B13 肥料与土壤调理剂 标准查询与下载

NF U42-001/A2:1984 NF U 42-001-81的补充件2

Supplement 2 to NF U 42-001-81

NF U44-171:1982 污泥.有机改良剂.培养基.干物质的测定

Sludge - Organic amendments - Culture media - Determination of dry matter

BS 5551-4.1.2:1982 肥料 化学分析 氮的测定 氨氮的测定 蒸馏后滴定法

This International Standard specifies a titrimetric method, after distillation, for the determination of the ammoniacal nitrogen content of fertilizers. The method is applicable only in the absence of urea or its derivatives, of cyanamide and of organic nitrogenous compounds.

Fertilizers. Chemical analysis. Determination of nitrogen. Determination of ammoniacal nitrogen, titrimetric method after distillation

GOST 4.77-1982 矿物肥料.指标项目

Настоящий стандарт распространяется на минеральные удобрения ( подкласс 218, за исключением подгруппы 218230 на кормовые фосфаты) и устанавли

Anality indeces system. Fertilizers mineral. Indices nomenclature

NF U44-071:1981 含肥料的有机土壤改良剂.类型和规范

Organic soil conditioners with fertilizer. Types and specifications.

NF U44-051:1981 有机土壤改良剂.类型和规范

Organic soil conditioners. Types and specifications.

BS 5551-4.1.1:1981 肥料.第4部分:化学分析.第1节:氮含量测定.第1小节:硝酸盐基氮硝酸氮重量测定法

Reference method applicable to all fertilizers.

Fertilizers - Chemical analysis - Determination of nitrogen - Nitron gravimetric method for determination of nitrate nitrogen

NF U42-051:1968 肥料.取样和批量评价的理论

Fertilizers. Theory of sampling and batch evaluation.