GB/T 33030-2016Indentification of starches adulterant in oleoresin (English PDF)
松脂中淀粉类掺杂物鉴别方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 13, 2016
Implementation date
May 1, 2017
Scope
GB/T 33030-2016 is the English-translated version of 松脂中淀粉类掺杂物鉴别方法.
GB/T 33030-2016 is the Chinese standard "Indentification of starches adulterant in oleoresin". Its scope clause reads: This standard specifies the identification method of starch dopants in pine resin.
This standard applies to the rapid assessment of rosin and doping rosin. Its clauses include normative reference documents; terms and definitions; principle; test method.
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Document preview — GB/T 33030-2016
National Standard of the People's Republic of China
- ICS
- 65.050
- Classification
- B 72
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 normative reference document
- 3 Terms and definitions
- 5 Test Method
- 6 Discrimination and Reporting
1 Scope
This standard specifies the identification method of starch dopants in pine resin.
This standard applies to the rapid assessment of rosin and doping rosin.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
Preparation of standard titration solution for GB/T 601 chemical reagents
Preparation of preparations and preparations for use in the test methods for chemical reagents GB/T 603
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 12901
3 terms and definitions
The following terms and definitions apply to this document.
3.1 Starch dopant
Blended into the rosin and not part of the starchy starch ingredients such as tapioca flour, tapioca starch and other plant starch.
4 principle
Starch components combine with iodine to form blue, purple or brown-red complexes, and qualitative discrimination by visual observation.
5 test method
5.1 Reagents and Solutions
5.1.1
In this chapter, unless otherwise stated, the titration solutions, preparations and articles used are prepared in accordance with the provisions of GB/T 601 and GB/T 603.
Reagents are analytical reagents, test water should be consistent with GB/T 6682 in the three water regulations.
5.1.2 turpentine
in line with GB/T 12901 turpentine (excellent grade) requirements.
5.1.3
saturated aqueous sodium chloride solution.
Evenly, into the brown bottle and placed in the dark to save the spare.
5.2 Instruments and equipment
5.2.1 water bath
0 °C ~ 100 °C, the accuracy of 1 °C.
5.2.2 Balance
accuracy of 0.1g.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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