1.1 This specification covers the pigments commercially known as raw umber and burnt umber.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.1 This specification covers the pigments commercially known as raw umber and burnt umber.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
