HGW: Copper, Average total content (surface)
Description
The mean is the median (synonym: 50. percentile, central value). It is the value above or below which 50% of all cases of a data group are located. The calculation is carried out on outlier-adjusted data collectives. The total content is determined from the aqua regia extract (according to DIN ISO 11466 (1997)). The concentration is given in mg/kg. The salary classes take into account, among other things, the pension values of the BBodSchV (1999). These are 20 mg/kg for sand, 40 mg/kg for clay, silt and very silty sand and 60 mg/kg for clay. According to LABO (2003) a sample count of >=20 is required for the calculation of background values. However, the map also shows groups with a sample count >= 10. This information is then only informal and not representative.
Resources
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https://www.geoportal.rlp.de/mapbender/php/mod_exportIso19139.php?url=https%3A%2F%2Fwww.geoportal.rlp.de%2Fmapbender%2Fphp%2Fmod_dataISOMetadata.php%3FoutputFormat%3Diso19139%26id%3De3ae07e5-e8b8-3d7a-6f1d-365a83b520cc |