|
US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 11213.7-2008: Test methods of sodium hydroxide for chemical fiber use -- Part 7: Determination of copper content-spectrometric method
Status: Valid GB/T 11213.7: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11213.7-2008 | English | 139 |
Add to Cart
|
3 days [Need to translate]
|
Test methods of sodium hydroxide for chemical fiber use -- Part 7: Determination of copper content-spectrometric method
| Valid |
GB/T 11213.7-2008
|
| GB/T 11213.7-1989 | English | 199 |
Add to Cart
|
3 days [Need to translate]
|
Sodium hydroxide for chemical fiber use--Determination of copper mass fraction--Spectrometric method
| Obsolete |
GB/T 11213.7-1989
|
PDF similar to GB/T 11213.7-2008
Basic data | Standard ID | GB/T 11213.7-2008 (GB/T11213.7-2008) | | Description (Translated English) | Test methods of sodium hydroxide for chemical fiber use -- Part 7: Determination of copper content-spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G11 | | Classification of International Standard | 71.060.40 | | Word Count Estimation | 6,625 | | Date of Issue | 2008-06-18 | | Date of Implementation | 2009-02-01 | | Older Standard (superseded by this standard) | GB/T 11213.7-1989 | | Quoted Standard | GB/T 603; GB/T 6682 | | Adopted Standard | BS 6075-12-1981, MOD | | Regulation (derived from) | National Standard Approval Announcement 2008 No.10 (Total No.123) | | 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 of determination of brazing copper content with sodium hydroxide. This section applies to sodium hydroxide copper content of 0. 00001 % 0. 0001% of the product. | GB/T 11213.7-2008: Test methods of sodium hydroxide for chemical fiber use -- Part 7: Determination of copper content-spectrometric method
---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 methods of sodium hydroxide for chemical fiber use Part 7. Determination of copper content-spectrometric method
ICS 71.060.40
G11
National Standards of People's Republic of China
Replacing GB/T 11213.7-1989
Test methods for chemical fiber with sodium hydroxide
Part 7. Determination of copper content spectrophotometry
Posted 2008-06-18
2009-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 11213 "fiber with sodium hydroxide test method" is divided into the following sections.
--- Part 1. Determination of sodium content;
--- Part 2. Determination of sodium chloride content of spectrophotometry;
--- Part 3. Determination of calcium EDTA complexometric titration;
--- Part 4. Determination of silicon content by reduction of silicon molybdate salt spectrophotometric method;
--- Part 5. Determination of sulfate content;
--- Part 7. Determination of copper content spectrophotometry.
This section GB/T 11213 Part 7, the partially modified by the British Standards BS6075-12-1981 "hydroxide for industrial use
Determination of sampling and test methods - Part 12 copper content "(in English).
This portion BS6075-12-1981 main technical differences are.
--- Increasing the copper content in a sample is greater than 100μg processing method, expanding the scope of use;
--- The measurement step in the filtering operation was revised to "carefully extract was collected in a 50mL volumetric flask, to avoid solid particles with
Into the flask ";
--- Based on units of measurement to modify the results of the calculation formula;
--- Increasing the allowable difference provisions;
--- Added "Test Report" chapter.
This Part replaces GB/T 11213.7-1989 "Fiber Determination of copper content in sodium spectrophotometric method."
This section compared with the GB/T 11213.7-1989 The main changes are as follows.
--- Modify the standard name;
--- Increasing the standard "foreword";
--- Modify the sample size (1989 Edition Chapter 5; edition 6.2);
--- Increased when the copper content in a sample is greater than 100μg treatment (edition 6.2);
--- The measurement step in the filtering operation was revised to "carefully extract was collected in a 50mL volumetric flask, to avoid solid particles with
Into the flask "(1989 version 6.2.1; this edition 6.2);
--- Added "Test Report" section (see Chapter 9).
This part is proposed by the China Petroleum and Chemical Industry Association.
This part of the National Standardization Technical Committee chlor-alkali chemical branch (SAC/TC63/SC6) centralized.
This section is drafted. Jinxi Chemical Industry Research Institute, Tianjin Dagu Chemical Co., Ltd., Haohua Yuhang Chemical Co., Ltd., Shanghai
Chlor-Alkali Chemical Co., Ltd., Jinhua Group Chlor-Alkali Chemical Co., Ltd.
The main drafters of this section. Hu Liming, Ji-Tao, Liu Zhiqiang, Caojian Fang, Chenpei Yun, Gong Yao Fu, Tianyou Li.
This part of the standard replaces the previous editions are.
--- GB/T 11213.7-1989.
Please note that some of the content of this section may involve patents. This part of the release mechanism should not bear the responsibility to identify these patents.
Test methods for chemical fiber with sodium hydroxide
Part 7. Determination of copper content spectrophotometry
1 Scope
GB/T 11213 provisions of this part of the synthetic method for the determination of copper content neutralized with sodium hydroxide.
This section applies to the copper content of sodium hydroxide 0.00001% 0.0001% of the product.
2 Normative references
The following documents contain provisions which, through GB/T 11213 reference in this text, constitute provisions of this part. 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 603 chemical reagent in test methods - Preparations with (GB/T 603-2002, ISO 6353-1. 1982
NEQ)
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
Principle 3
Copper in the sample after being ascorbic acid and 2,2'-quinoline action, forming a purple complex with iso-amyl alcohol extracted complexes,
And then absorbance was measured in a spectrophotometer at a wavelength of 545nm.
4 Reagents and materials
The method of the reagents and water, did not indicate when the other requirements, refer to the three water analytical reagent and GB/T 6682 or as specified
Corresponding purity water.
Test preparation and products required in the absence of other provisions, prepared according to GB/T 603's.
4.1 sodium hydroxide.
4.2 over anhydrous sodium sulfate.
4.3 hydrochloric acid.
4.4 isoamyl alcohol.
4.5 bromine.
4.6 +) - tartaric acid solution. 500g/L.
4.7 Sodium hydroxide solution.200g/L.
4.8 L- ascorbic acid solution. 100g/L.
4.9 2,2'-quinoline complex solution. 0.5g/L isoamyl alcohol solution.
Weigh 0.25g2,2'- linked quinoline, dissolved in iso-amyl alcohol, diluted to 500mL with iso-amyl alcohol.
4.10 Copper Standard solution. 0.1mg/mL.
Weigh 0.393g of copper sulfate pentahydrate (CuSO4 · 5H2O), soluble in water, 25mL sulfuric acid (3mol/L), diluted with water
1000mL.
4.11 Copper Standard solution. 0.01mg/mL.
Absorb 10.0mL copper standard solution (4.10) diluted with water to 100mL. The solution was formulated before use.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 11213.7-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 11213.7-2008_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 11213.7-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 11213.7-2008_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+ countriesQuestion 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 [email protected]. 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 11213.7-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 11213.7-2008 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.
|