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Detailed description

Chemical products GB 8577-2010 Determination of free water content in compound fertilizers Karl Fisc

Detection standard

  • Detection specification

Detection Standard

GB/T 6283- Determination of Water Content in Chemical Products, Karl Fischer Method (General Method) (GB/T 6283-2008, ISO 760:1978, NEQ)

GB/T 8571 Laboratory Sample Preparation of Compound Fertilizers

HG/T 2843 Fertilizer Products, Common Standard Dropping Solutions for Chemical Analysis, Standard Solutions Reagent solution and indicator solution

Principle

The free water in the sample is quantitatively reacted with Karl Fischer reagent with known water titrations, and the reaction formula is as follows: H: O+I:+SO:+3CaHsN=2CH: N · HI+CH; N-

Function of testing report:

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100% inspection and testing process:

1. Telephone communication and confirmation of requirements

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4. Progress tracking and result feedback

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6. If urgent or priority processing is required

Testing and testing characteristics:

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7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China


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