ISO 3180:2023
(Main)Fine ceramics (advanced ceramics, advanced technical ceramics) — Methods for chemical analysis of calcium-phosphate-based powders for non-biomedical applications
Fine ceramics (advanced ceramics, advanced technical ceramics) — Methods for chemical analysis of calcium-phosphate-based powders for non-biomedical applications
This document specifies wet chemical and inductively coupled plasma–optical emission spectrometry (ICP–OES)-based methods for the chemical analysis of calcium-phosphate-based powders for non-biomedical applications, such as those in the chemical industry, the treatment of air, water and soil contamination. It stipulates the methods used for the determination of major elements of calcium-phosphate-based powders and their impurities. Calcium-phosphate-based powders are decomposed by acid decomposition. The calcium content is determined using a titration method or an ICP–OES method. The phosphorus content is determined using a precipitation and gravimetric method or an ICP–OES method. Certain impurities, such as aluminium, barium, chromium, copper, iron, magnesium, manganese, nickel, potassium, selenium, silicon, sodium, strontium, titanium and zinc contents, are determined by an ICP–OES method. This document does not include calcium-phosphate-based powders for biomedical applications. The ISO 13779 series characterizes hydroxyapatite powders for biomedical applications using various methods, such as atomic absorption spectrometry (AAS), inductively coupled plasma–mass spectrometry (ICP–MS) and flame atomic absorption spectrometry (FAAS).
Céramiques techniques — Méthodes d'analyse chimique des poudres à base de phosphate de calcium pour applications non biomédicales
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 3180
First edition
2023-07
Fine ceramics (advanced ceramics,
advanced technical ceramics) —
Methods for chemical analysis of
calcium-phosphate-based powders for
non-biomedical applications
Céramiques techniques — Méthodes d'analyse chimique des poudres à
base de phosphate de calcium pour applications non biomédicales
Reference number
© ISO 2023
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ii
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Analytical ranges. 2
5 Preparation of test sample . 2
5.1 General . 2
5.2 Sampling . 2
5.3 Drying . 2
5.4 Weighing . 2
6 Reporting analytical values . 2
6.1 Number of analyses . 2
6.2 Blank test . 2
6.3 Evaluation of analytical results . 2
6.4 Expression of analytical results . 3
7 Decomposition of test sample .3
7.1 Reagents . 3
7.2 Apparatus . 3
7.3 Procedure . 3
7.3.1 Decomposition . . 3
7.3.2 Dilution . 3
7.4 Blank test . 3
8 Determination of phosphorus and calcium contents . 4
8.1 Classification of determination methods . 4
8.2 Precipitation and gravimetric method (for phosphorus) . 4
8.2.1 Principle . 4
8.2.2 Reagents . 4
8.2.3 Apparatus . 4
8.2.4 Procedure . 5
8.2.5 Blank test . 5
8.2.6 Calculation . 5
8.3 Titration method (for calcium) . 5
8.3.1 Principle . 5
8.3.2 Reagents . 5
8.3.3 Apparatus . 6
8.3.4 Procedure . 6
8.3.5 Blank test . 7
8.3.6 Calculation . 7
8.4 ICP–OES method (for calcium and phosphorus) . 7
8.4.1 Principle . 7
8.4.2 Reagents . 7
8.4.3 Apparatus . 8
8.4.4 Procedure . 8
8.4.5 Measurement . 9
8.4.6 Drawing of calibration curve . 9
8.4.7 Calculation . 10
9 Determination of impurity elements .11
9.1 Principle . 11
9.2 Reagents . 11
9.3 Apparatus .12
9.4 Procedure .12
iii
9.4.1 Preparation of sample test solutions .12
9.4.2 Preparation of calibration standard solutions .12
9.4.3 Preparation of blank test solution . 13
9.5 Measurement . 13
9.5.1 Set up of the instrument . 13
9.5.2 Measurement of sample test solution and calibration standard solutions .13
9.5.3 Measurement of blank test solution . 13
9.6 Drawing of the calibration curve . 14
9.7 Calculation . 14
10 Test report .14
Annex A (informative) Decomposition of insoluble precipitate using alkali fusion method .15
Annex B (informative) Interlaboratory chemical analysis of calcium-phosphate-based
powder .17
iv
Foreword
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