| CHN 001 | Analysis of different organic standards |
| CHN 002 | CNS analysis in reference soil samples |
| CHN 007 | CNS- determination in plant samples |
| CHN 008 | CHN - S determination in solid and liquid fuels |
| CHN 009 | Nitrogen and protein determination in food and animal food |
| CHN 011 | CHNS determination in fluorinated samples |
|
CHN 013 |
Homogenisation of inhomogen soil samples |
| CHN 014 | CHNS determination in difficult organic and inorganic samples |
| CHN 016 | Oxygen determination in stable isotopes such as silicon oxide, aluminium oxide and titanium oxide |