The method of preparation is considered proprietary. However, the term 'bacteriostatic' typically implies the presence of benzyl alcohol. No benzyl alcohol is present in the water used to prepare this product.
The composition is as follows:
0.2 g/L KCL
0.2 g/L KH2PO4
8.0 g/L NaCl
1.15 g/L Na2HPO4 (anhydrous)
With the pH adjusted to pH 7.0 to 7.1 using HCl.