mL
$22.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Glucose standard solution
c(C6H12O6)=2.5 g/L
$15.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.
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Phosphate standard solution
c[(PO4)3-]=0.01 mg/mL
$30.00
This product is produced according to relevant international or national standards and can be used for titration analysis, qualitative and quantitative analysis, etc. The product should be stored in a cool and ventilated place, sealed and kept, and should be used within the validity period as much as possible. To obtain the quality inspection report (COA) of this product, please log in to www.codow.com.cn to query and download.







![Aluminum nitrate standard solution c[Al(NO3)3]=1000 mg/L](https://img.mroall.com//images/goods/codow/small_2828104_3193985.png)



![Ammonium dihydrogen phosphate - palladium nitrate solution c[Pd(NO3)2]=0.2 g/L,c[(NH4)H2PO4]=20 g/L](https://img.mroall.com//images/goods/codow/small_2828082_3193945.png)


![Standard colorimetric solution (phosphate) c[(PO4)2-]=2 μg/mL](https://img.mroall.com//images/goods/codow/small_2828067_3193919.png)
![Standard colorimetric solution (phosphate) c[(PO4)2-]=0.01 mg/mL](https://img.mroall.com//images/goods/codow/small_2828066_3193918.png)

![Standard turbidity solution (sulfate) c[(SO4)2-]=2 μg/mL](https://img.mroall.com//images/goods/codow/small_2828063_3193915.png)
![Standard turbidity solution (sulfate) c[(SO4)2-]=0.04 mg/mL](https://img.mroall.com//images/goods/codow/small_2828062_3193914.png)

![Phosphate standard solution c[(PO4)3-]=0.01 mg/mL](https://img.mroall.com//images/goods/codow/small_2828052_3193902.png)
