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GB/T 13835.7-2009 English PDF

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Q: Should I purchase the latest version GB/T 13835.7-2009?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13835.7-2009 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$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 13835.7-2009: Test method for rabbit hair -- Part 7: Whiteness
Status: Valid

GB/T 13835.7: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13835.7-2009	139	Add to Cart	3 days	Test method for rabbit hair -- Part 7: Whiteness	Valid
GB/T 13835.7-1992	199	Add to Cart	2 days	Test method for whiteness of 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 13835.7-2009 (GB/T13835.7-2009)
Description (Translated English): Test method for rabbit hair -- Part 7: Whiteness
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: W20
Classification of International Standard: 59.060.01
Word Count Estimation: 6,670
Date of Issue: 2009-04-23
Date of Implementation: 2009-09-01
Older Standard (superseded by this standard): GB/T 13835.7-1992
Quoted Standard: GB/T 6529; 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 the determination of whiteness with white fur meter. This section applies to the determination of rabbit whiteness.

GB/T 13835.7-2009: Test method for rabbit hair -- Part 7: Whiteness

---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.
Test method for rabbit hair Part 7. Whiteness ICS 59.060.01 W20 National Standards of People's Republic of China Replacing GB/T 13835.7-1992 Angora fiber test methods - Part 7. Whiteness 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 7. This Part replaces GB/T 13835.7-1992 "fur fiber whiteness test methods." This section compared with the GB/T 13835.7-1992 The main changes are as follows. --- Increase the whiteness of terms and definitions (edition 3.3); --- Modify the preset humidity, the humidity and atmospheric testing standards (Edition 1992 Chapter 5; Chapter 7 of this edition). This section proposed and managed by China Fiber Inspection Bureau. This section is drafted. Sichuan Provincial Fiber Inspection Bureau, Zhejiang Province Fiber Inspection Bureau. The main drafters of this section. Pingxiang Yun Weng Grace, had Rong, Liu, Liu Cai Rong. This part of the standard replaces the previous editions are. --- GB/T 13835.7-1992. Angora fiber test methods - Part 7. Whiteness

1 Scope

GB/T 13835 in this section specifies the method for the determination of whiteness with white fur meter. This section applies to the determination of rabbit whiteness.

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, we are encouraged to reach agreement under this section All parties that proposed to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 6529 Textiles Standard conditioning and testing atmosphere 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 Lab color space system three-dimensional Cartesian coordinate system specified in CIE lightness coordinates. 3.2 Lab color space system three-dimensional Cartesian coordinate system specified in CIE chromaticity index. 3.3 In the CIE color system stipulated in the white matter of the degree of surface white one-dimensional evaluation. Principle 4 With whiteness meter irradiation same stability and the same color temperature light source, and a standard whiteness plate as the base of rabbit hair fibers reflectance of Ratio measured by appropriate means indicates the whiteness of the rabbit, or calculate the corresponding parameters whiteness values.

5 equipment and instruments

5.1 meets the following indicators can be used any type of whiteness meter. a) measurement window; b) whiteness meter optical conditions can be used. vertical/diffusing (0/d), diffusion/vertical (d/0), 45 °/vertical (45/0) and vertical/45 ° (0/45) of any kind; c) Stability. The instrument should be in the boot 0.5h, zero drift is not greater than 0.3, showing the value of drift is not greater than 0.5; d) the repeatability of the instrument should be used under the same conditions of a sample, tested once every 0.5h, any two of the three measurement results The difference is not more than 0.3%; e) The instrument should be equipped with a sample cell, the sample cell light-transmissive element should be optical glass; f) Working standard whiteness plate should be in the test cycle. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 13835.7-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 13835.7-2009_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 13835.7-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 13835.7-2009_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 13835.7-2009?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13835.7-2009 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.