1
/
von
8
PayPal, credit cards. Download editable-PDF and invoice in 1 second!
GB/T 4649-2018 English PDF (GBT4649-2018)
GB/T 4649-2018 English PDF (GBT4649-2018)
Normaler Preis
$145.00 USD
Normaler Preis
Verkaufspreis
$145.00 USD
Grundpreis
/
pro
Versand wird beim Checkout berechnet
Verfügbarkeit für Abholungen konnte nicht geladen werden
Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB/T 4649-2018
Historical versions: GB/T 4649-2018
Preview True-PDF (Reload/Scroll if blank)
GB/T 4649-2018: Ethylene glycol for industrial use
GB/T 4649-2018
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.080.60
G 16
Replacing GB/T 4649-2008
Ethylene glycol for industrial use
ISSUED ON: MAY 14, 2018
IMPLEMENTED ON: DECEMBER 01, 2018
Issued by: State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative references ... 6
3 Technical requirements ... 7
4 Test methods ... 8
5 Inspection rules ... 11
6 Marks, labels, and accompanying documents ... 11
7 Packaging, transportation, and storage ... 12
Appendix A (Normative) Determination of color ... 13
Appendix B (Normative) Determination of density ... 15
Appendix C (Normative) Determination of ash content ... 16
Appendix D (Normative) Determination of chloride ion ... 17
Appendix E (Informative) Safety ... 19
Foreword
This Standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 4649-2008 “Ethylene glycol for industrial use -
Specification”.
Compared with GB/T 4649-2008, the main changes of this Standard are as
follows:
- Delete the description of production process of ethylene glycol (see Clause
1; Clause 1 of the 2008 edition);
- Delete the technical requirements for qualified products (see Table 1; Table
1 of the 2008 edition);
- CHANGE “Superior product” to “Polyester grade” and “First-class product”
to “Industrial grade” (see Table 1; Table 1 of the 2008 edition);
- CHANGE the appearance requirement of polyester grade and industrial
grade products from “Colorless and transparent without mechanical
impurities” to “Transparent liquid, without mechanical impurities” (see Table
1; Table 1 of the 2008 edition);
- CHANGE the content index of polyester grade ethylene glycol from
“≥99.8%” to “≥99.9%”, and the content index of diethylene glycol from
“≤0.10%” to “≤0.050%”. CHANGE the diethylene glycol content of industrial
grade ethylene glycol from “≤0.80%” to “≤0.600%”, and the water content
index from “≤0.10%” to “≤0.08%” (see Table 1; Table 1 of the 2008 edition);
- ADD 1,2-butanediol, 1,4-butanediol, 1,2-hexanediol, and vinyl carbonate
items with the index “Report” (see Table 1; Table 1 of the 2008 edition);
- ADD 250 nm for the polyester grade ultraviolet transmittance with the index
“Report” (see Table 1; Table 1 of the 2008 edition);
- For polyester grade, ADD chloride ion item and test method, with the index
“≤0.5 mg/kg” (see Table 1 and 4.14; 5.7 of the 2008 edition);
- CHANGE the unit of measurement for items such as acidity, iron, ash
content, aldehyde content from “%” to “mg/kg” (see Table 1; Table 1 of the
2008 edition);
- Modify the gravimetric test requirements for the dispute of appearance
visual determination results (see 4.3; 4.1 of the 2008 edition);
Ethylene glycol for industrial use
Caution - This Standard does not address all possible safety problems.
Producers must explain to users the hazards of the product and the safety
and protective measures in use. The users of this Standard are
responsible for taking appropriate safety and health measures and
ensuring compliance with the conditions specified in relevant national
regulations.
1 Scope
This Standard specifies the technical requirements, test methods, inspection
rules, marks, labels, and accompanying documents, packaging, transportation,
and storage of ethylene glycol for industrial use.
This Standard applies to ethylene glycol used as monomers for the production
of polyesters and alkyds and as electrolytes, antifreezes, plasticizers, solvents,
etc. for electrolytic capacitors.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GB/T 2013-2010 Standard test method for density of liquid petrochemical
products
GB/T 3049 Chemical products for industrial use - General method for
determination of iron content - 1,10-Phenanthroline spectrophotometric
method
GB/T 3143 Color determination method of liquid chemicals (Hazen unit -
Platinum-cobalt scale)
GB/T 3723 Sampling of chemical products for industrial use - Safety in
sampling
GB/T 4472-2011 Determination of density and relative density for chemical
products
4.2 General provision
Unless otherwise stated, only reagents confirmed as analytically pure and
Grade 3 water meeting GB/T 6682 are used in the analysis.
