This standard specifies the determination of moisture holding capacity of ion exchange resins.
This standard is applicable to the determination of the moisture holding capacity of ion exchange resins that are free from any chemical changes when being continuously dried at (105~110)℃.
2 Normative references
The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 5475 Methods for sampling ion exchange resins
GB/T 5476 Methods of pretreating ion exchange resins
3 Method summary
Take certain amount of ion exchange resin sample which has absorbed the equilibrium moisture and also has been removed from the external moisture of the particles by centrifugation, and then remove the internal moisture by an oven drying method, and finally calculate the moisture holding capacity based on the decrease in mass.
Foreword I 1 Scope 2 Normative references 3 Method summary 4 Apparatuses 5 Operation procedures 6 Expression of results 7 Precision 8 Test report
1 Scope
This standard specifies the determination of moisture holding capacity of ion exchange resins.
This standard is applicable to the determination of the moisture holding capacity of ion exchange resins that are free from any chemical changes when being continuously dried at (105~110)℃.
2 Normative references
The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 5475 Methods for sampling ion exchange resins
GB/T 5476 Methods of pretreating ion exchange resins
3 Method summary
Take certain amount of ion exchange resin sample which has absorbed the equilibrium moisture and also has been removed from the external moisture of the particles by centrifugation, and then remove the internal moisture by an oven drying method, and finally calculate the moisture holding capacity based on the decrease in mass.
Contents of GB/T 5757-2008
Foreword I
1 Scope
2 Normative references
3 Method summary
4 Apparatuses
5 Operation procedures
6 Expression of results
7 Precision
8 Test report
