Methods of test for phosphoric acid for industrial use. Determination of iron content.

NEPLATNÁ vydaná dňa 31.1.1968

Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of oxides of nitrogen content.

NEPLATNÁ vydaná dňa 31.1.1978

Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of lead content (atomic absorption spectrometric method).

NEPLATNÁ vydaná dňa 30.11.1982

Methods of test for phosphoric acid for industrial use.. Determination of iron content.

NEPLATNÁ vydaná dňa 31.1.1968

Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of sulphate content.

NEPLATNÁ vydaná dňa 30.9.1975

Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of silica content.

NEPLATNÁ vydaná dňa 30.1.1976

Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of arsenic content.

NEPLATNÁ vydaná dňa 30.6.1976

Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of total phosphorus (V) oxide content: quinoline phosphomolybdate gravimetric method.

NEPLATNÁ vydaná dňa 31.1.1978

Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of chloride content.

NEPLATNÁ vydaná dňa 31.1.1978

Metallic materials. General organization of standardization. Links between types of EN standards and their use.
(Letectví a kosmonautika - Kovové materiály - Všeobecné uspořádání normalizace - Vazby mezi druhy EN a jejich použitím.)

NEPLATNÁ vydaná dňa 15.10.1998