4.3 Determination of appearance
TAKE 50 mL~60 mL of the sample of ethylene glycol for industrial use; PLACE
it in a clean and dry 100 mL colorimetric tube; under the transmission of sunlight
or fluorescent lamp, visually inspect it directly.
In case of dispute, TAKE 100 g±0.5 g of sample; USE a constant-weight No. 4
glass filter crucible to suction-filter. The suction-filtration rate shall be controlled
so that the filtrate is in the form of drops. USE distilled water to wash the glass
filter crucible 4 times~5 times. The dosage each time is about 20 mL. Then,
TRANSFER the glass filter crucible into an oven; DRY at 105 °C±2 °C for at
least 45 min; TAKE out; COOL in a desiccator for 30 min and weigh, accurate
to 0.0001 g. DRY the glass filter crucible for 30 min again; TAKE out; COOL in
a desiccator for 30 min and weigh. This is repeated until the difference between
the two consecutive weighs does not exceed 0.0004 g. Compared with the
glass filter crucible before filtration, when the increment is not more than 0.001
g, it is considered that there is no mechanical impurity.
4.4 Determination of ethylene glycol, diethylene glycol, 1,4-butanediol,
1,2-butanediol, 1,2-hexanediol, vinyl carbonate content
According to the provisions of GB/T 14571.2, carry out the determination.
4.5 Determination of color
According to the provisions of Appendix A, carry out the determination.
4.6 Determination of density
According to the provisions of Appendix B, carry out the determination.
4.7 Determination of boiling range
It shall be carried out according to the provisions of GB/T 7534-2004. The heat
source is a 500 W electric furnace or a gas lamp. The master thermometer is a
rod-shaped glass thermometer with a scale value of 150 °C~220 °C and a
division value of 0.1 °C. The distance between the tip of the temperature
sensing bulb and the first scale line is at least 100 mm. The 104C-75
thermometer recommended in Table 1 of GB/T 7534-2004 may also be used.
The difference between two repeated determination results, for the initial boiling
point, shall be no more than 0.5 °C, and for the dry point, shall be no more than
It shall be carried out according to the provisions of GB/T 14571.5 or Appendix
D. When the result is controversial, GB/T 14571.5 is used as the arbitration
method.
5 Inspection rules
5.1 Inspection classification
All index items in Table 1 are type inspection items and are exit-factory
inspection items except for boiling range, density, iron content, ash content, and
chloride ion. When one of the following conditions is encountered, it shall carry
out the type inspection:
a) Every 3 months during normal production;
b) Key production process updates and major equipment changes;
c) The main raw materials change and affect the product quality;
d) Production resumes a...
Get QUOTATION in 1-minute: Click GB/T 4649-2018
Historical versions: GB/T 4649-2018
Preview True-PDF (Reload/Scroll if blank)
GB/T 4649-2018: Ethylene glycol for industrial use
GB/T 4649-2018
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.080.60
G 16
Replacing GB/T 4649-2008
Ethylene glycol for industrial use
ISSUED ON: MAY 14, 2018
IMPLEMENTED ON: DECEMBER 01, 2018
Issued by: State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative references ... 6
3 Technical requirements ... 7
4 Test methods ... 8
5 Inspection rules ... 11
6 Marks, labels, and accompanying documents ... 11
7 Packaging, transportation, and storage ... 12
Appendix A (Normative) Determination of color ... 13
Appendix B (Normative) Determination of density ... 15
Appendix C (Normative) Determination of ash content ... 16
Appendix D (Normative) Determination of chloride ion ... 17
Appendix E (Informative) Safety ... 19
Foreword
This Standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 4649-2008 “Ethylene glycol for industrial use -
Specification”.
Compared with GB/T 4649-2008, the main changes of this Standard are as
follows:
- Delete the description of production process of ethylene glycol (see Clause
1; Clause 1 of the 2008 edition);
- Delete the technical requirements for qualified products (see Table 1; Table
1 of the 2008 edition);
- CHANGE “Superior product” to “Polyester grade” and “First-class product”
to “Industrial grade” (see Table 1; Table 1 of the 2008 edition);
- CHANGE the appearance requirement of polyester grade and industrial
grade products from “Colorless and transparent without mechanical
impurities” to “Transparent liquid, without mechanical impurities” (see Table
1; Table 1 of the 2008 edition);
- CHANGE the content index of polyester grade ethylene glycol from
“≥99.8%” to “≥99.9%”, and the content index of diethylene glycol from
“≤0.10%” to “≤0.050%”. CHANGE the diethylene glycol content of industrial
grade ethylene glycol from “≤0.80%” to “≤0.600%”, and the water content
index from “≤0.10%” to “≤0.08%” (see Table 1; Table 1 of the 2008 edition);
- ADD 1,2-butanediol, 1,4-butanediol, 1,2-hexanediol, and vinyl carbonate
items with the index “Report” (see Table 1; Table 1 of the 2008 edition);
- ADD 250 nm for the polyester grade ultraviolet transmittance with the index
“Report” (see Table 1; Table 1 of the 2008 edition);
- For polyester grade, ADD chloride ion item and test method, with the index
“≤0.5 mg/kg” (see Table 1 and 4.14; 5.7 of the 2008 edition);
- CHANGE the unit of measurement for items such as acidity, iron, ash
content, aldehyde content from “%” to “mg/kg” (see Table 1; Table 1 of the
2008 edition);
- Modify the gravimetric test requirements for the dispute of appearance
visual determination results (see 4.3; 4.1 of the 2008 edition);
Ethylene glycol for industrial use
Caution - This Standard does not address all possible safety problems.
