Lead surcharge

This article or the following section is not adequately provided with supporting documents ( e.g. individual evidence ). Information without sufficient evidence could be removed soon. Please help Wikipedia by researching the information and including good evidence.

Lead surcharge is a term from:

• the mining was lead in the mined ore a supplement, because it has a low melting point forms (327 ° C) and easily with other metals alloys.
• In lead glass production , black lead is a component that reduces the melting range of the glass, increases the flowability and the refractive index , flint glass and rhinestones have a lead surcharge of around 20 percent.
• The calculation (see also price escalation clause ) to compensate for fluctuating raw material prices such as silver, copper, aluminum, lead and / or gold, daily surcharges are determined, which are offset in addition to the price of a non-ferrous metal product if the basic price of the respective raw material is exceeded.
• the mineral oil tax on fuels. The lead surcharge meant, on the one hand, the lead content in leaded petrol, which should increase the knock resistance , and, on the other hand, the levying of taxes on this.

Individual evidence

1. ^ German Bundestag Stenographic Report 237th Session Bonn. October 15, 1986, p. 28 , accessed September 22, 2018 .