This part of GB/T 14571 specifies the manual titration method and potentiometric titration method for the determination of the acidity of ethylene glycol for industrial use. The manual titration method in this part is suitable for the determination of industrial ethylene glycol with an acidity of 2 mg/kg~200 mg/kg, and the potentiometric titration method is suitable for the determination of industrial ethylene glycol with an acidity of 1 mg/kg~200 mg/kg. Determination.
GB/T 14571.1-2016 Referenced Document
GB/T 3723 Sampling of chemical products for industrial use--Safety in sampling
GB/T 601 Chemical reagent.Preparations of reference titration solutions
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
GB/T 6680 General rules for sampling liquid chemical products
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 14571.1-2016 history
2016GB/T 14571.1-2016 Test method of monoethylene glycol for industrial use—Part 1: Determination of acidity—Titration method
1993GB/T 14571.1-1993 Ethylene glycol for industrial use . Determination of acidity . Titrimetric method