Producers must explain to users the hazards of the product and the safety
and protective measures in use. The users of this Standard are
responsible for taking appropriate safety and health measures and
ensuring compliance with the conditions specified in relevant national
regulations.
1 Scope
This Standard specifies the technical requirements, test methods, inspection
rules, marks, labels, and accompanying documents, packaging, transportation,
and storage of ethylene glycol for industrial use.
This Standard applies to ethylene glycol used as monomers for the production
of polyesters and alkyds and as electrolytes, antifreezes, plasticizers, solvents,
etc. for electrolytic capacitors.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GB/T 2013-2010 Standard test method for density of liquid petrochemical
products
GB/T 3049 Chemical products for industrial use - General method for
determination of iron content - 1,10-Phenanthroline spectrophotometric
method
GB/T 3143 Color determination method of liquid chemicals (Hazen unit -
Platinum-cobalt scale)
GB/T 3723 Sampling of chemical products for industrial use - Safety in
sampling
GB/T 4472-2011 Determination of density and relative density for chemical
products
4.2 General provision
Unless otherwise stated, only reagents confirmed as analytically pure and
Grade 3 water meeting GB/T 6682 are used in the analysis.
4.3 Determination of appearance
TAKE 50 mL~60 mL of the sample of ethylene glycol for industrial use; PLACE
it in a clean and dry 100 mL colorimetric tube; under the transmission of sunlight
or fluorescent lamp, visually inspect it directly.
In case of dispute, TAKE 100 g±0.5 g of sample; USE a constant-weight No. 4
glass filter crucible to suction-filter. The suction-filtration rate shall be controlled
so that the filtrate is in the form of drops. USE distilled water to wash the glass
filter crucible 4 times~5 times. The dosage each time is about 20 mL. Then,
TRANSFER the glass filter crucible into an oven; DRY at 105 °C±2 °C for at
least 45 min; TAKE out; COOL in a desiccator for 30 min and weigh, accurate
to 0.0001 g. DRY the glass filter crucible for 30 min again; TAKE out; COOL in
a desiccator for 30 min and weigh. This is repeated until the difference between
the two consecutive weighs does not exceed 0.0004 g. Compared with the
glass filter crucible before filtration, when the increment is not more than 0.001
g, it is considered that there is no mechanical impurity.
4.4 Determination of ethylene glycol, diethylene glycol, 1,4-butanediol,
1,2-butanediol, 1,2-hexanediol, vinyl carbonate content
According to the provisions of GB/T 14571.2, carry out the determination.
4.5 Determination of color
According to the provisions of Appendix A, carry out the determination.
4.6 Determination of density
According to the provisions of Appendix B, carry out the determination.
4.7 Determination of boiling range
It shall be carried out according to the provisions of GB/T 7534-2004. The heat
source is a 500 W electric furnace or a gas lamp. The master thermometer is a
rod-shaped glass thermometer with a scale value of 150 °C~220 °C and a
division value of 0.1 °C. The distance between the tip of the temperature
sensing bulb and the first scale line is at least 100 mm. The 104C-75
thermometer recommended in Table 1 of GB/T 7534-2004 may also be used.
The difference between two repeated determination results, for the initial boiling
point, shall be no more than 0.5 °C, and for the dry point, shall be no more than
It shall be carried out according to the provisions of GB/T 14571.5 or Appendix
D. When the result is controversial, GB/T 14571.5 is used as the arbitration
method.
5 Inspection rules
5.1 Inspection classification
All index items in Table 1 are type inspection items and are exit-factory
inspection items except for boiling range, density, iron content, ash content, and
chloride ion. When one of the following conditions is encountered, it shall carry
out the type inspection:
a) Every 3 months during normal production;
b) Key production process updates and major equipment changes;
c) The main raw materials change and affect the product quality;
d) Production resumes a...
Share







