This standard specifies the test method of soluble fluoride of dental materials. The soluble fluoride in this standard includes fluoride released by materials directly dissolving in water and fluoride dissolved in water after different treatment methods on the materials.
This standard is applicable to determination of soluble fluoride content in materials for dental repair, adhesion and prevention and healthcare.
2 Method
2.1 Apparatus
2.1.1 Acidometer (potentiometer)
2.1.2 Composite fluoride electrode
2.1.3 Electronic balance (0.0001 g).
2.2 Reagents
2.2.1 Sodium fluoride: guaranteed reagent or analytical reagent.
1 Scope
This standard specifies the test method of soluble fluoride of dental materials. The soluble fluoride in this standard includes fluoride released by materials directly dissolving in water and fluoride dissolved in water after different treatment methods on the materials.
This standard is applicable to determination of soluble fluoride content in materials for dental repair, adhesion and prevention and healthcare.
2 Method
2.1 Apparatus
2.1.1 Acidometer (potentiometer)
2.1.2 Composite fluoride electrode
2.1.3 Electronic balance (0.0001 g).
2.2 Reagents
2.2.1 Sodium fluoride: guaranteed reagent or analytical reagent.
2.2.2 Cyclohexanediaminetetraacetic acid(CDTA): analytical reagent.
2.2.3 Sodium chloride: analytical reagent.
2.2.4 Glacial acetic acid: analytical reagent.
2.2.5 6 mol/L sodium hydroxide.
2.2.6 5 mol/L hydrochloric acid.
2.2.7 10% sodium carbonate.
2.2.8 Water: test water shall meet the specification of Grade 3 water in GB 6682.
2.3 Testing environment
Contents of YY 0623-2008
Foreword i
Introduction ii
1 Scope
2 Method
Reference
