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The REACH regulation defines them as exposure levels beneath which a substance does not harm human health. [1] According to the EU REACH legislation , manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any chemicals used in quantities of 10 tonnes or more per ...
Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) is a European Union regulation dating from 18 December 2006, [1] amended on 16 December 2008 by Regulation (EC) No 1272/2008. [2] REACH addresses the production and use of chemical substances, and their
Gustaf Erik Pasch (born Berggren) (3 September 1788 – 6 September 1862) was a Swedish inventor and professor of chemistry at Karolinska institute in Stockholm and inventor of the safety match. He was born in Norrköping , the son of a carpenter .
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In 1845 Lundström started to experiment with safety matches in a small workshop he had rented. The safety match had been invented by Gustaf Erik Pasch (1788–1862) in 1844, but was difficult to produce commercially. In 1846 his younger brother Carl Frans Lundström (1823–1917) joined his small workshop.
Following the ideas laid out by the French chemist Charles Sauria, who in 1830 invented the first phosphorus-based match by replacing the antimony sulfide in Walker's matches with white phosphorus, matches were first patented in the United States in 1836, in Massachusetts, being smaller in size and safer to use. White phosphorus was later ...
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