GB/T 5250-2014 English PDFUS$234.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 5250-2014: Permeable sintered metal materials -- Determination of fluid permeability Status: Valid GB/T 5250: Historical versions
Basic dataStandard ID: GB/T 5250-2014 (GB/T5250-2014)Description (Translated English): Permeable sintered metal materials -- Determination of fluid permeability Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H16 Classification of International Standard: 77.160 Word Count Estimation: 12,122 Date of Issue: 12/5/2014 Date of Implementation: 5/1/2015 Older Standard (superseded by this standard): GB/T 5250-1993 Quoted Standard: ISO 2738 Adopted Standard: ISO 4022-1987, IDT Regulation (derived from): Announcement of Newly Approved National Standards 2014 No. 27 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 permeable sintered metal material (which is connected to the through pores, or interconnected) Method of measuring the fluid permeability, in the case where the test is available viscous fluid permeability and permeability coeffici GB/T 5250-2014: Permeable sintered metal materials -- Determination of fluid permeability---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.Permeable sintered metal materials - Determination of fluid permeability ICS 77.160 H16 National Standards of People's Republic of China Replacing GB/T 5250-1993 Permeable sintered metal materials Determination of fluid permeability (ISO 4022. 1987, IDT) Issued on. 2014-12-05 2015-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordAccordance with the standards GB/T 1.1-2009 given rules drafted. This standard replaces GB/T 5250-1993 "permeable sintered metal materials - Determination of fluid permeability." This standard compared with GB/T 5250-1993, the main changes are as follows. --- Order the standard sections have been adjusted. --- The "symbol and the definition of" section by the pressure units Pa to N/m2. --- Sample requirements changed. --- Change the original standard in Appendix A portion of editorial errors. Translation method used in this standard, ISO 4022 equivalent use. 1987 "permeable sintered metal materials - Determination of fluid permeability." Correspondence between the consistency of the standards of international documents and normative references of the following documents. GB/T 5163-2006 Sintered metal materials (excluding carbide) Permeable sintered metal materials density, oil content, and open Determination of rate (ISO 2738.1999, IDT). This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard is drafted by. Xi'an Pao PM limited liability company, Northwest Nonferrous Metal Research Institute of Iron and Steel Research Institute. The main drafters of this standard. Dong Feng collar, Caobai Liang, Tan Ping, Wu cited Jiang, Tang Huiping, Li Hongyun. This standard replaces the standards previously issued as follows. --- GB/T 5250-1985, GB/T 5250-1993. Permeable sintered metal materials Determination of fluid permeability1 ScopeThis standard specifies the permeable sintered metal material (which is continuous through pores or interconnected) Determination of fluid permeability party law. Test is available in the case of fluid viscosity and inertia permeability permeability coefficient expressed performed (see Appendix A). This standard does not apply to an elongated tubular sample, because the sample fluid through the tubular bore of the pressure drop and the direction of the fluid sample through the tubular wall Drop compared to the thickness direction can not be ignored (see Appendix A.5).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. Test ISO 2738 Sintered metal materials (excluding carbide) Permeable sintered metal material density, oil content and open porosity Set (Sintered metal materials, excluding hardmetals-Permeable sintered metal materials- Determinationofdensity, oilconten, andopenporosity) Principle 3 Let the test fluid of known viscosity and density through the sample and measuring the pressure drop and volume flow. Viscosity and inertia permeability coefficient and pressure drop, volume flow, density and viscosity of the fluid and the fluid passing through a specimen size of the porous metal, etc. Related parameters.4 Symbols and DefinitionsThe criteria used symbols and terms are defined in Table 1. Table 1 Term Symbol Definition Unit Permeability - under the effect of fluid pressure gradient through the porous metal capacity - Area m2 test area A perpendicular to the direction of fluid flow in the porous metal material The thickness e Dimension in the direction of fluid flow of the sample a) a sample plate for the specimen thickness; b) a tubular sample, see 6.1.2 The length L of the tubular specimen (see Figure 2) m Viscosity coefficient of permeability ψv When a viscous fluid resistance is only loss, at unit pressure gradient effect, the unit of dynamic viscosity flow Body through the porous metal material per unit area of \u200b\u200bthe volume flow, regardless of the size of the sample m2 Inertia permeability coefficients ψi When the fluid resistance is only inertial losses at unit pressure gradient effect, unit density fluid through Porous metal material volume flow per unit area, regardless of the size of the sample ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 5250-2014_English be delivered?Answer: Upon your order, we will start to translate GB/T 5250-2014_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 5250-2014_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 5250-2014_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. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 5250-2014?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 5250-2014 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. |
