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GB/T 14457.3-2008 English PDF

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Q: Should I purchase the latest version GB/T 14457.3-2008?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14457.3-2008 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 14457.3-2008: Fragrance/Flavor substances -- Method for determination of melting point
Status: Valid

GB/T 14457.3: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 14457.3-2008	149	Add to Cart	2 days	Fragrance/Flavor substances -- Method for determination of melting point	Valid
GB/T 14457.3-1993	199	Add to Cart	2 days	Isolate and synthetic aroma chemicals. Method for determination of melting point	Obsolete

Similar standards

GB/T 14455.3 GB/T 14454.7 GB/T 14455.5 GB/T 14455.1 GB/T 14458 GB/T 14457.2

Basic data

Standard ID: GB/T 14457.3-2008 (GB/T14457.3-2008)
Description (Translated English): Fragrance/Flavor substances -- Method for determination of melting point
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y41
Classification of International Standard: 71.100.60
Word Count Estimation: 5,518
Date of Issue: 2008-07-15
Date of Implementation: 2008-12-01
Older Standard (superseded by this standard): GB/T 14457.3-1993
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 determination of melting point tube spice melting. This section applies to the determination crystallization or melting powdered spices.

GB/T 14457.3-2008: Fragrance/Flavor substances -- Method for determination of melting point

---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. Method for determination of melting point ICS 71.100.60 Y41 National Standards of People's Republic of China Replacing GB/T 14457.3-1993 Spices melting point determination Posted 2008-07-15 2008-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 14457 "spice general test method" consists of the following components. --- Part 2. Isolate and synthetic fragrances Boiling Range assay; --- Part 3. Determination of the melting point of spices. This section GB/T Part of 314,457. This part is GB/T 14457.3-1993 "Isolate and synthetic flavors, melting point determination," the amendment. This portion of the GB/T 14457.3- Compared to 1993, mainly to 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 14457.3-1993. Spices melting point determination

1 Scope

GB/T 14457 in this section specifies the method for measuring a melting point tube spice melting point. This section applies to the determination of crystalline or powdered spices melting point.

2 Terms and definitions

The following terms and definitions apply GB/T 14457 in this section. 2.1 When the temperature of the melting point of the sample tube begins to melt. 2.2 The melting point of the sample tube begins to melt completely melted at a temperature range. Principle 3 Heating tube in a way that the melting point of the sample heats up, melting temperature observed by visual observation.

4 Instrument

Usual laboratory equipment, especially the following instruments. 4.1 melting point tubes (capillaries) Neutral capillary made of hard glass, one end of the frit sealing, the tube length of about 100mm, an inner diameter of 0.9mm ~ 1.1mm, thickness 0.10mm ~ 0.15mm. 4.2 Thermometer 4.2.1 Measurement Thermometer With the appropriate range of precision thermometer, sub-scale is 0.1 ℃ or 0.2 ℃. 4.2.2 Auxiliary thermometer With the appropriate range, sub-scale of the thermometer 1 ℃. 4.3 heating device Use temperature-controlled heating device. a) a magnetic stirrer; b) high beaker type. capacity of about 600mL, serpentine tube in a fixed power of 300W heating wire. Controlled by regulating transformers System temperature. 4.4 transfer fluid temperature It should be selected higher than the boiling point of the sample being tested final melting temperature, and stable performance, clear, small viscosity of the liquid as a liquid transfer temperature. At above 150 ℃ melting point of the silicone oil can be used below 150 ℃ liquid paraffin or glycerin may be employed, mp.

5 Procedure

5.1 A small amount of research into the sample as a fine powder, together with the melting point of the closed end of the tube into the dryer fully dry (at least 16h). Remove the sample was placed into a tube with a melting point of about 1m dried glass upright on a glass plate or a solid desktop, containing molten sample Point drop tube in which repeated several times until the end of the sample tube tightly sink height of 2mm ~ 3mm, spare. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 14457.3-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 14457.3-2008_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 14457.3-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 14457.3-2008_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 14457.3-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14457.3-2008 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.