GB/T 28124-2025 English PDFGB/T 28124: Historical versions
Basic dataStandard ID: GB/T 28124-2025 (GB/T28124-2025)Description (Translated English): Gas analysis - Determination of the trace contents of hydrogen, oxygen, methane and carbon monoxide in inert gases - Gas chromatography with zirconia detector Sector / Industry: National Standard (Recommended) Date of Implementation: 2026-03-01 Older Standard (superseded by this standard): GB/T 28124-2011 GB/T 28124-2011: Determination of trace hydrogen, oxygen, methane and carbon monoxide in the inert gases -- Gas chromatographic method---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 trace hydrogen, oxygen, methane and carbon monoxide in the inert gases. Gas chromatographic method ICS 71.040.40 G86 National Standards of People's Republic of China Inert gas trace hydrogen, oxygen, methane, carbon monoxide Gas Chromatography Determinationoftracehydrogen, oxygen, methaneandcarbonmonoxide 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 ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee on Gas (SAC/TC206) centralized. This standard was drafted. Southwest Chemical Industry Research and Design Institute, Shanghai, love Chromatography Technology Co., Ltd., Fuzhou, product quality inspection. The main drafters of this standard. He Daoshan, Fang Hua, Lijian Hao, Chen melting, Chen Yali. Inert gas trace hydrogen, oxygen, methane, carbon monoxide Gas Chromatography1 ScopeThis standard specifies the trace of hydrogen, oxygen, methane, carbon monoxide measurement method inert gas measured by Zirconia detector gas chromatography. This standard applies to nitrogen, argon, helium, neon, krypton, xenon and other trace inert gases hydrogen, oxygen, methane, and carbon monoxide content Determination. Measuring range. (0 ~ 20) × 10-6 (volume fraction).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 3723 Sampling of chemical products for industrial use General Safety GB/T 6680 General rules for sampling liquid chemical products GB/T 6681 General rules for sampling gaseous chemical products3 Method summaryUsing zirconia solid battery as a GC detector. Sample gas component being tested hydrogen, oxygen, methane, carbon monoxide through the column After separation into the detector, resulting in a corresponding response signal chromatography, external standard. 4 equipment, materials 4.1 Instrument Gas chromatography with zirconia detector instrument. Detection limit. 0.05 × 10-6 (volume fraction). 4.2 The carrier gas Using an inert gas as a carrier gas. Carrier gas content measured component should be tested component content lower by about one order of magnitude than the sample gas, when When that does not meet the requirements, you should use the carrier gas purifier. Typically, the choice of carrier gas and sample the same main ingredient, can also choose other gas does not interfere with the determination of the carrier gas, such as. analysis of nitrogen, krypton, When xenon, optionally nitrogen or argon as a carrier gas. 4.3 Column Column length 3m, inner diameter 2mm, stainless steel column, the contents of 0.25mm ~ 0.40mm 13X molecular sieves. Allows the use of other equivalent column. 4.4 standard sample Standard dilution air samples to be tested with the same kind of main components, each component content (volume fraction) sample to be tested are similar, usually ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 28124-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 28124-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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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 28124-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 28124-2025 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. |
