GB/T 28125.1-2025 English PDFGB/T 28125.1: Historical versions
Basic dataStandard ID: GB/T 28125.1-2025 (GB/T28125.1-2025)Description (Translated English): Gas analysis - Determination of the contents of hazardous materials in air separation process - Part 1: Determination of contents of methane, acetylene, carbon dioxide and hydrocarbons Sector / Industry: National Standard (Recommended) Date of Implementation: 2026-03-01 Older Standard (superseded by this standard): GB/T 28125.1-2011 GB/T 28125.1-2011: Determination of hazardous materials in air separation process -- Part 1: Determination of hydrocarbons---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. Determination of hazardous materials in air separation process Part 1. Determination of hydrocarbons ICS 71.040.40 G86 National Standards of People's Republic of China Air separation process measurement of hazardous substances Part 1. Determination of hydrocarbons Part 1. Determinationofhydrocarbons Issued on. 2011-12-30 2012-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 28125 "air separation process hazardous substances Determination" is divided into three parts. --- Part 1. Determination of hydrocarbons; --- Part 2. Determination of mineral oil; --- Part 3. Determination of nitrogen oxides. This section GB/T 28125 Part 1. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by the China Petroleum and Chemical Industry Association. This part of the National Gas Standardization Technical Committee (SAC/TC206) centralized. This section is drafted. Dalian Institute of Chemical Physics, Chinese Academy of Science and Technology Development Company Kona, COMAQ Instruments, Shanghai Hua love color Spectrum Technologies Co., Southwest Chemical Industry Research and Design Institute. The main drafters of this section. Wangshao Nan, Wang Guiyue, Fang Hua, Niu Yan-dong. Air separation process measurement of hazardous substances Part 1. Determination of hydrocarbons1 ScopeThis section provides an air separation processes of liquid oxygen, liquid air, measured air suction outlet side and liquid oxygen tank in hydrocarbons law. This section applies to oxygen or air, online and offline monitoring to detect total hydrocarbons and C1 ~ C4 hydrocarbons. This section measured C1 ~ C4 hydrocarbons include. methane, ethane, ethylene, acetylene, propane, propylene, n-butane, isobutane, 1,3-butylene Diene. This section recommended measurement of these components, but are not limited to these components. When specific monitoring, rational analysis should ring surrounding an air separation unit Environment, increase monitoring of air and other oxygen may endanger the safe operation of an air separation of organic components.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 3634.2 hydrogen - Part 2. purity, high purity and ultra pure hydrogen GB/T 3723 Sampling of chemical products for industrial use General Safety GB/T 4844 pure helium, high purity helium and ultra-pure helium GB/T 6681 General rules for sampling gaseous chemical products GB/T 8984 of carbon monoxide, carbon dioxide and hydrocarbons by gas chromatography GB 16912 Deep frozen production of oxygen and related gas safety technical regulations JB6898 cryogenic liquid storage equipment safety rules JJG700 GC verification procedures Method 3 3.1 using a gas chromatograph equipped with a helium ionization detector, hydrocarbon samples was measured after removal of the sample pre-separation process content. 3.2 with the use of a flame ionization detector gas chromatography, sample pre-concentration process or direct injection measurement sample total carbon Hydrogen compound content and hydrocarbon content. 3.3 When the above method of measurement results objection, hydrocarbons measured helium ionization gas chromatography to arbitration.4 Instrument4.1 helium ionization gas chromatography Using helium ionization gas chromatograph equipped with pneumatic automatic cutting device. 4.2 flame ionization gas chromatograph 4.2.1 flame ionization gas chromatograph used shall comply with the provisions of JJG700. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 28125.1-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 28125.1-2025_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 28125.1-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 28125.1-2025 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. |
