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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 42307-2023 |
Fertilizers and soil conditioners - Determination of biuret content in urea-based fertilizers - High performance liquid chromatography {译} 肥料和土壤调理剂 尿素基肥料中缩二脲含量的测定 高效液相色谱法 |
China National Standards biuret |
 English PDF |
| GB/T 2441.2-2010 |
Determination of urea - Part 2: biuret content - Spectrophotometric method 尿素的测定方法 第2部分：缩二脲含量 分光光度法 |
China National Standards biuret |
English PDF |
| GB/T 22924-2008 |
Determination of biuret content for compound fertilizers（complex fertilizers） 复混肥料（复合肥料）中缩二脲含量的测定 |
China National Standards biuret |
English PDF |
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