API 45:1998

1 SCOPE
2 ACRONYMS AND REFERENCES
3 GENERAL
3.1 Introduction
3.2 Goals
3.3 Applications
3.4 Environmental concerns
4 SAMPLE COLLECTION, PRESERVATION, AND LABELING
4.1 Introduction
4.2 Preliminary considerations
4.3 Sampling
4.4 Sample and system identification
4.5 Field/laboratory analyses
4.6 Quality assurance/quality control
4.7 Laboratory screening
5 METHODS FOR THE DETERMINATION OF MAJOR CONSTITUENTS
5.1 Introduction
5.2 Analytical method groupings
5.3 Analytical methods
6 REPORTING AND DOCUMENTATION
6.1 Introduction
6.2 Recommended report formats
6.3 Regulatory compliance report format
6.4 Water patterns
6.5 API water analysis laboratory report form
6.6 API water analysis field report form
6.7 Quality of water analysis results
6.8 Appraisal of the laboratory report
APPENDIX A RESISTIVITY GRAPH
APPENDIX B LIST OF ACRONYMS
APPENDIX C REFERENCES
Figures
1 API water analysis laboratory report form
2 API water analysis field report form
A-1 Resistivity graph for salinity and temperature of NaCl
     solution
Tables
1 Summary of special sampling or handling requirements
2 Summary of constituents and analytical methods
3 Volume relationships for alkalinity calculations

Specifies analysis methods for the determination of dissolved and dispersed components in oilfield waters (produced water, injected water, aqueous workover fluids and stimulation fluids).