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GB/T 5527-2024 English PDF

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Q: Should I purchase the latest version GB/T 5527-2024?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 5527-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 5527-2024: Animal and vegetable fats and oils - Determination of refractive index
Status: Valid

GB/T 5527: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5527-2024	189	Add to Cart	3 days	Animal and vegetable fats and oils - Determination of refractive index	Valid
GB/T 5527-2010	160	Add to Cart	Auto, < 3 mins	Animal and vegetable fats and oils -- Determination of refractive index	Valid
GB/T 5527-1985	199	Add to Cart	2 days	Inspection of vegetable oils--Methods for determination of refractive index	Obsolete

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GB/T 5526 GB/T 5527 GB/T 5525

Basic data

Standard ID: GB/T 5527-2024 (GB/T5527-2024)
Description (Translated English): Animal and vegetable fats and oils - Determination of refractive index
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X14
Classification of International Standard: 67.200.10
Word Count Estimation: 9,982
Date of Issue: 2024-10-26
Date of Implementation: 2025-05-01
Older Standard (superseded by this standard): GB/T 5527-2010
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 5527-2024: Animal and vegetable fats and oils - Determination of refractive index

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT5527-2024
Animal and vegetable fats and oils - Determination of refractive index Determination of refractive index of animal and vegetable oils and fats (ISO 6320.2017, MOD) ICS 67.200.10 CCS X 14 National Standard of the People's Republic of China Replaces GB/T 5527-2010 Released on October 26, 2024 Implementation on May 1, 2025 State Administration for Market Regulation The National Standardization Administration issued

Preface

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 5527-2010 “Determination of refractive index of animal and vegetable fats and oils”. In addition to structural adjustments and editorial changes, the main technical changes are as follows. Changed the scope (see Chapter 1, Chapter 1 of the.2010 edition);- The reagents have been changed (see 5.2 of the.2010 edition); - Added the automatic refractometer method (second method) (see Chapter 7). - This document is modified to adopt ISO 6320.2017 “Animal and vegetable fats and oils – Determination of the refractive index”. Compared with ISO 6320.2017, this document has the following structural adjustments. Chapter 6 corresponds to Chapters 6 to 12 of ISO 6320.2017, of which 6.1 corresponds to Chapter 6 of ISO 6320.2017, and 6.2 corresponds to Chapter 7 of ISO 6320.2017, 6.3 corresponds to Chapter 8 of ISO 6320.2017, 6.4 corresponds to Chapter 9 of ISO 6320.2017, 6.5 corresponds to Chapter 10 of ISO 6320.2017, 6.6 corresponds to Chapter 11 of ISO 6320.2017, and 6.7 corresponds to Chapter 12 of ISO 6320.2017. The technical differences between this document and ISO 6320.2017 and the reasons for them are as follows. ─ The normative references GB/T 6379.1 and GB/T 6379.2 replaced ISO 5725﹘1 and ISO 5725﹘2 respectively (see Appendix A) ISO 661 (see 6.3 and 7.3) has been replaced by the normative reference GB/T 15687 to adapt to my country's technical conditions; The reagents have been changed, toluene has been deleted, and the use of carcinogenic reagents has been reduced (see 5.2); The automatic refractometer method (second method) (see Chapter 7) has been added to adapt to my country's technical conditions and increase operability. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was submitted by the State Administration of Grain and Material Reserves. This document is under the jurisdiction of the National Technical Committee on Standardization of Cereals and Oils (SAC/TC 270). This document was drafted by. China National Grain and Oils Corporation Chengdu Storage Research Institute Co., Ltd., China National Grain and Oils Corporation Quality Inspection Center Co., Ltd., Beijing Food Inspection and Research Institute Research Institute (Beijing Food Safety Monitoring and Risk Assessment Center), COFCO Huanghai Grain and Oil Industry (Shandong) Co., Ltd. The main drafters of this document are. Liu Xiaoli, Jiang Tao, Lan Shengbin, Shan Xiaoxue, Li Hui, Yang Juan, Wang Jin, Zhang Yuchong, Chen Chao, Tang Kun, Li Li, Liao Zilong, Xiong Shengwei, and Shen Feng. The previous versions of this document and the documents it replaces are as follows. First published as GB/T 5527-1985 in 1985 and first revised in.2010; This is the second revision. Determination of refractive index of animal and vegetable oils and fats

1 Scope

This document describes the Abbe refractometer and autorefractometer methods for the determination of the refractive index of animal and vegetable fats and oils. This document is applicable to animal and vegetable oils and fats, and is not applicable to the determination of the refractive index of milk fat and milk fat products.

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 latest version (including all amendments) applies to this document. In this document. GB/T 6379.1 Accuracy (Trueness and Precision) of Measurement Methods and Results Part 1.General Principles and Definitions (GB/T 6379.1-2004, ISO 5725﹘1.1994, IDT) GB/T 6379.2 Accuracy (trueness and precision) of measurement methods and results Part 2.Determination of the repeatability of standard measurement methods Basic methods for the determination of the properties and reproducibility of samples (GB/T 6379.2-2004, ISO 5725﹘2.1994, IDT) GB/T 15687 Preparation of animal and vegetable fats and oils (GB/T 15687-2008, ISO 661.2003, IDT)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 refractive index (of a medium) The ratio of the speed of light of a certain wavelength in a vacuum to its speed in the medium. Note 1.In practical applications, the speed of light in air is used instead of the speed of light in vacuum. Unless otherwise specified, the wavelength selected is the wavelength of the sodium D line (589.6 nm). Average wavelength. Note 2 to entry. The refractive index of a given substance varies with the wavelength of the incident light and the temperature. The symbol used is, where t is the temperature in degrees Celsius.

4 Principles

At the specified temperature, the refractive index of the liquid sample is measured by a suitable refractometer.

5 Reagents

Only analytical grade reagents should be used, and distilled water, deionized water or water of equivalent purity should be used in the laboratory. 5.1 Ethyl laurate. Purity suitable for determination of refractive index and refractive index known. 5.2 Hexane or other suitable solvents such as petroleum ether, acetone, etc. are used to clean the refractometer prism. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 5527-2024_English be delivered?

Answer: Upon your order, we will start to translate GB/T 5527-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 5527-2024_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 5527-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 5527-2024?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 5527-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.