Dehydrated Appearance

White powder, free-flowing, homogeneous

Solution

5.0% solution, soluble in purified water upon boiling. Solution is colorless.

Prepared Appearance

Colorless solution.

Reaction of 5.0% Solution at 25°C

pH 7.4 ± 0.2

Staphylococcus aureu

Uniform turbid growth, precitptation at tube bottom, “+++”

Streptococcus pyogenes

Turbid pricipitation gorwth, “+——++”.

Shigella  sonnei

Uniform turbid growth, “+++——++++”

Salmonella  typhimurium

Uniform turbid growth, “+++——++++”

Pseudomonas aeruginosa

With plaque, “+++”.

Escherichia  coli

Uniform turbid growth, “++++”