GB/T 6818-2019 PDF English
US$210.00 · In stock · Download in 9 secondsGB/T 6818-2019: Octanol (2-ethyl hexanol) for industrial use Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 6818: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 6818-2019 | English | 210 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Octanol (2-ethyl hexanol) for industrial use
| Valid |
| GB/T 6818-1993 | English | 279 |
Add to Cart
|
3 days
|
2-Ethyl hexanol for industrial use
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 6818-2019
GB/T 6818-2019: Octanol (2-ethyl hexanol) for industrial use---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT6818-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.080.60
G 17
Replacing GB/T 6818-1993
Octanol (2-ethylhexanol) for industrial use
Issued on. JUNE 04, 2019
Implemented on. MAY 01, 2020
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Technical requirements... 5
4 Test methods... 5
5 Inspection rules... 13
6 Marks and accompanying documents... 14
7 Packaging, transportation and storage... 15
Annex A (Normative) Typical chromatogram for the determination of 2-
ethylhexanol and impurities, and the relative retention value and relative mass
correction factor of each component... 16
Annex B (Informative) Safety... 18
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 6818-1993 "2-Ethyl hexanol for industrial use".
Compared with GB/T 6818-1993, in addition to the editorial modifications, the
main technical changes are as follows.
- revise the indicator of "2-ethylhexanol" 99.5% to 99.6%; add technical
requirements for "2-ethyl-4-methylpentanol" (see Table 1 of this Edition,
3.2 of Edition 1993);
- modify the determination method for the density of 2-ethylhexanol (see 4.3
of this Edition, 4.2 of Edition 1993);
- modify the test method for 2-ethylhexanol; add the test method for 2-ethyl-
4-methylpentanol (see 4.4 of this Edition, 4.3 of Edition 1993);
- add Carl-Fischer coulometric method for determining moisture (see 4.8 of
this Edition).
This Standard was proposed by China Petroleum and Chemical Industry
Federation.
This Standard shall be under the jurisdiction of Subcommittee on Organic
Chemicals of National Technical Committee on Chemicals of Standardization
Administration of China (SAC/TC 63/SC 2).
The drafting organizations of this Standard. Nanjing Chengzhi Clean Energy
Co., Ltd., Anqing Refinery and Chemical Suguang Butanol Chemical Co., Ltd.,
Tianjin Bohua Yongli Chemical Co., Ltd., Shandong Jianlan Chemical Co., Ltd.,
Sinopec Nanjing Chemical Research Institute Co., Ltd., Luxi Chemical Group
Co., Ltd., China Petroleum & Chemical Corporation Qilu Branch Second
Fertilizer Plant, PetroChina Jilin Petrochemical Branch, China Petroleum &
Chemical Corporation Beijing Research Institute of Chemical Industry.
Main drafters of this Standard. Gao Xianhu, Sun Xueling, Wang Shuqin, Cheng
Nigen, Pang Shuanlin, Geng Yipei, Wang Lin, Hu Chonglan, Sun Yuxia, Pang
Yuna, Chen Jun, Wang Haiquan, Zhu Xiaolin, Huang Yu.
Versions of standard substituted by this Standard are.
- GB/T 6818-1986, GB/T 6818-1993.
Octanol (2-ethylhexanol) for industrial use
1 Scope
This Standard specifies technical requirements, test methods, inspection rules,
marks and accompanying documents, packaging, transportation and storage
for octanol (2-ethylhexanol) for industrial use.
This Standard is applicable to octanol (2-ethylhexanol) for industrial use
prepared by propylene oxo synthesis method and acetaldehyde condensation
method.
Molecular formula. C8H18O
Relative molecular mass. 130.23 (according to 2016 international relative
atomic mass)
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 601, Chemical reagent - Preparations of standard volumetric solutions
GB/T 603, Chemical reagent - Preparations of reagent solutions for use in
test methods
GB/T 2013, Standard test method for density of liquid petrochemical
products
GB/T 3143, Color determination method of liquid chemicals (Hazen unit -
Platinum-cobalt scale)
GB/T 6283, Chemical products - Determination of water Karl-Fischer method
(general method)
3 Technical requirements
3.1 Appearance. Transparent liquid, no suspended matter.
3.2 The technical requirements for industrial octanol (2-ethylhexanol) shall meet
the requirements of Table 1.
4 Test methods
WARNING - Some procedures specified in the test method may lead to
dangerous situations. The operator shall take appropriate safety and
protective measures.
4.1 General
The reagents and water used in this Standard, when other requirements are
not specified, refer to analytically-pure reagents and grade three water that
meets the requirements of GB/T 6682.
4.2 Determination of chromaticity
According to GB/T 3143.
4.3 Determination of density
According to GB/T 2013.The temperature correction coefficient K value of the
sample density is 0.00073 g/(cm3·°C).
