ASTM designation D2358-89 : Standard test method for separation of active ingredient from surfactant and syndet compositions.

MLA

Astm Designation D2358-89 : Standard Test Method for Separation of Active Ingredient From Surfactant and Syndet Compositions. West Conshohocken (Pa.): ASTM International, n.d.

APA

(n.d). ASTM designation D2358-89 : Standard test method for separation of active ingredient from surfactant and syndet compositions. West Conshohocken (Pa.): ASTM International.

Chicago

ASTM Designation D2358-89: Standard Test Method for Separation of Active Ingredient From Surfactant and Syndet Compositions. West Conshohocken (Pa.): ASTM International, n.d.