,,3 components: Phosphates (PO43-) 50mg/l Chlorides (Cl-) 0.5mg/l Sulphates (SO42-) 0.5mg/l in Water ,, ,,CRM, ISO 17034 and ISO 17025,, ,,Conservation 8 months. (4 months after opening),, ,,Ambient Temp.,, 1 * 500 mL