GB/T 5535.1-2008Animal and vegetable fats and oils -- Determination of unsaponifiable matter -- Part 1: Method using diethyl ether extraction (English PDF)
动植物油脂 不皂化物测定
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the PRC
Level / Type
National · Recommended
Issue date
August 22, 2008
Implementation date
December 1, 2008
Scope
GB/T 5535.1-2008 is the English-translated version of 动植物油脂 不皂化物测定.
GB/T 5535.1-2008 is the Chinese standard "Animal and vegetable fats and oils -- Determination of unsaponifiable matter -- Part 1: Method using diethyl ether extraction".
Its scope clause reads: This Part of GB/T 5535 specifies a method using diethyl ether extraction for the determination of the unsaponifiable matter content of animal and vegetable fats and oils.
This Part is applicable to the determination of the unsaponifiable matter content of general animal and vegetable fats and oils. This Part is not applicable to waxes and, moreover, gives approximate results with certain fats of high unsaponifiable matter content, for example with fats derived from marine animals.
A method given in GB/T 5535.2 may be used when climatic conditions, or regulations, do not permit the use of diethyl ether. Its clauses include terms and definitions.
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Document preview — GB/T 5535.1-2008
National Standard of the People's Republic of China
- ICS
- 67.200.10
- Classification
- X 14
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the PRC
Contents
- Foreword3
- 1 Scope4
- 2 Normative references4
- 3 Terms and definitions4
- 4 Principle5
- 5 Reagents5
- 6 Apparatus5
- 7 Sampling6
- 8 Preparation of test sample6
- 9 Procedure6
- 10 Calculation of results8
- 11 Precision9
- 12 Test report9
- Annex A (Informative) Results of interlaboratory tests10
- Bibliography12
1 Scope
This Part of GB/T 5535 specifies a method using diethyl ether extraction for the determination of the unsaponifiable matter content of animal and vegetable fats and oils.
This Part is applicable to the determination of the unsaponifiable matter content of general animal and vegetable fats and oils. This Part is not applicable to waxes and, moreover, gives approximate results with certain fats of high unsaponifiable matter content, for example with fats derived from marine animals.
A method given in GB/T 5535.2 may be used when climatic conditions, or regulations, do not permit the use of diethyl ether.
2 Normative references
The following documents contain provisions which, through reference in this
Part of GB/T 5535, constitute provisions of this Part. For the dated references, their subsequent amendments (excluding corrections) or revisions do not apply to this Part. However, the parties who enter into agreement based on this Part are encouraged to investigate whether the latest editions of these documents are applicable. For undated reference documents, the latest editions apply to this Part.
GB/T 15687 Oils and fats - Preparation of test sample (GB/T 15687-1995, eqv ISO 661:1989)
3 Terms and definitions
For the purposes of this Part of GB/T 5535, the following term and definition applies.
3.1
Unsaponifiable matter
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 15687-2008 — Animal and vegetable fats and oils -- Preparation of test sample
GB/T 5535.2-2008 — Animal and vegetable fats and oils -- Determination of unsaponifiable matter -- Part 2: Method using hexane extraction
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GB/T 5535.1-2008
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