复合肥料中游离水含量快速检测方法的探讨 - 202301 - 肥料与健康
复合肥料中游离水含量快速检测方法的探讨
Discussion on Rapid Detection Method of Free Water Content in Compound Fertilizer
doi: 10.3969/j.issn.2096-7047.2023.01.014
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摘要:

为解决国家标准《复混肥料中游离水含量的测定 真空烘箱法》(GB/T 8576—2010)检测时间较长的问题,根据GB/T 8576—2010的测定原理,对不同类型复合肥的干燥温度和干燥时间进行了试验。结果表明,复合肥料样品在烘箱中于75 ℃烘干5 min后测定,所得结果与采用GB/T 8576—2010中方法测定值的绝对差值符合GB/T 8576—2010的要求,可作为指导复合肥生产的中控指标。

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Abstract:

In order to solve the problem of long detection time in the national standard Determination of free water for compound fertilizers—Vacuum oven method (GB/T 8576—2010), the drying temperature and drying time period of different types of compound fertilizers are tested according to the determination principle of GB/T 8576—2010. The results show that the absolute difference between the results obtained and the values measured by the method in GB/T 8576—2010 met the requirements of GB/T 8576—2010 after the compound fertilizer samples are dried in the oven at 75 ℃ for 5 minutes, and can be used as the control index to guide the production of compound fertilizer.

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