GB/T 17923-2017 English PDF

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GB/T 17923-2017: Analytical method for oily sewage from marine petroleum development industry -- Infrared spectrophotometry
Status: Valid

GB/T 17923: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 17923-2017	239	Add to Cart	3 days	Analytical method for oily sewage from marine petroleum development industry -- Infrared spectrophotometry	Valid
GB/T 17923-1999	279	Add to Cart	3 days	Analysis method for oil-bearing wast water from marine petroleum development industry	Obsolete

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Basic data

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: 12,129
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Older Standard (superseded by this standard): GB/T 17923-1999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): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 17923-2017: Analytical method for oily sewage from marine petroleum development industry -- Infrared spectrophotometry

---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.
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 Scope 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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