GB/T 5161-2025 English PDFGB/T 5161: Historical versions
Basic dataStandard ID: GB/T 5161-2025 (GB/T5161-2025)Description (Translated English): Metallic powder - Determination of effective density - Liquid immersion method Sector / Industry: National Standard (Recommended) Date of Implementation: 2026-03-01 Older Standard (superseded by this standard): GB/T 5161-2014 GB/T 5161-2014: Metallic powders -- Determination of effective density -- Liquid immersion method---This is a DRAFT version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. Metallic powders. Determination of effective density. Liquid immersion method ICS 77.160 H16 National Standards of People's Republic of China Replacing GB/T 5161-1985 Determination of effective density of the metal powder Liquid immersion method Issued on. 2014-06-09 2014-12-01 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. This standard replaces GB/T 5161-1985 "Determination of effective density metal powder liquid impregnation process." This standard GB/T 5161-1985 compared to the main changes are as follows. --- Standard chapters had been changed; --- Remove the "hanging battle of wits" and related content; --- Modified powder effective density and specific gravity bottle method English name; --- Proportion to the volume of the bottle, the vacuum gauge measuring range makes provision, modify the accuracy of the balance; --- Added "9 Test Report"; --- Fixed density values \u200b\u200bin Appendix B degassed distilled water. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard was drafted. Guangzhou Nonferrous Metal Research Institute, Xi'an JianKe New Technology Development Co., Ltd., Xiamen Golden Egret Special Alloy Co. Division Steel Research Institute. The main drafters of this standard. TAN Li - xin, Cai Yixiang, Wang, Wu Qishan, Li Hongyun. This standard replaces the standards previously issued as follows. --- GB/T 5161-1985. Determination of effective density of the metal powder Liquid immersion method1 ScopeThis standard specifies the method for determination of the effective density of the metal powder. This standard applies to the determination of the effective density of the metal powder.2 principle of the methodThe samples were placed in a metal powder mass measured in advance and the volume of the pycnometer, the liquid medium is added, in a vacuum environment so that the liquid Medium sufficiently impregnated into the open pores of the powder particles. According to Archimedes' principle, measure the effective volume of the powder, thereby calculating unit body Product quality, is the effective density of the powder.3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 Effective powder density effectiveparticledensity The quality of the powder divided by the effective volume of the powder. NOTE. When there are particles close the pores, the pores are closed as part of a single particle volume. 3.2 Pycnometer method pyknometry Using a pycnometer made tools to measure the effective density of the powder method. 3.3 Powder effective volume effectivevolumeofpowders After removal of the powder volume of all open pores, volume occupied by the powder particles.4 Device4.1 pycnometer Optional specific gravity of glass bottles with a capacity of 25mL or 50mL (shown in Figure 1), or any other suitable type of pycnometer. 4.2 vacuum degasser In addition to the vacuum means it can hold the gas pycnometer, and can be clearly observed in the case of the specific gravity of the sample bottle. The device should be able to vacuum Connected to the pump so that the proportion of bottles may be in the vacuum environment. As shown in Appendix A in Figure A.1. 4.3 degree of vacuum gauge It shall be possible to measure the degree of vacuum 0kPa ~ 26.66kPa (0mmHg ~ 200mmHg). ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 5161-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 5161-2025_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 5161-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 5161-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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