China Stable isotope 15N I GB Standards Search Result |
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1. Ready translated GB standards  and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within
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2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days . |
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GB/T 42488-2023 Soil quality - Determination of 15N abundance of inorganic nitrogen in soil - Stable isotope ratio mass spectrometry 土壤质量 土壤中无机态氮15N丰度的测定 稳定同位素比值质谱法 - 英文版 |
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GB/T 20622-2006 Stable isotope 15N Inorganic labelled compound 稳定性同位素15N无机标记化合物 - 英文版 |
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