GOST R 58766-2019

Fertilizers. Determination of different forms of nitrogen in the same sample: nitric, ammoniacal, cyanamide and urea nitrogen

State system for ensuring the uniformity of measurements. Direct current electronic analogue voltmeters. Methods and means of calibration

Reagents. Methods for determination of aldehydes impurity

Yuft upper leather. Determination of grade

System of standards on information, librarianship and publishing. Format for representation on machine-readable media of information retrieval languages vocabularies and terminological data. Content of a record

Bismuth concentrate. Atomic absorption method for determination of gold