| 022-16-98: | Fourth IUPAC Workshop on Safety in Chemical Production |
| 022-17-98: | Assessment of DIDAC as an aid for the teaching of chemistry around the world |
| 022-18-98: | Special Publication on Natural and Anthropogenic Environmental Oestrogens |
| 024-1-98: | Spectroscopic data standard for multi-dimensional NMR data sets |
| 025-49-98: | International Curriculum Development |
| 130-32-98: | Electrochemistry at the interface between two immiscible electrolyte solutions |
| 130-33-98: | Electrochemistry for the environment |
| 130-34-98: | State of the art water treatment for industrial plating facilities |
| 150-25-98: | Quantities, Terminology and Symbols in Photothermal and Related Spectroscopies |
| 2001-018-1-300: | Space- and time-resolved fluorescence spectroscopy and photochemistry |
| 220-31-98: | Priority Claims Elements 110-112 |
| 240-12-98: | Carbon Isotope Ratio in CO2 Series: International Measurement Evaluation Programme (IMEP-8) |
| 240-13-98: | Trace Elements in Polyethylene Series: International Measurement Evaluation Programme (IMEP-13) |
| 240-14-98: | Trace Elements in Sediment Series: International Measurement Evaluation Programme (IMEP-14) |
| 310-24-98: | Fullerene Nomenclature |
| 310-25-98: | Stereochemistry: Concepts, Terms, Notation |
| 310-26-98: | Phane Nomenclature, Part II |
| 310-27-98: | Seniority of Detachable Prefixes Based on CIP Priorities |
| 310-28-98: | Nomenclature in the 21st Century |
| 320-21-98: | Reaction Pathways and Processes in Green Chemistry |
| 320-22-98: | Evaluation of Methods for Obtaining Relevant Physiochemical Properties of Environmentally Important Organic Compounds |
| 330-19-98: | Figures of Merit for the Technical Development and Application of Advanced Oxidation Technologies |
| 330-20-98: | Photochromism |
| 330-22-98: | Ultraviolet Disinfection |
| 422-1-98: | Nomenclature of chromatography of polymers and related substances |
| 422-2-98: | Characterization of polyelectrolytes in aqueous solution by GPC, light scattering, viscometry, ultracentrifuge or similar methods |
| 422-3-98: | Size exclusion chromatography dispersion correction |
| 422-4-98: | Precise determination of molecular weight distributions of polyolefins by high temperature size exclusion chromatography and hyphenated techniques |
| 422-5-98: | SEC/GPC of polystyrenes |
| 422-6-98: | Molecular characterization of polyamides 6, 11 and 12 |
| 510-37-98: | Essential Information for Characterizing a Flow Analyser |
| 510-38-98: | Recommendations for the use of the term "recovery" in analytical procedures |
| 510-39-98: | Selectivity and Specificity in Analytical Chemistry |
| 510-40-98: | Uncertainty in Analytical Chemistry |
| 540-21-98: | Critical Assessment of Optical Techniques in Surface Analysis I. Elemental Analysis |
| 540-24-98: | Critical assessment of femtosecond optical methods for chemical analysis |
| 540-25-98: | Critical Assessment of Spectrochemical Methods in High-Throughput Screening and Combinatorial Technologies |
| 540-26-98: | Critical assessment of spectrochemical methods of analysis using liquid organised media |
| 540-27-98: | Critical assessment of spectrochemical procedures for surface/interface analysis II Molecular analysis |
| 570-27-98: | Effect of humic substances on the environmental migration of radionuclides |
| 630-27-98: | Control of Remediated Soil |
| 640-40-98: | Mass Spectrometric Techniques for Multi-Residue Monitoring of Pesticides in Food and Animal Feedstuffs |
| 700-2-98: | Natural and Unnatural Substances Related to Human Health |
| 720-13-98: | IUPAC Guidelines for Terms Related to Chemical Speciation and Fractionation of Trace Elements: Definitions, Structural Aspects, and Methodological Approaches |
