General methods of test for pigments and extenders - Comparison of lightening power of white pigments Ingestion-build-81111 Contents of BS ISO 27956:

Contents of BS ISO 27956:

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

BS EN 16636 is a European standard covering requirements and competences for Pest management services

and to the testing of automatic electrical pressure sensing controls used in

Both un-braced and braced systems are included

General methods of test for pigments and extenders - Comparison of lightening power of white pigments Ingestion-build-81111 Contents of BS ISO 27956:What 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