Classification opinions
… agent, for use in the manufacture of a washing preparation, by adding, e.g., detergents. Adoption : 1969 + 1994 … 2. … calcium and silicon and whose composition cannot be defined by a constant ratio of elements. Adoption : 1995 … 7. … calcium bentonite mixed with small amounts (1 % to 4 % by weight) of sodium carbonate (soda ash), which, when …