Tiêu chuẩn Quốc gia TCVN 12123:2017
Tiêu chuẩn Quốc gia TCVN 12123:2017 quy định các phương pháp thể tích để xác định hàm lượng axit humic tổng và hàm lượng axit humic tự do của than nâu và than non. Mời các bạn cùng tham khảo.
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Chịu trách nhiệm nội dung: Nguyễn Công Hà
Doanh nghiệp quản lý: Công ty TNHH Tài Liệu Trực Tuyến Vi Na - GCN ĐKDN: 0307893603
Địa chỉ: 54A Nơ Trang Long, P. Bình Thạnh, TP.HCM - Điện thoại: 0283 5102 888 - Email: info@tailieu.vn
Giấy phép Mạng Xã Hội số: 38/GP-BVHTTDL cấp ngày 09/3/2026