Recommendations for storage conditions for silver image photographic plates for record purposes.

NEPLATNÁ vydána dne 28.2.1979

Equipment for harvesting. Combine harvesters. Determination and designation of grain tank capacity and unloading device performance.

NEPLATNÁ vydána dne 5.3.2003

Methods of test for boric acid, boric oxide, disodium tetraborates, sodium perborates and crude sodium borates for industrialuse. General introducion.

NEPLATNÁ vydána dne 30.10.1981

Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. General introduction.

NEPLATNÁ vydána dne 31.7.1986

Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. Determination of boric acid content of boric acid.

NEPLATNÁ vydána dne 28.2.1979

Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. Determination of matter insoluble in alkaline medium and preparation of test solutions of crude sodium borates.

NEPLATNÁ vydána dne 28.2.1979

Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. Determination of total aluminium content of crude sodium borates.

NEPLATNÁ vydána dne 28.2.1979

Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. Determination of total titanium content of crude sodium borates.

NEPLATNÁ vydána dne 28.2.1979

Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. Determination of particle size distribution of sodium perborates by mechanical sieving.

NEPLATNÁ vydána dne 28.2.1979

Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. Determination of chromium content of boric acid, boric oxide and disodium tetraborates.

NEPLATNÁ vydána dne 28.2.1979