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GB/T 14454.11-2008 English PDF

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Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14454.11-2008 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$149.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 14454.11-2008: Fragrance/Flavor substances -- Determination of content of phenols
Status: Valid

GB/T 14454.11: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 14454.11-2008	149	Add to Cart	2 days	Fragrance/Flavor substances -- Determination of content of phenols	Valid
GB/T 14454.11-1993	199	Add to Cart	2 days	Aromatics. Determination of phenol content	Obsolete

Similar standards

GB/T 14454.14 GB/T 14454.2 GB/T 14454.13 GB/T 14454.5 GB/T 14454.6 GB/T 14454.4

Basic data

Standard ID: GB/T 14454.11-2008 (GB/T14454.11-2008)
Description (Translated English): Fragrance/Flavor substances -- Determination of content of phenols
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y41
Classification of International Standard: 71.100.60
Word Count Estimation: 5,570
Date of Issue: 2008-07-15
Date of Implementation: 2008-11-01
Older Standard (superseded by this standard): GB/T 14454.11-1993
Quoted Standard: GB/T 14454.1-2008
Adopted Standard: ISO 1272-2000, MOD
Regulation (derived from): National Standard Approval Announcement 2008 No.12 (Total No.125)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the method for determining the amount of phenol with spices volumetric method. This section applies to the determination of the main components of the phenolic phenol content of spices.

GB/T 14454.11-2008: Fragrance/Flavor substances -- Determination of content of phenols

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Fragrance/Flavor substances. Determination of content of phenols ICS 71.100.60 Y41 National Standards of People's Republic of China Replacing GB/T 14454.11-1993 Determination of phenol content of spices (ISO 1272.2000, Essentialoils-Determinationofcontentofphenols, MOD) Posted 2008-07-15 2008-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 14454 "spice general test method" consists of the following components. --- Part 1. perfume sample preparation; --- Part 2. spice aroma evaluation method; --- Part 4. Determination of the refractive index of spices; --- Part 5. Determination of optical rotation of spices; --- Part 6. assessment perfume evaporation residue content; --- Part 7. Determination of spices freezing point; --- Part 11. Determination of phenol content of spices; --- Part 12. Determination of trace chlorine spices; --- Part 13. Determination of carbonyl value and carbonyl compounds content; --- Part 14. Preparation of spices standard solution, the test solution and the indicator solution; --- Part 15. Determination of sassafras safrole and safrole exclusive content packed column gas chromatography. This section GB/T Part of 1,114,454. The partial modification of the use of ISO 1272.2000 "oil phenol content determination." This part of ISO 1272.2000 is the main difference Remove the ISO 1272.2000, sampling methods and repeatability. This part of the amendment, the main changes GB/T 14454.11-1993 "spice phenol content determination" is deleted sampling method, Increase the content of the test report. This part is proposed by the China National Light Industry Council. This part of the National Fragrance Flavor and Cosmetic Standardization Technical Committee. This section is responsible for drafting the Shanghai Institute of spices. The main drafters of this section. Xu Yi, Cao Yi, Jinqi Zhang. This part of the standard replaces the previous editions are. --- GB/T 14454.11-1993. Determination of phenol content of spices

1 Scope

GB/T 14454 This part specifies the method for determining the amount of spices phenol by volumetric method. This section applies to phenols was determined to be the main component of the phenol content of spices.

2 Normative references

The following documents contain provisions which, through reference GB/T 14454 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section. However, under this part are encouraged to reach Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 14454.1-2008 perfume sample preparation (ISO 356.1996, MOD) Principle 3 The phenolic compounds contained in a known volume of perfume into a water-soluble basic salts of phenol, and then measure the volume of the perfume is not dissolved.

4 Reagents

Reagents were analytical reagent grade water as distilled water or equivalent purity water. 4.1 tartaric acid, powder. 4.2 potassium-free silica and alumina, 5% (by mass) aqueous solution. 4.3 xylene, non-soluble potassium hydroxide solution (4.2) impurities. Preparation. add the right amount of potassium hydroxide solution (4.2) in a separatory funnel, shaken, after stratification take the upper xylene spare.

5 Instruments

Usual laboratory equipment, especially the following instruments. Pipette 5.1, capacity 2mL, 10mL. 5.2 Erlenmeyer flask with a capacity of 100mL. 5.3 aldehyde bottle with a capacity of 125mL or 150mL, neck length 150mm, with 10mL and 0.1mL scale sub-scale. Scale of zero Line should be slightly higher than the bottom of the cylindrical neck, the neck and the vertical angle of the conical wall composed of approximately 30 °. 5.4 boiling water bath. 5.5 glass rod. 5.6 funnel with a capacity of 250mL.

6 Sample preparation

According to GB/T 14454.1 requirements. To avoid white emulsion during the measurement, it can be used as follows tartaric acid pretreatment. --- More samples of 10mL, followed by addition of tartaric acid (4.1), added in an amount of 0.02g/mL. --- Shaken vigorously, but not filtered according to GB/T 14454.1-2008 provisions in 5.1.3 with magnesium sulfate.

7 Procedure

By draw 10mL sample preparation (see Chapter 6) containing about 75mL of potassium hydroxide solution (4.2) aldehyde bottle with a pipette (5.1) ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 14454.11-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 14454.11-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 14454.11-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 14454.11-2008_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 14454.11-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14454.11-2008 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.