GB/T 26812-2011Preparation method of reference solutions for the measurement of ion selective electrodes (English PDF)
离子选择电极校准溶液制备方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 29, 2011
Implementation date
December 1, 2011
Scope
GB/T 26812-2011 is the English-translated version of 离子选择电极校准溶液制备方法.
GB/T 26812-2011 is the Chinese standard "Preparation method of reference solutions for the measurement of ion selective electrodes". Its scope clause reads: This standard specifies the ion selective electrode calibration solution prepared using reagents, equipment, and other steps.
This standard applies to sodium, chloride fluoride ions prepared, nitrate ion selective electrode, the ammonia gas sensor calibration solutions. This standard also applies to the preparation of the corresponding calibration solution meter ion concentration.
Category 2 solution This column has six standard solution, the concentration of the composition shown in Table 1.
Table 1 solution and concentration of species Solution code name solution Reagents Name Formula Stock concentration mol/L Calibration solution concentration mol/L a sodium chloride NaCl 10-1 10-1 ~ 10-8 b sodium chloride NaCl 10-1 10-1 ~ 10-6 c fluoride ion sodium fluoride NaF 10-1 10-1 ~ 10-7 d ammonium chloride NH4Cl 10-1 10-1 ~ 10-6 e ion potassium nitrate KNO3 10-1 10-1 ~ 10-5 f potassium chloride KCl 10-1 10-1 ~ 10-5. Its clauses include reagents; device.
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Document preview — GB/T 26812-2011
National Standard of the People's Republic of China
- ICS
- 71.040.01
- Classification
- N 53
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
1 Scope
This standard specifies the ion selective electrode calibration solution prepared using reagents, equipment, and other steps.
This standard applies to sodium, chloride fluoride ions prepared, nitrate ion selective electrode, the ammonia gas sensor calibration solutions.
This standard also applies to the preparation of the corresponding calibration solution meter ion concentration.
Category 2 solution
This column has six standard solution, the concentration of the composition shown in Table 1.
Table 1 solution and concentration of species
Solution code name solution
Reagents
Name Formula
Stock concentration mol/L
Calibration solution concentration mol/L a sodium chloride NaCl 10-1 10-1 ~ 10-8 b sodium chloride NaCl 10-1 10-1 ~ 10-6 c fluoride ion sodium fluoride NaF 10-1 10-1 ~ 10-7 d ammonium chloride NH4Cl 10-1 10-1 ~ 10-6 e ion potassium nitrate KNO3 10-1 10-1 ~ 10-5 f potassium chloride KCl 10-1 10-1 ~ 10-5
3 Reagents
Test reagents.
a) Sodium chloride. pure class distinctions;
b) Sodium fluoride. pure class distinctions;
c) ammonium chloride. pure class distinctions;
d) nitrate. pure class distinctions;
e) Potassium chloride. pure class distinctions;
f) Water. conductivity of not more than 0.1 × 10-6S/cm (Na + 0.2 × 10-6S/cm) of deionized water;
g) ammonium-free water. in accordance with Appendix A preparation;
h) sub-boiling water.
4 Device
Test equipment and utensils used.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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