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GB/T 2998-2015 English PDF

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GB/T 2998-2015: Test method for bulk density and true porosity of shaped insulating refractory products
Status: Valid

GB/T 2998: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 2998-2015English169 Add to Cart 3 days [Need to translate] Test method for bulk density and true porosity of shaped insulating refractory products Valid GB/T 2998-2015
GB/T 2998-2001English279 Add to Cart 3 days [Need to translate] Shaped insulating refractory products -- Determination of bulk density and true porosity Obsolete GB/T 2998-2001
GB/T 2998-1982EnglishRFQ ASK 3 days [Need to translate] Test method for bulk density and true porosity of shaped insulating refractory products Obsolete GB/T 2998-1982

PDF similar to GB/T 2998-2015


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Basic data

Standard ID GB/T 2998-2015 (GB/T2998-2015)
Description (Translated English) Test method for bulk density and true porosity of shaped insulating refractory products
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q40
Classification of International Standard 81.08
Word Count Estimation 8,850
Date of Issue 2015-12-10
Date of Implementation 2017-01-01
Older Standard (superseded by this standard) GB/T 2998-2001
Regulation (derived from) National Standard Announcement 2015 No.38
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

GB/T 2998-2015: Test method for bulk density and true porosity of shaped insulating refractory products


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Test method for bulk density and true porosity of shaped insulating refractory products ICS 81.080 Q40 National Standards of People's Republic of China Replacing GB/T 2998-2001 Shaped insulating refractory products bulk density and true porosity experiment method (ISO 5016.1997, Shapedinsulatingrefractoryproducts-Determination ofbulkdensityandtrueporosity, MOD) Issued on. 2015-12-10 2017-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 2998-2001 "Shaped insulating refractory products bulk density and true porosity test methods", and GB/T 2998-2001 compared to the main technical changes are as follows. --- Revised 5.1; --- Revised 6.1. This standard uses redrafted law revision adopted 5016 ISO .1997 "test Shaped insulating refractory products bulk density and true porosity set". This standard and ISO 5016.1997, compared with more adjustment in the structure, listed in Appendix A of this standard and ISO 5016.1997's Chapter numbering control list. This standard and ISO 5016.1997 technical differences exist compared to the terms of these differences they have been involved in the blank space by the outer margin The vertical line (︱) were labeled, listed in Appendix B of this standard with the 5016 ISO .1997 List of technical differences and their causes. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. This standard by the National Standardization Technical Committee Refractories (SAC/TC193) and focal points. This standard is mainly drafted by. Sinosteel Luoyang Institute of Refractories Co., Ltd. Yixing Ruitai refractories, Jiangsu Yue exhibition New Materials Co., China University of Geosciences (Beijing). The main drafters. Zhang Yi, snake big money, Mao Qinghui, Zhaohui, Jiang Dongmei, Sun Yang, Sun Juchen. This standard replaces the standards previously issued as follows. --- GB/T 2998-2001. Shaped insulating refractory products bulk density and true porosity experiment method

1 Scope

This standard specifies the terms and definitions Shaped insulating refractory products for determination of bulk density and true porosity, principles, equipment, samples, test step Suddenly, the results of the calculation and the test report. This standard applies to the determination of shaped insulating refractory products bulk density and true porosity.

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/T 2997 Dense shaped refractory products bulk density, apparent porosity and true porosity test method (GB/T 2997-2015, ISO 5017.2013, MOD) GB/T 5071 Refractory true density (GB/T 5071-2013, ISO 5018. 1983, MOD) GB/T 10325, shaped refractory products acceptance sampling inspection rules (GB/T 10325-2012, ISO 5022. 1979, NEQ)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Bulk density bulkdensity ρb Quality ratio with porosity of dried material to the total volume. 3.2 The total volume bulkvolume Vb Material with a porosity of solid matter, open pores and closed pore volume sum. NOTE. The accuracy and surface roughness of the total volume of the assay. Thus affecting the accuracy of volumetric density determination. In addition, when the volume of the sample is reduced to a pole Or limit the following organizational structure (pore size and particle) when too thick, the bulk density is difficult to accurately measured. 3.3 True density truedensity ρt Quality dried material with pores of its true volume ratio. 3.4 True Volume truevolume The volume of material with a porosity of solid matter. 3.5 Open voids openpores When dipping can be liquid-filled pores, porosity press GB/T 2997 Determination.

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