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GB/T 13835.8-2009 English PDF

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Q: Should I purchase the latest version GB/T 13835.8-2009?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13835.8-2009 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 13835.8-2009: Angora fiber test methods -- Part 8: ether extract content
Status: Valid

GB/T 13835.8: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13835.8-2009	149	Add to Cart	2 days	Angora fiber test methods -- Part 8: ether extract content	Valid
GB/T 13835.8-1992	199	Add to Cart	2 days	Test method for extractable matter by ether from Angora rabbit hair	Obsolete

Similar standards

FZ/T 70009 FZ/T 20018 GB/T 13835.3 GB/T 13835.4 GB/T 13835.2

Basic data

Standard ID: GB/T 13835.8-2009 (GB/T13835.8-2009)
Description (Translated English): Angora fiber test methods -- Part 8: ether extract content
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: W20
Classification of International Standard: 59.060.01
Word Count Estimation: 5,544
Date of Issue: 2009-04-23
Date of Implementation: 2009-09-01
Older Standard (superseded by this standard): GB/T 13835.8-1992
Quoted Standard: GB/T 8170; GB/T 13835.1
Regulation (derived from): National Standard Approval Announcement 2009 No.5 (Total No.145)
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 content of rabbit ether extract. This section applies to the determination of rabbit ether extract content.

GB/T 13835.8-2009: Angora fiber test methods -- Part 8: ether extract content

---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.
Angora fiber test methods - Part 8. ether extract content ICS 59.060.01 W20 National Standards of People's Republic of China Replacing GB/T 13835.8-1992 Test method for rabbit hair fiber Part 8. ether extract content Posted 2009-04-23 2009-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 13835 "rabbit fiber test method" consists of the following nine sections. --- Part 1. Sampling; --- Part 2. The average length and short hair ratio manual transmission method; --- Part 3. impurity rate, coarse hair and loose hair rate; --- Part 4. Regain oven method; --- Part 5. single fiber breaking strength and elongation at break; --- Part 6. diameter projection microscopy; --- Part 7. whiteness; --- Part 8. ether extract content; --- Part 9. crimp performance. This section GB/T 13835 Part 8. GB/T 13835.8-1992 "rabbit ether extract test methods" in this section instead. This section compared with the GB/T 13835.8-1992 The main changes are as follows. --- Added ether solvent purity requirements (edition 5.4); --- Improve the sampling and sample preparation (Version 1992 Chapter 6; Chapter 6 of this edition). This section proposed and managed by China Fiber Inspection Bureau. This section is drafted. Fiber Inspection Bureau in Sichuan, Shaanxi Provincial Fiber Inspection Bureau. The main drafters of this section. Zeng Rong, Pingxiang Yun, Lan Fan, Huang Chao, Liu Jianping. This part of the standard replaces the previous editions are. --- GB/T 13835.8-1992. Test method for rabbit hair fiber Part 8. ether extract content

1 Scope

GB/T 13835 in this section specifies the method for the determination rabbit ether extract content. This section applies to the determination of rabbit ether extract content.

2 Normative references

The following documents contain provisions which, through reference GB/T 13835 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, encouraged to reach under this section 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 8170 repair value expressed about the rules and limit values \u200b\u200band judgment GB/T 13835.1 rabbit hair fiber test methods - Part 1. Sampling

3 Terms and Definitions

The following terms and definitions apply GB/T 13835 in this section. 3.1 Ether as the solvent, the material was extracted from rabbit hair fibers. Principle 4 The sample is placed in Soxhlet fat dip smoke is repeatedly extracted with ethyl ether, the extract was dried weighed, calculated content of ether extract. 5 apparatus, instruments and reagents 5.1 Soxhlet fat dip pumping device (reception with 250mL bottle). 5.2 Balance, dividing the value 0.0001g. 5.3 oven, constant temperature water bath, dryer, aluminum case, qualitative filter paper. 5.4 ether (chemically pure).

6 Sampling and sample preparation

According to GB/T 13835.1 provisions laboratory sample is thoroughly mixed tile on the table, from the laboratory sample points, Uniform extraction of four test specimens, each weighing about 3g, two for parallel test, two spare.

7 Test procedure

7.1 installed on a heated water bath Soxhlet fat dip pumping device, connect the cooling water, which leads to cooling water, turn on the power, heated water bath. 7.2 The sample was wrapped qualitative filter paper, were placed in the dip pumping device, do not exceed the height of the siphon mouth, pumping into the upper portion of ether from leaching, And over the siphon submerged sample, resulting in reflux condenser followed. 7.3 to maintain the temperature of the water bath, so that the receiving flask ether slightly boiling. Reflux 2h, less than 20 times the number of reflux. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 13835.8-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 13835.8-2009_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 13835.8-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 13835.8-2009_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 13835.8-2009?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13835.8-2009 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.