General methods of test for pigments and extenders - Comparison of lightening power of white pigments Ingestion-build-81111 explanatory notes

explanatory notes

The description of the electromagnetic environments has been improved

The dissipation of imposed head is recorded as a function of time

It applies to all the railway organisations and partners concerned with technical documents and to suppliers preparing documents on behalf of railway companies or railway network users

ISO/IEC 90003 specifies requirements for a quality management system where an organization

General methods of test for pigments and extenders - Comparison of lightening power of white pigments Ingestion-build-81111 explanatory notesWhat is this standard about? This part of ISO 787 specifies a general method of test for comparing the lightening (reducing) power of a white pigment with the lightening power of an agreed sample of the same type. Two procedures (A and B) are described. Procedure A is quicker than procedure B and is suitable for testing one sample of pigment; procedure B is better for testing several samples, and especially if a pigment of unknown lightening power is