GB/T 17923-2017_English: PDF (GB/T17923-2017)
| Standard ID | USD | BUY PDF | Lead-Days | Standard Title (Description) | Status |
| GB/T 17923-2017 | 239 |
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Analytical method for oily sewage from marine petroleum development industry -- Infrared spectrophotometry
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| GB/T 17923-1999 | 279 |
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Analysis method for oil-bearing wast water from marine petroleum development industry
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| Standard ID | GB/T 17923-2017 (GB/T17923-2017) | | Description (Translated English) | Analytical method for oily sewage from marine petroleum development industry -- Infrared spectrophotometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Z17 | | Classification of International Standard | 07.060; 13.030.20 | | Word Count Estimation | 12,131 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | Older Standard (superseded by this standard) | GB/T 17923-1999 | | Regulation (derived from) | National Standard Announcement 2017 No. 29 | | Issuing agency(ies) | People's Republic of China General Administration of Quality Supervision, Inspection and Quarantine, China National Standardization Administration |
GB/T 17923-2017
Analytical method for oily sewage from marine petroleum development industry-Infrared spectrophotometry
ICS 07.060; 13.030.20
Z17
National Standards of People's Republic of China
Replacing GB/T 17923-1999
Offshore oil development Industrial oily wastewater analysis methods
Infrared spectrophotometry
Analytical mechanism for hydraulic steam from marine refinementindustry-
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅲ
1 range 1
2 Normative references 1
3 Terms and definitions 1
4 principle 1
5 Reagents and their preparation 1
6 instruments and equipment 2
7 sample collection, storage and transportation 2
8 Analysis Step 2
Record and calculate
10 precision and accuracy 4
Appendix A (informative) tetrachlorethylene approach 5
Appendix B (Normative) Determination of infrared spectrophotometer correction factor 6
Appendix C (Normative) Offshore Oil Development Industrial Oily Wastewater Analysis Results Record Table 7
Reference 9
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 17923-1999 "Offshore oil development industrial oily wastewater analysis." This standard and GB/T 17923-
The main changes compared to.1999 are as follows.
--- Analysis methods by non-dispersive infrared spectrophotometry changed to infrared spectrophotometry, the original version 5.1 and other terms of non-color
Scattered infrared measuring instrument were changed to 6.1 and other provisions of this version of the infrared spectrophotometer;
--- The extraction solvent used was changed from carbon tetrachloride to tetrachlorethylene, that is, the carbon tetrachloride in the original version 4.1 and other provisions were all changed
More in this version 5.2 and other provisions of the PCE;
--- Removed the original version of the sample extract over the purifying part of the content, namely 6.1 ~ 6.3,6.5 ~ 6.6,7.1.2 ~ 7.1.4,7.2.6 ~
7.2.9 and other terms;
--- Increase the method of precision reference range, precision changes to version 10 in the laboratory relative standard deviation of 2.8% ~
4.2%. Correctness from the original version of the 9 recovery rate range of 87.4% ~ 104% change to this version of 10 recovery rate range
80.8% ~ 104%, and the relative standard deviation between laboratories was 9.7%.
This standard proposed by the State Oceanic Administration.
This standard by the National Marine Standardization Technical Committee (SAC/TC283) centralized.
This standard was drafted unit. National Marine Environmental Monitoring Center, National Oceanographic Metrology Center, Beijing Huaxia Kechuang Instrument Co., Ltd.
the company.
The main drafters of this standard. Zhao Shilan, Yao Ziwei, Han Gengchen, Jiang Wenbo, Wang Yuhong.
This standard replaces the standards previously issued as.
--- GB/T 17923-1999.
Offshore oil development Industrial oily wastewater analysis methods
Infrared spectrophotometry
1 Scope
This standard specifies the use of infrared spectrophotometry Determination of Offshore Oil Industry in the discharge of oil-contaminated water in the analysis step
Steps, calculation methods and quality control requirements.
This standard applies to People's Republic of China within the waters, territorial waters, contiguous zone, exclusive economic zone, the continental shelf and the People's Republic of China jurisdiction
Determination of oil in oily wastewater from offshore oil development industry in other seas.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB 17378.3 Marine monitoring code Part 3. Sample collection, storage and transport
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Oilysewage
In the process of developing offshore oil containing fat (fatty acids, soap, fat, wax, etc.) and a variety of oils (mineral oil, animal and vegetable oils)
The sewage.
4 principle
Extraction of oily wastewater with tetrachlorethylene in the oil, respectively, with an infrared spectrophotometer extract was measured at 2930cm-1 (CH2
Stretching vibration of the CH bond in the group), 2960 cm -1 (stretching vibration of the CH bond in the CH3 group) and 3030 cm -1 (in the aromatic ring
CH key stretching vibration) at the absorbance value, absorbance value is proportional to the concentration of oil.
5 Reagents and their preparation
5.1 Pure water Ultrapure water preparation system, the conductivity of not more than 18.2MΩ · cm (25 ℃).
5.2 Tetrachlorethylene (C2Cl4). Analytical purity, should be measured at the wavelength of no absorption or low absorption. Refer to Appendix A for processing.
5.3 n-Hexadecane (CH3 (CH2) 14CH3] Chromatographic purity.
5.4 2,2,4-trimethylpentane. Also known as isooctane [Isooctane, (CH3) 3CCH2CH (CH3) 2], chromatographic purity.
5.5 Benzene (C6H6). Chromatographic purity.
5.6 Hydrochloric acid solution (1 1) 50 mL of concentrated hydrochloric acid (HCl, ρ = 1.18 g/mL, superior grade pure) was slowly added to 50 mL of water.
5.7 Anhydrous sodium sulfate (Na2SO4) Analytical purity, a certain amount of anhydrous sodium sulfate into the porcelain crucible, placed in a muffle furnace at 500 ℃ ±
Activated at 20 ° C for 4h, cooled to.200 ° C in a furnace, then transferred to a desiccator, cooled to room temperature, filled into a milled glass jar and dried in a desiccator
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