|
US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 2294-2019: Determination of softening point in solid products of coal carbonization
Status: Valid GB/T 2294: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 2294-2019 | English | 279 |
Add to Cart
|
3 days [Need to translate]
|
Determination of softening point in solid products of coal carbonization
| Valid |
GB/T 2294-2019
|
| GB/T 2294-1997 | English | 319 |
Add to Cart
|
3 days [Need to translate]
|
Solid products of coal carbonization. Determination of softening point
| Obsolete |
GB/T 2294-1997
|
| GB/T 2294-1980 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Method for determination of coal pitch softening point
| Obsolete |
GB/T 2294-1980
|
PDF similar to GB/T 2294-2019
Standard similar to GB/T 2294-2019 GB/T 18255 GB/T 1816 GB/T 2293 GB/T 2285 Basic data | Standard ID | GB/T 2294-2019 (GB/T2294-2019) | | Description (Translated English) | Determination of softening point in solid products of coal carbonization | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G18 | | Classification of International Standard | 71.080 | | Word Count Estimation | 14,144 | | Date of Issue | 2019-08-30 | | Date of Implementation | 2020-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 2294-2019: Determination of softening point in solid products of coal carbonization---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.
Determination of softening point in solid products of coal carbonization
ICS 71.080
G18
National Standards of People's Republic of China
Replace GB/T 2294-1997
Method for determining softening point of coking solid products
Published on.2019-08-30
2020-03-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 2294-1997 "Method for determination of softening point of coking solid products", this standard is in accordance with GB/T 2294-1997
The main technical changes are as follows.
--- Modified the sample tool (see 3.3.1.4,.1997. 3.3.1.3);
--- Added the sample operation control table (see 3.3.3);
--- Increased cryostat (see 4.2.1.8);
--- Added the main technical parameters of the automatic ring and ball softening point tester (see 4.2.1.9);
--- Modified the reagents, and changed "Vaseline" and "glycerol" to "glycerol" (see 4.2.2, 5.2 of.1997 edition);
--- Increased the requirements for the preparation of copper rings for samples (see 4.3.1.4);
--- Increase the requirement for softening drooping distance measurement of the sample in the universal method (see 4.3.1.5);
--- Increase the requirements for ball weighing in the Global Method (see 4.3.1.6);
--- Change the 1 °C in the "Re-testing of the softening point of the two rings to more than 1 °C" to 0.8 °C (see 4.3.1.9,.1997 edition)
6.6);
--- Increased the calculation formula for the manual analysis of the global method (see 4.3.1.10);
--- Added the global method of automatic instrumentation (see 4.3.2);
--- Modified the test table for different softening point test (see 4.3.3, 6.7 of.1997 edition);
--- Global law reproducibility adjusted from 1.5 ° C to 1.2 ° C (see 4.4.1,.1997 version of 7.1);
--- Purity of benzoic acid changed to reference reagent (see 5.2.2.1, 9.2.1 of.1997 edition);
--- Modified the reagent, changed "xylene or washing oil" to "xylene" and modified the purity (see 5.2.2.2,.1997 version 9.2.2);
--- Modified the reagents and changed "Vaseline" to "glycerol" (see 5.2.2.3,.1997 version 9.2.3);
--- Increased the requirements for periodic calibration of the ball ball meter (see 5.4.10);
--- Revised the content of the test results (see Chapter 6, Chapter 12 of the.1997 edition).
This standard was proposed by the China Iron and Steel Association.
This standard is under the jurisdiction of the National Coal Chemical Standardization Technical Committee (SAC/TC469).
This standard was drafted. Inner Mongolia Baogang Steel Union Co., Ltd., Jiangsu Shagang Group Co., Ltd., China Pingmei Shenma Group Kaifeng
Carbon Co., Ltd., Shandong Chenyang New Carbon Materials Co., Ltd., Metallurgical Industry Information Standards Institute.
The main drafters of this standard. Jiang Xin, Li Xiaotong, Bian Haijun, Zhang Yishan, Fu Lijun, Wu Mingming, Zheng Jingwu, Chen Ying, Qian Rugang, Bai Xinge,
Lu Hongbing, Zhang Shengen, Zhou Hao, Yu Yiru, Yan Ping, Wang Qinggang.
The previous versions of the standards replaced by this standard are.
---GB/T 2294-1980, GB/T 2294-1997;
---GB/T 8728-1988.
Method for determining softening point of coking solid products
Caution - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions.
question. Users of this standard are responsible for taking appropriate safety and health measures and ensuring the conditions required by relevant national regulations. Test operation
The tester should wear respirators, safety goggles and protective gloves and complete the test in the forced fume hood.
1 Scope
This standard specifies the principle, instrument, test procedure and test for the determination of softening point of coking solid product coal tar pitch and solid coumarone resin.
Test results, allowable deviations, test reports and arbitration.
This standard is applicable to the determination of the softening point of coking solid products coal pitch and solid coumarone resin.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 2000 coking solid product sampling method
Method for preparing GB/T 2291 coal pitch laboratory sample
3 sample taking and preparation
3.1 Take of the sample
According to the provisions of GB/T 2000.
3.2 Preparation of samples
According to the provisions of GB/T 2291.
3.3 Melt sample
3.3.1 Instruments
3.3.1.1 Air bath. made of white iron, 180mm in diameter and 110mm in height, with 1~3 holes with a diameter of 52mm on it and
There are 2 holes with a diameter of 24mm, as shown in Figure 1. Temperature controller. room temperature ~ 300 ° C, the probe should be inserted into the air bath to the depth and the sample
The bottom of the spoon is flush.
3.3.1.2 Melt spoon. volume 50mL.
3.3.1.3 坩埚. 50mm.
3.3.1.4 Heater. a temperature-controlled closed electric furnace, electric heating plate or gas lamp;
Oil bath. controllable temperature, room temperature ~ 300 ° C;
Water bath. controllable temperature, room temperature ~ 100 °C.
3.3.1.5 Glass thermometer. 0 ° C ~ 250 ° C, the division value of 1 ° C.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 2294-2019_English be delivered?Answer: Upon your order, we will start to translate GB/T 2294-2019_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 2294-2019_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 2294-2019_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 2294-2019?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 2294-2019 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.
|