4.4 Determination of mass fraction of 2-ethylhexanol and 2-ethyl-4-
methylpentanol
4.4.1 Principle
Inject an appropriate amount of specimen into the gas chromatograph. 2-
Ethylhexanol and impurities are effectively separated on a capillary column.
Use a hydrogen flame ionization detector (FID) to measure the peak area of
each component. Use the corrected area normalization method to calculate the
concentration of each component. After deducting the water, calculate the
content of 2-ethylhexanol, 2-ethyl-4-methylpentanol and other impurities.
4.4.2 Reagents and materials
4.4.3 Instruments
4.4.3.1 Gas chromatograph. Equipped with hydrogen flame ionization detector
(FID) and sample injection shunt device. The sensitivity and stability of the
whole machine comply with the relevant regulations in GB/T 9722.The linear
range of the instrument shall meet the requirements of quantitative analysis.
4.4.3.2 Recorder. Chromatographic data workstation.
4.4.4 Analysis steps
4.4.4.1 Determination of relative mass correction factor
4.4.4.2 Determination of sample
Start the gas chromatograph. Debug the instrument according to the
chromatographic operating conditions listed in Table 2.Analyze the specimen
after the baseline is stable. Use corrected area normalization method to quantify.
Calculate the content of each component. The correction factors for other
unknown peaks are calculated based on 2-ethyl-4-methylpentanol.
4.4.5 Result calculation
The mass fraction w1 of 2-ethylhexanol and the mass fraction w2 of 2-ethyl-4-
methylpentanol are calculated according to formula (2).
4.5 Determination of acid content (in terms of acetic acid)
4.5.1 Principle
In ethanol medium, phenolphthalein is used as indicator, and sodium hydroxide
standard titration solution is used for neutralization and titration.
4.5.2 Reagents
4.5.2.1 Ethanol. 95% (volume fraction).
4.5.2.2 Sodium hydroxide standard titration solution. c(NaOH)=0.05mol/L.
4.5.2.3 Phenolphthalein indicator solution. 10g/L.
4.5.3 Instruments
Burette. 10mL; division value is 0.05mL.
4.6 Determination of the mass fraction of carbonyl compounds
4.6.1 Principle
The carbonyl compound in the sample reacts with hydroxylamine hydrochloride
to form an oxime. At the same time, it releases hydrochloric acid of the same
amount. Use potassium hydroxide ethanol standard titration solution to conduct
potentiometric titration for free hydrochloric acid.
4.6.2 Reagents
4.6.2.1 Absolute ethanol.
4.7 Sulfuric acid color test
4.7.1 Principle
Under certain conditions, use sulfuric acid to process the specimen. Compare
the color produced by the specimen with the same volume chromaticity
standard.
4.7.2 Reagents
Sulfuric acid. Guaranteed reagent.
4.7.3 Test steps
Use sulfuric acid solution to clean the used instruments. Then use tap water
and distilled water rinse and dry.
4.8 Determination of moisture content
4.8.1 Carl-Fischer direct coulometric titration (arbitration law)
Measure according to GB/T 6283.Measure the volume of the specimen to
10.0mL or take an appropriate volume according to the moisture content in the
specimen.
5 Inspection rules
5.1 Octanol for industrial use shall be inspected by the quality inspection
department of the manufacturer. Type inspection items are appearance and all
inspection items specified in Table 1, of which appearance, color, density, 2-
ethylhexanol, acid content, sulfuric acid color test, moisture, 2-ethyl-4-
methylpentanol are items of the exit-factory inspection. Under normal
circumstances, the type inspection shall be carried out at least once every 3
months. The type inspection should be conducted in one of the following cases.
5.3 The inspection result shall be judged according to the rounding value
comparison method stipulated in GB/T 8170 whether it meets this Standard. If
an indicator of the test result does not meet the requirements of this Standard,
the sampling shall be doubled for re-inspection. Even if one indicator does not
meet the requirements of this Standard in the re-inspection result, the whole
batch of products is nonconforming.
6 Marks and accompanying documents
6.1 The packaging containers for octanol for industrial use shall have strong
and clear marks 1, including.
7 Packaging, transportation and storage
7.1 Packaging
Octanol for industrial use shall be packaged in a dry, clean tanker or other
packaging that meets the requirements.
7.2 Transportation
The transportation of octanol for industrial use shall comply with the relevant
regulations on the transportation of hazardous chemicals. It shall be handled
with care, to avoid collision. Prevent rain and sun.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 6818-2019 be delivered?Answer: The full copy PDF of English version of GB/T 6818-2019 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 6818-2019_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 6818-2019_English will be deemed to be sold to your employer/organization who actually paid 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. www.ChineseStandard.us -- GB/T 6818-2019 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. Question 5: Should I purchase the latest version GB/T 6818-2019?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 6818-2019 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. How to buy and download a true PDF of English version of GB/T 6818-2019?A step-by-step guide to download PDF of GB/T 6818-2019_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 6818-2019".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|