GB/T 5158.2-2011 English PDFUS$174.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 5158.2-2011: Metallic powders -- Determination of oxygen content by reduction methods -- Part 2: Loss of mass on hydrogen reduction (hydrogen loss) Status: Valid
Basic dataStandard ID: GB/T 5158.2-2011 (GB/T5158.2-2011)Description (Translated English): Metallic powders -- Determination of oxygen content by reduction methods -- Part 2: Loss of mass on hydrogen reduction (hydrogen loss) Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H16 Classification of International Standard: 77.160 Word Count Estimation: 9,928 Date of Issue: 2011-05-12 Date of Implementation: 2012-02-01 Older Standard (superseded by this standard): GB/T 5158-1999 Quoted Standard: GB/T 5158.1 Adopted Standard: ISO 4491-2-1997, IDT Regulation (derived from): Announcement of Newly Approved National Standards No. 6 of 2011 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 Summary: This standard provides, under certain conditions, the metal powder in the dry pure hydrogen gas stream is heated, the quality of the determination of relative loss. The purpose of this section is to assess the chemical properties of the powder, measured by the method of the chemical properties of the powder metallurgy industry is very important. This part is not used to measure the content of a particular element method (see Appendix A and GB/T 5158. 1) This section applies to Table 1 for a list of non- alloyed, alloyed and some completely alloyed metal powder. Does not contain a lubricant for powder or a mixture of metal powder. Due to the presence of reducing, oxidizing or volatile metals or compounds (see Appendix A), the results would be affected. For this type of powder, apply its results need to be cautious, both supply and demand on the understanding of the results should be made ??consistent. GB/T 5158.2-2011: Metallic powders -- Determination of oxygen content by reduction methods -- Part 2: Loss of mass on hydrogen reduction (hydrogen loss)---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. Metallic powders Determination of oxygen content by reduction methods Part 2. Loss of mass on hydrogen reduction (hydrogen loss) ICS 77.160 H16 National Standards of People's Republic of China Replacing GB/T 5158-1999 Measuring the oxygen content of the metal powder reduction Part 2. Loss of mass (hydrogen loss) during the hydrogen reduction Part 2. Lossofmassonhydrogenreduction (hydrogenloss) (ISO 4491-2.1997, IDT) Issued on. 2011-05-12 2012-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 5158 "Determination of the oxygen content of the metal powder reduction method" is divided into four parts. --- Part 1. General; --- Part 2. Loss of mass (hydrogen loss) during the hydrogen reduction; --- Part 3. hydrogen reducible oxygen; --- Part 4. Restore - Determination of total oxygen extraction. This section GB/T 5158 Part 2. This part identical with ISO 4491-2.1997 "metal powder reduction method to measure the oxygen content - Part 2. Quality loss when hydrogen reduction Loss (hydrogen loss). " For ease of use, this section made the following editorial changes. a) "this International Standard" be replaced by "this section"; b) use a decimal point instead of a decimal comma ",". ","; c) Remove the preface to international standards. This Part replaces GB/T 5158-1999 "metal powder mass loss in the hydrogen reduction (hydrogen loss) determination." This section compared with GB/T 5158-1999, the main changes are as follows. --- Remove the ISO foreword; --- Increasing the normative references; --- The original standard and ISO 4491-2.1997 differentially partly modified to be consistent. Appendix A of this part is a normative appendix. This part is proposed by the China Nonferrous Metals Industry Association. The non-ferrous metal part by the National Standardization Technical Committee. The powder in part by the Institute of Metallurgy, Central South University, Shandong moon Technology Co., Ltd., China Nonferrous Metals Industry standard quality research metrology Drafted. The main drafters of this section. Liao Send Joe Zheng Lingzhi, Wang Shihong, Dong Feng Wen. This part of the standard replaces the previous editions are. --- GB/T 5158-1999. Measuring the oxygen content of the metal powder reduction Part 2. Loss of mass (hydrogen loss) during the hydrogen reduction1 ScopeThis section GB/T 5158 provisions under certain conditions, the metal powder is heated in a dry pure hydrogen gas stream, the quality is relatively Determination of loss. The purpose of this section is to assess chemical powder properties, chemical properties which are measured in the powder metallurgy industry is very important. This part is not used as a method of measuring the content of a specific element (see Appendix A and GB/T 5158.1). This section applies to listed in Table 1 of unalloyed, partially alloyed and fully alloyed metal powders. Not for containing The lubricant mixture of metal powder or a powder. Due to the presence of a reducing, oxidizing or volatile metals or compounds (see Appendix A), the results will be affected. For this type of powder, the application of the results need to be cautious, both parties recognize the results should agree.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 5158.1 Determination of the oxygen content of the metal powder reduction method - Part 1. General (ISO 4491-1. 1989, IDT)3 Reagents3.1 hydrogen, oxygen content of not more than 0.005% (mass fraction), the dew point is not higher than -45 ℃. 3.2 nitrogen (or argon), an oxygen content of not more than 0.005% (mass fraction), the dew point is not higher than -45 ℃.4 Instrument4.1 Balances The balance should have sufficient range, weighing accuracy to 0.0001g. 4.2 tubular furnace Temperature tube furnace can be specified in Table 1 of continuous operation, temperature control system should maintain the temperature inside the tube portion boat in Table 1 Regulation Within the given temperature range. Test apparatus shown in Figure 1. Note. When the test magnetic powder recommended wound furnace using non-inductive winding. 4.3 airtight tube Airtight tube is made of quartz or refractory material (e.g. a dense aluminum oxide). The inner diameter of the pipe between φ25mm ~ φ40mm, length of the tube should be So that each end of the furnace extending 200mm. When large amount of hydrogen loss measurement, as long as the tables meet a given temperature and time, and get results obtained with the recommended means Consistent results, you can use the larger of the furnace can be measured several samples simultaneously than specified in this section. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 5158.2-2011_English be delivered?Answer: Upon your order, we will start to translate GB/T 5158.2-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 5158.2-2011_English with my colleagues?Answer: Yes. 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