This standard is applicable to the food additive, silica made by means of vapor phase method (the chlorosilane hydrolyzes in the oxyhydrogen flame) and precipitation method (including the gel method and it is generated by the reaction between sodium silicate solution and acid).
2 Normative References
The documents contain provisions which, through reference in this standard, constitute essential provisions of this standard. For dated references, only the dated edition of the normative document referred to applies. For undated documents, the latest edition of the normative document (including all the amendments) referred to applies.
