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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 15400-2018 |
Determination of tryptophan in feeds 饲料中色氨酸的测定 |
China National Standards Determination tryptophan feeds |
 English PDF |
| GB/T 15400-1994 |
Determination of tryptophan in feedstuffs--Spectrophotometry 饲料中色氨酸测定方法 分光光度法 |
China National Standards Determination tryptophan feeds |
English PDF |
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