GB/T 14020-2024Hydrogenated rosin (English PDF)
氢化松香
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Issued by
State Administration for Market Regulation; Standardization Administration of China
Level / Type
National · Recommended
Issue date
September 29, 2024
Implementation date
April 1, 2025
Scope
GB/T 14020-2024 is the English-translated version of 氢化松香.
GB/T 14020-2024 is the Chinese national standard for hydrogenated rosin, the transparent amorphous solid obtained by hydrogenating the resin acids of gum rosin over a palladium-on-carbon catalyst.
It sets the technical requirements for ordinary, highly and super highly hydrogenated rosin, with the grades and the limits on appearance, colour, softening point by the ring and ball method, acid value, ethanol-insoluble matter, unsaponifiable matter and resin acid content.
It describes the sampling and the test methods, including the determination of abietic and dehydroabietic acid by UV spectrophotometry and of abietic, dehydroabietic and tetrahydro resin acids by gas chromatography, and it gives the inspection rules and the packaging, marking, transport and storage requirements.
It applies to the production, trade and circulation of hydrogenated rosin. It replaces GB/T 14020-2006, was issued on 29 September 2024 and has applied since 1 April 2025.
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Document preview — GB/T 14020-2024
National Standard of the People's Republic of China
- ICS
- 65.050
- Classification
- B 72
- Replacing
- GB/T 14020-2006
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Technical requirements
- 5 Sampling
- 6 Test methods
- 6.1 Appearance measurement
- 6.2 Color measurement
- 6.3 Softening point determination (ring and ball method)
- 6.4 Acid value determination
- 6.5 Determination of ethanol insoluble matter
- 6.6 Determination of unsaponifiable matter
- 6.7 Determination of abietic acid and dehydroabietic acid (UV spectrophotometer method)
- 6.8 Determination of abietic acid, dehydroabietic acid and tetrahydroresin acid (gas chromatography)
- 7 Inspection Rules
- 7.1 Inspection categories
- 7.2 Batch Division
- 7.3 Sampling
- 7.4 Rating
- 8 Packaging, marking, transportation, storage
- 8.1 Packaging
- 8.2 Logo
- 8.3 Transport
- 8.4 Storage
- Appendix A (Informative) Calculation example for the determination of abietic acid and dehydroabietic acid by UV spectrophotometry
- A.1 UV absorption spectrum of ordinary hydrogenated rosin
- A.2 Calculation of abietic acid and dehydroabietic acid content
- Appendix B (Informative) Gas Chromatography and Data of Hydrogenated Rosin
- B.1 Chromatographic column
- B.2 Gas chromatogram and data of ordinary hydrogenated rosin
- B.3 Gas Chromatography and Data of Highly Hydrogenated Rosin
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting is required.
This document replaces GB/T 14020-2006 Hydrogenated Rosin. Compared with GB/T 14020-2006, except for structural adjustment and editorial changes, In addition to the modifications, the main technical changes are as follows.
Added the term and definition of hydrogenated rosin (see 3.1), and deleted the term and definition of ordinary hydrogenated rosin and highly hydrogenated rosin (See 3.1 and 3.2 of the 2006 edition);
Added the technical indicators of super highly hydrogenated rosin (see Table 1);
The Ghana colorimetry was added to the color measurement, and the glass color block colorimetry was deleted (see 6.2.1, Table 1 and 5.1.1 of the 2006 edition);
Added the gas chromatography determination method for abietic acid and dehydroabietic acid (see 6.8);
The technical indicators and determination methods of oxygen absorption have been deleted (see Table 1 and 5.7 of the 2006 edition).
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies in this document.
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 8145-2021 Gum rosin
GB/T 8146-2022 Rosin test method
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Hydrogenated rosin
Using gum rosin as raw material, under certain temperature and pressure, using palladium/carbon and other hydrogenation catalysts, the double bonds of rosin resin acid are partially or completely
An amorphous transparent solid obtained by saturating the entire surface of the gas with hydrogen.
Note: The main chemical components are dihydroresin acid and tetrahydroresin acid, with molecular formulas of C20H32O2 and C20H34O2.
4 Technical requirements
The technical indicators of hydrogenated rosin should meet the requirements of Table 1. […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.
Referenced standards
Similar standards
GB/T 8145|GB/T 8146|GB/T 6604|GB/T 25142|GB/T 14020-2006|GB/T 10287
Editions of GB/T 14020
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 14020-2024 | Hydrogenated rosin | second revision | Current |
| GB/T 14020-2006 | Hydrogenated rosin | first revision | In force alongside |
| GB/T 14020-1992 | Hydrogenated rosin | first issue | Superseded |
This page sells the current edition, GB/T 14020-2024. Earlier editions are listed for reference only.
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Related Standards
GB/T 6682-2008 — Water for analytical laboratory use - Specification and test methods
GB/T 8145-2021 — Gum rosin
GB/T 8146-2022 — Test methods for rosin
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