**4.5 Homogenization and dilution solutions**

Although "normal saline" (0.85% NaCl; Merck 1.06404) has been used as diluting solution for general purpose, "Maximum Recovery Diluent (Merck 1.12535) which has the formula of Normal Saline (0,85%) + Peptone (0,1%) in accordance with ISO 6887 is used recently. This solution is also referred as "peptone-saline". Furthermore, 0.1% peptone solution (Merck 1.07214) and "Buffered Peptone Water" (Merck 1.07228) which is used in *Salmonella* analysis are used for dilution in accordance with ISO 6887.
