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.
1 Scope 2 Normative References 3 Molecular Formula and Relative Molecular Mass 4 Classification 5 Technical Requirements Appendix A (Normative) Inspection Method A.1 Warning A.2 General Requirements A.3 Identification Test A.4 Determination of Silica A.5 Determination of Loss on Drying A.6 Determination of Loss on Ignition A.7 Determination of Lead A.8 Determination of Heavy Metals A.9 Determination of Arsenic A.10 Determination of the Soluble Dissociated Salt
1 Scope
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.
Contents of GB 25576-2010
1 Scope
2 Normative References
3 Molecular Formula and Relative Molecular Mass
4 Classification
5 Technical Requirements
Appendix A (Normative) Inspection Method
A.1 Warning
A.2 General Requirements
A.3 Identification Test
A.4 Determination of Silica
A.5 Determination of Loss on Drying
A.6 Determination of Loss on Ignition
A.7 Determination of Lead
A.8 Determination of Heavy Metals
A.9 Determination of Arsenic
A.10 Determination of the Soluble Dissociated Salt
