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GB/T 5158.1-2011: Metallic powders -- Determination of oxygen content by reduction methods -- Part 1: General guidelines
Status: Valid GB/T 5158.1: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5158.1-2011 | English | 114 |
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Metallic powders -- Determination of oxygen content by reduction methods -- Part 1: General guidelines
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GB/T 5158.1-2011
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| GB/T 5158-1999 | English | 319 |
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Metallic powders--Determination of loss of mass on hydrogen reduction (hydrogen loss)
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GB/T 5158-1999
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| GB/T 5158-1985 | English | RFQ |
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Metallic powders--Determination of loss of mass on hydrogen reduction (hydrogen loss)
| Obsolete |
GB/T 5158-1985
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PDF similar to GB/T 5158.1-2011
Basic data | Standard ID | GB/T 5158.1-2011 (GB/T5158.1-2011) | | Description (Translated English) | Metallic powders -- Determination of oxygen content by reduction methods -- Part 1: General guidelines | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H16 | | Classification of International Standard | 77.160 | | Word Count Estimation | 6,678 | | Date of Issue | 2011-05-12 | | Date of Implementation | 2012-02-01 | | Quoted Standard | GB/T 5158.2; GB/T 5158.3; GB/T 5158.4; GB/T 5314 | | Adopted Standard | ISO 4491-1-1989, 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 specifies the method for the determination of the reduction of oxygen content in the metal powder General, gives the correct interpretation of the results obtained suggest. This part of the test method is usually used for all metals, alloys, tungsten carbide powder, and mixtures thereof. In the side test conditions the composition of the powder should be no volatile substances should remove the lubricant or organic binder. | GB/T 5158.1-2011: Metallic powders -- Determination of oxygen content by reduction methods -- Part 1: General guidelines
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. Metallic powders Determination of oxygen content by reduction methods Part 1. General guidelines
ICS 77.160
H16
National Standards of People's Republic of China
Metal powder
Determination of oxygen content reduction
Part 1. General
Metalicpowders-
Part 1. Generalguidelines
(ISO 4491-1. 1989, 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
Foreword
GB/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 1.
This part identical with ISO 4491-1. 1989 "Determination of the oxygen content of the metal powder reduction method - Part 1. General."
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 is proposed by the China Nonferrous Metals Industry Association.
The non-ferrous metal part by the National Standardization Technical Committee.
This section is Shenzhen, Hong Hai Industrial Co., Ltd., Shandong moon Technology Co., Ltd., China Nonferrous Metals Industry standard quality research metrology
Drafted.
The main drafters of this section. Ma Zhiping, Wang Shihong, Kang Jun, Zhang Ge, Wang Huafeng, Zhangjiang Feng.
Metal powder
Determination of oxygen content reduction
Part 1. General
1 Scope
This section GB/T 5158 specifies the determination of General reduction in the oxygen content of the metal powder, gives a correct interpretation of the results obtained
Suggest.
Test methods in this section are generally available for all metals, alloys, tungsten carbide powder, and mixtures thereof. Under test conditions the powder
Composition should be no volatile substances, organic binder or lubricant should be removed.
However, some limited stored depends on the nature of the analysis of the metal, which is defined in Chapter 4.
2 Normative references
The 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 /measuring the oxygen content in the second part of the T 5158.2 metal powder reduction method. mass loss during hydrogen reduction (hydrogen loss)
(ISO 4491-2.1997, IDT)
Determination of GB/T 5158.3 metal powder reduction of oxygen content - Part 3. hydrogen reducible oxygen (ISO 4491-3.1997,
IDT)
GB/T 5158.4 Determination of the oxygen content of the metal powder reduction method - Part 4. Restore - Determination of total oxygen (ISO 4491-4 extraction method.
1989, IDT)
GB/T 5314 powder metallurgy sampling method (ISO 3954. 1977, IDT)
3 Sampling
Powder sampling methods, see GB/T 5314.
Powder should be tested to receive state. Metal powders are usually readily with air and moisture response of the material, therefore, the subject for which the sample
Goods handling and storage should pay special attention. Remove the sample to be analyzed immediately.
4 meaning the results of the test method used to obtain the
4.1 hydrogen as a reducing agent
4.1.1 when tested under specified test temperature, only the following metal oxides may be all hydrogen reduction. Fe, Ni, Co, Cu, Ag, Sn,
Pb, W, Mo, Re.
All other common oxides are not reduced by hydrogen, in particular, Al2O3, SiO2, ZrO2, and other alkali metals, alkaline earth metals
And most rare earth oxides. Chromium, manganese, titanium and vanadium oxide can be partially restored.
4.1.2 Other reactions also occur during the restore process and composition of the powder.
a) hydrocarbons and water vapor and other gases adsorbed on the sample powder in the presence of the release during heating.
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