|
US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 13255.4-2009: Test methods of caprolactam for industrial use -- Part 4: Determination of volatile bases content -- Titrimetric method after distillation
Status: Valid GB/T 13255.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 13255.4-2009 | English | 189 |
Add to Cart
|
3 days [Need to translate]
|
Test methods of caprolactam for industrial use -- Part 4: Determination of volatile bases content -- Titrimetric method after distillation
| Valid |
GB/T 13255.4-2009
|
| GB/T 13255.4-1991 | English | 199 |
Add to Cart
|
2 days [Need to translate]
|
Caprolactam for industrial use--Determination of volatile bases content--Tithimetric method after distillation
| Obsolete |
GB/T 13255.4-1991
|
PDF similar to GB/T 13255.4-2009
Basic data | Standard ID | GB/T 13255.4-2009 (GB/T13255.4-2009) | | Description (Translated English) | Test methods of caprolactam for industrial use -- Part 4: Determination of volatile bases content -- Titrimetric method after distillation | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G15 | | Classification of International Standard | 71.080 | | Word Count Estimation | 8,893 | | Date of Issue | 2009-05-13 | | Date of Implementation | 2010-01-01 | | Older Standard (superseded by this standard) | GB/T 13255.4-1991 | | Regulation (derived from) | PRC National Standard Approval Announcement 2009 No.6 (Total No.146) | | Issuing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 determined by titration after distillation of volatile alkali content Caprolactam for industrial use. | GB/T 13255.4-2009: Test methods of caprolactam for industrial use -- Part 4: Determination of volatile bases content -- Titrimetric method after distillation
---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 caprolactam for industrial use Part 4. Determination of volatile bases content Titrimetric method after distillation
ICS 71.080
G15
National Standards of People's Republic of China
Replacing GB/T 13255.4-1991
Test methods of caprolactam for industrial use
Part 4. Determination of volatile alkali content
Titration after distillation
(ISO 8661. 1988, Caprolactamforindustrialuse-Determinationof
volatilebasescontent-Titrimetricmethodafterdistilation, MOD)
Issued on. 2010-01-01 2009-05-13 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 13255 "Industrial caprolactam test method" is divided into eight sections.
--- Part 1. Determination of a 50% aqueous solution of chromaticity spectrophotometry;
--- Part 2. Determination of crystallizing point;
--- Part 3. Determination of permanganate absorption spectrophotometry value;
--- Part 4. After distillation of volatile alkali content of titration;
--- Part 5. 290nm wavelength measured absorbance;
--- Part 6. Determination of acidity or alkalinity;
--- Part 7. Determination of iron content;
--- Part 8. Determination of cyclohexanone oxime content.
This section GB/T Part of 413,255.
The partial modification of international standards ISO 8661. 1988 "Caprolactam for industrial use - Determination of volatile bases content - distillation drops
Titration. "
This section according to ISO 8661. 1988 redrafted. This section lists the reg number in Appendix A and ISO 8661. 1988 reg
Control list numbered.
Taking into account China's national conditions, this part adopting ISO 8661. 1988 time made some editorial changes, this portion of the ISO 8661.
The main technical differences in 1988 is as follows.
--- Analysis of water level defined by the "distilled water or equivalent purity" was changed to "GB/T 6682-2008 stipulated three water"
(ISO 8661. 1988 version of Chapter 3; Chapter 4 of this section);
--- Necked flask Nitrogen (Kelvin) instead of a ground stopper flask (ISO 8661. 1988 version of Chapter 4; Chapter 5 of this section);
--- Analytical instruments increased the injector separating funnel (ISO 8661. 1988 version of Chapter 4; Chapter 5 of this section).
This Part replaces GB/T 13255.4-1991 "After distillation industry caprolactam volatile alkali content of the titration."
This section compared with the GB/T 13255.4-1991 The main changes are as follows.
--- Will analyze the water level is defined by "less than 1.0μS/distilled water or equivalent purity cm of water" to "conform
GB/T 6682-1992 stipulated three water "(Chapter 4 of this edition of the 1991 version of Chapter 4);
--- Added "Report" (see Chapter 8).
Appendix A of this section is an informative annex.
This part is proposed by the China Petroleum and Chemical Industry Association.
This part of the National Standardization Technical Committee on Organic Chemistry Club (SAC/TC63/SC2) centralized.
This section is drafted. Shijiazhuang Chemical Fiber Co., Ltd.
The main drafters of this section. Qiu Lu, Gao Lixin, Chen Miao.
This part of the standard replaces the previous editions as. GB/T 13255.4-1991.
Test methods of caprolactam for industrial use
Part 4. Determination of volatile alkali content
Titration after distillation
1 Scope
GB/T 13255 provisions of this section was determined by titration after distillation of volatile alkali content of caprolactam for industrial use.
2 Normative references
The following documents contain provisions which, through reference GB/T 13255 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.
Preparation of GB/T 601-2002 Chemical Reagent Titration analysis standard solution
GB/T 603-2002 Chemical Reagent Test Methods for preparing reagents and products used (ISO 6353-1. 1982, NEQ)
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
GB/T 8170 repair numerical representation about rules and limit values \u200b\u200band judgment
3 PRINCIPLE OF THE METHOD
In an alkaline medium, the distillation of the volatile base, absorb with an excess of standard solution of hydrochloric acid, methyl red - methylene blue ethanol indicative
Agents, with sodium hydroxide standard titration solution back titration.
4 Reagents
Unless otherwise stated, use only in the analysis confirmed analytically pure reagents and third grade water GB/T 6682-2008 requirements.
Analysis in the standard titration solution, preparations and products, did not indicate when the other requirements, according to GB/T 601-2002,
GB/T 603-2002 Preparation of the provisions.
4.1 Sodium hydroxide solution. 160g/L.
4.2 sodium hydroxide standard titration solution. Ba (NaOH) = 0.01mol/L.
4.3 hydrochloric acid standard titration solution. Ba (HCl) = 0.01mol/L.
4.4 methyl red - methylene blue mixed indicator.
5 Instruments
5.1 Distillation Apparatus.
Distillation of the components of the instrument with rubber and rubber tubing connections, the instrument shown in FIG. 1, includes the following components.
5.1.1 Nitrogen-necked flask (Kelvin). 500mL.
5.1.2 separatory funnel. 100mL.
5.1.3 Straight condenser. outer tube length 400mm.
5.1.4 Nitrogen ball. diameter (70 ± 5) mm.
5.1.5 receiver. 250mL volumetric flasks.
5.2 EAF. with regulating transformer.
5.3 zeolite.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 13255.4-2009_English be delivered?Answer: Upon your order, we will start to translate GB/T 13255.4-2009_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 13255.4-2009_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 13255.4-2009_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+ 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 13255.4-2009?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13255.4-2009 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.
|