Following articles are needed for proper testing:

• 12311

  Riffle sampler small amount

• 12211

  Preparation of grain size

• 12112

  Drying at 110 °C

• 40711

  Loss on ignition ISO 26845

• 44212

  Press tablet XRF

• 44111

  X ray fluorescense analysis DIN EN ISO 12677 - semiquantitative

* accredited test method