Valsts valodas centra izstrādātie ķīmijas un ķīmiskās tehnoloģijas termini

Konteksts: [..] The concentration of gas in air is increased step by step and the mixture is exposed at each stage to an electrical spark [..]
Avots: COMMISSION DIRECTIVE of 25 April 1984 adapting to technical progress for the sixth time Council Directive 67/548/EEC on the approximation of laws, regulations and administrative provisions relating to the classification, packaging and labelling of dangerous substances (84/449/EEC)