1 Scope
This part specifies the principle, reagents and materials, apparatus, sampling and sample preparation, analytical procedures, result calculation and the like for the determination of manganese content by potentiometric method and ammonium iron (II) sulphate titrimetric method.
This part is applicable to the determination of manganese content in manganese ores and concentrates. Method II is not applicable to the determination of manganese content in the manganese ores and concentrates with vanadium content (mass fraction) larger than 0.05%. Determination scope (mass fraction): Method I, i.e. potentiometric method, is larger than or equal to 15.00%; Method II, i.e. ammonium iron (II) sulphate titrimetric method, is 8.00%~60.00%.
2 Normative References
The following normative documents contain provisions which, through reference in this part, constitute provisions of this part. For dated reference, subsequent amendments to (excluding amending corrections to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this part are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document referred to applies.
GB/T 2011 Method of Sampling and Sample Preparation of Manganese Ores in Bulk
GB/T 14949.8-1994 Manganese Ores-Determination of Hygroscopic Moisture Content in Analytical Samples
3 Method I Potentiometric Method
Foreword I
1 Scope
2 Normative References
3 Method I Potentiometric Method
4 Method II Ammonium Iron (II) Sulphate Titrimetric Method
