Betekenis van:
calcium light

calcium light
Zelfstandig naamwoord
    • a lamp consisting of a flame directed at a cylinder of lime with a lens to concentrate the light; formerly used for stage lighting




    1. for moisture, crude ash, ash insoluble in hydrochloric acid and chlorides expressed as NaCl, total phosphorus, sodium, calcium carbonate, calcium, magnesium, acid index and matter insoluble in light petroleum:
    2. It should be mentioned that Veronese soils, which are light and clear, have a pH value of 7,5 or higher, due to the presence of calcium, and that the water is also always alkaline.