General methods of test for pigments and extenders - Comparison of lightening power of white pigments Ingestion-build-81111 Both un-braced and braced systems

Both un-braced and braced systems are included

BS EN 1642 is the British Standard that specifies the general requirements for dental implants and accessories

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

columns and bearing piles are given in BS EN 10034

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

General methods of test for pigments and extenders - Comparison of lightening power of white pigments Ingestion-build-81111 Both un-braced and braced systemsWhat 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