Pigments and extenders. Methods of dispersion and assessment of dispersibility in plastics - Determination by film test subscription-only 13 µg/cm2 has been established

13 µg/cm2 has been established as “inconclusive” to reduce inconsistent results due to unavoidable coating variations

step-and-repeat machine or other automated processor

It does this by providing a path (a protective conductor) for a fault current to flow to the earth

BS 3746 is a British standard that serves specifications for PVC garden hoses

formed in corrosion cells at the bottom of discontinuities in metallic coatings migrate to treated test paper held in contact with the coating surface

Pigments and extenders. Methods of dispersion and assessment of dispersibility in plastics - Determination by film test subscription-only 13 µg/cm2 has been established1 Scope This part of ISO 23900 specifies a method assessing the degree of dispersion of colorants1 and or extenders in a thermoplastic polymer. The method is suitable for testing colorants and or extenders in the form of concentrates or compounds in all polymers used for extrusion processes. NOTE Defects such as gels, black specks, holes in the test film are not in the scope of this part of ISO 23900. The film test result determined according to this