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GOST 2-2013, grade B. Nitrogen content is 34,4% |
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GOST 9-92, grades A, B. Nitrogen content is 25% |
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TU 2182-15-002-064-86-2000. Calcium carbonate content is 85% |
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GOST 5583-78. Oxygen content is 99,7% |
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GOST 6221-90, grades A, Ak, B. Nitrogen content is 82,3% |
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TU 2186-031-00206486-2013. TU 2186-030-00206486-2009. TU 2186-029-00206486-2009. |
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TU 2144-028-00206486-2008 Content of CaCO3 , %, minimum: grade A — 93,0 ; grade B — 80,0 |
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