|
US$119.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3780.25-2018: Carbon black -- Part 25: Determination of carbon content
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3780.25-2018 | English | 119 |
Add to Cart
|
3 days [Need to translate]
|
Carbon black -- Part 25: Determination of carbon content
| Valid |
GB/T 3780.25-2018
|
PDF similar to GB/T 3780.25-2018
Basic data | Standard ID | GB/T 3780.25-2018 (GB/T3780.25-2018) | | Description (Translated English) | Carbon black -- Part 25: Determination of carbon content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G49 | | Classification of International Standard | 83.040.20 | | Word Count Estimation | 6,637 | | Date of Issue | 2018-09-17 | | Date of Implementation | 2019-04-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 3780.25-2018: Carbon black -- Part 25: Determination of carbon 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.
Carbon black - Part 25. Determination of carbon content
ICS 83.040.20
G49
National Standards of People's Republic of China
Carbon black - Part 25. Determination of carbon content
Published on.2018-09-17
Implementation of.2019-04-01
State market supervision and administration
China National Standardization Administration issued
Foreword
GB/T 3780 "carbon black" is divided into the following parts.
--- Part 1. Test method for iodine absorption;
--- Part 2. Determination of oil absorption values;
--- Part 4. Determination of the oil absorption value of compressed specimens;
---Part 5. Determination of specific surface area CTAB method;
---Part 6. Determination of color strength;
--- Part 7. Determination of pH;
--- Part 8. Determination of heating loss;
--- Part 10. Determination of ash;
--- Part 12. Inspection of impurities;
--- Part 14. Determination of sulfur content;
---Part 15. Determination of light transmittance of toluene extracts;
--- Part 17. Indirect measurement of particle size reflectance method;
---Part 18. Identification methods in natural rubber (NR);
--- Part 21. Determination of sieve residue water rinse method;
--- Part 22. Calculating process capability index using process control data;
--- Part 23. Sampling and identification of fugitive carbon black or other environmental particles;
--- Part 24. Determination of void volume;
---Part 25. Determination of carbon content;
--- Part 26. Determination of carbon content in carbon black feedstocks.
This part is the 25th part of GB/T 3780.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part was proposed by the China Petroleum and Chemical Industry Federation.
This part is under the jurisdiction of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35).
This section drafted by. Shandong Huadong Rubber Materials Co., Ltd., Hangzhou Zhongce Qingquan Industrial Co., Ltd., Zhonghao Heiyuan Chemical Research and Research
Jiyuan Co., Ltd., Jiangxi Black Cat Carbon Black Co., Ltd., Shandong Nster Carbon Black Co., Ltd., Sichuan Institute of Technology.
The main drafters of this section. Guo Lingzhi, Xu Jun, Nie Suqing, Dai Chuanyin, Lu Junying, Zhang Jianmin, Chen Jian, Jiang Liping, Xie Bin.
Carbon black - Part 25. Determination of carbon content
Caution - Personnel using this section should have hands-on experience in formal laboratory work. This section does not point out all possible security questions.
question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations.
1 Scope
This part of GB/T 3780 specifies the method for determining the total carbon content in carbon black samples by instrument.
This section applies to carbon black with intrinsic carbon content of 95% to 100% after incomplete combustion or thermal cracking.
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 3778 carbon black for rubber
GB/T 7044 pigment carbon black
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
HG/T 2725 Bulk Carbon Black Sampling Standard Method
3 Principle
The combustion boat containing the weighed sample is placed in a 1350 ° C tube furnace, the sample is completely burned in a continuous oxygen flow, and the carbon is oxidized.
Carbon dioxide, the gas stream passes through a trap filled with magnesium perchlorate, removes water vapor and particulates, and passes through the detection cell in the exact infrared spectrum.
The carbon dioxide concentration was measured at an infrared (IR) absorption detector at a wavelength.
4 instruments
4.1 Analytical balance with a graduation value of 0.1 mg.
4.2 Gravity convection oven, the temperature can be maintained (125 ± 5) °C.
4.3 Carbon Analyzer.
a) the combustion tube and the combustion boat, made of a suitable material (such as mullite, porcelain or zircon);
b) the sample is adsorbed on the tungsten oxide promoter to control the burning rate;
c) the sample is burned at 1350 ° C in air or oxygen-enriched air;
d) the combustion gas is removed by a desiccant (anhydrous magnesium perchlorate) to remove water vapor;
e) The detection system uses an infrared (IR) absorption detector to measure carbon dioxide, the wavelength of which has a linear response over the full range of possible concentrations.
Note. Analyzers equipped with multiple element detectors (such as carbon and sulfur analyzers) are also suitable for this method.
5 reagents and materials
5.1 Magnesium perchlorate, analytically pure.
5.2 High purity oxygen, purity ≥99.9%.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 3780.25-2018_English be delivered?Answer: Upon your order, we will start to translate GB/T 3780.25-2018_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 3780.25-2018_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 3780.25-2018_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.
|