Кислота борная фотографическая. Технические условия
Название (англ.):
Photographic grade boric acid; Specification
Описание (англ.):
Specified are the required purity and test methods for boric acid of photographic grade. Defined are the necessary chemical and physical properties. If feasible, only those tests are specified which can be carried out in a normally equipped laboratory, and the number of reagents to be used was kept as low as possible.