| CPF81 | ||||||
| Order No. | Description | recommend | Tk | Location | group | effective |
| CPY20- | PH Standard CPY20 pH quality buffer solution, referencedto primary reference material of PTBand standard reference material of NIST.With calibration certificate buffersolution | A | not classified. | |||
| CPY4- | KCl Electrolyte CPY4 For liquid filled electrodes | A | not classified. | |||