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SN/T 2383-2017: Liquid chemical products. Determination of density and relative density. Digital densty meter method
Status: Valid SN/T 2383: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2383-2017 | English | 209 |
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Liquid chemical products. Determination of density and relative density. Digital densty meter method
| Valid |
SN/T 2383-2017
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| SN/T 2383-2009 | English | 359 |
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3 days [Need to translate]
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Liquid chemical products. Determination of density and relative density. Digital density meter method
| Obsolete |
SN/T 2383-2009
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PDF similar to SN/T 2383-2017
Basic data | Standard ID | SN/T 2383-2017 (SN/T2383-2017) | | Description (Translated English) | Liquid chemical products. Determination of density and relative density. Digital densty meter method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | G04 | | Classification of International Standard | 71.100 | | Word Count Estimation | 9,915 | | Date of Issue | 2017-07-21 | | Date of Implementation | 2018-03-01 | | Older Standard (superseded by this standard) | SN/T 2383-2009 | | Quoted Standard | GB/T 6680 | | Regulation (derived from) | State-Quality-Inspection-Accreditation (2017) 337 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies methods for determining the density and relative density of liquid chemicals using digital densitometers. This standard applies to liquid chemicals with a vapor pressure below 100 kPa and a kinematic viscosity at test temperature of less than 15 000 mm^(2)/s. | SN/T 2383-2009: Liquid chemical products. Determination of density and relative density. Digital density meter method
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Liquid chemical products.Determination of density and relative density.Digital density meter method
Exit inspection and quarantine industry standard book People's Republic of China
Determination of liquid chemicals density and relative density
Digital density meter method
Posted 2009-09-02
2010-03-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This revised standard adopts the American Society for Testing and Materials standard ASTMD4052-1996 (2002) εl "Digital Density Meter liquid Density
And the standard method of relative density "(in English).
This standard redrafted according ASTMD4052-1996 (2002) εl. For ease of comparison, listed in Appendix A of this standard reg
Numbering ASTMD4052-1996 (2002) εl reg control list numbered.
This standard ASTMD4052-1996 (2002) εl there are differences in the technical content.
--- Scope of petroleum distillates, measured density and relative density of viscous oil to density and relative density of liquid chemicals
Determination.
For ease of use, this standard ASTMD4052-1996 (2002) εl made the following editorial changes.
--- Chapter 2 to normative references.
--- Remove the technical requirements of irrelevant content (reg number 1.2,5,12.3,14.2,15).
Appendix A of this standard is the data appendix.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China, Ningbo Entry-Exit Inspection and Quarantine Bureau Technology Center, People's Republic of China Liaoning
Entry-Exit Inspection and Quarantine of Jiangsu People's Republic of China.
The main drafters of this standard. bud Wu, Lin Zhenxing, Yang Chao, Wei Qun, Mouming Ren, Hou Jin, Xi Zhongwei, to show filial piety.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of liquid chemicals density and relative density
Digital density meter method
Warning. This standard is concerned there are some hazardous materials, operations and equipment, but the use of this standard does not imply that all of the safety issues and
contact. Users of this standard should establish appropriate safety and health measures and regulations before operating.
1 Scope
This standard specifies the method for determination of density using a digital density and relative density of liquid chemicals meter measurements.
This standard applies at 15 ℃ ~ 35 ℃ temperature measurement can be processed into a single phase liquid, and vapor pressure at 80kPa, kinematic viscosity lower than
15000mm2/s of liquid chemicals.
Note. Because the liquid chemical species category range should be measured to ensure that the sample will not damage the digital density meter (such as corrosion injector head or sample tubes, etc.), and easy to clean.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 6680 General rules for sampling liquid chemical products
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Mass per unit volume at a specified temperature material, units of g/mL or kg/m3.
3.2
The density of a substance at a given temperature and the reference temperature of the water density ratio.
4. Summary
A small amount (about 0.7mL) liquid sample is injected into the sample tube vibration, changes in the quality of the sample tube causes a change in the vibration frequency, combined
Calibration data density of the sample is calculated.
5 Instruments
5.1 Digital Density Meter. U-shaped vibrating sample tube equipped with an electronic excitation and vibration frequency count and display. Determination of the process,
Can accurately determine the temperature of the sample or with the ability of controlling the temperature of the sample according to 5.2, while the precision required by this standard shall be met.
5.2 circulating water bath (optional). enables the temperature of the circulating liquid is maintained within the desired temperature range of ± 0.05 ℃, the temperature control unit may
As part of the densitometer.
5.3 Syringe. volume of at least 2mL, with a beak or vibrating orifice matching interface.
5.4 flow or pressure regulator. As with pressed into the sample injection or inhalation mode an optional device densitometer.
Thermometer 5.5. 0.1 ℃ indexing and calibrated. For ease of set up and observe the test temperature, so that it is fixed to the density meter.
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