GB/T 5988-2022 PDF English
US$235.00 · In stock · Download in 9 secondsGB/T 5988-2022: Refractory products - Determination of permanent change in dimensions on heating Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 5988: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 5988-2022 | English | 235 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Refractory products - Determination of permanent change in dimensions on heating
| Valid |
| GB/T 5988-2007 | English | 130 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Refractory products -- Determination of permanent change in dimension on heating
| Obsolete |
| GB/T 5988-2004 | English | 319 |
Add to Cart
|
3 days
|
Dense shaped refractory products -- Determination of permanent change in dimension on heating
| Obsolete |
| GB/T 5988-1986 | English | 279 |
Add to Cart
|
3 days
|
Dense shaped refractory products--Test method of linear changes on reheating
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 5988-2022
GB/T 5988-2022: Refractory products - Determination of permanent change in dimensions on heating---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT5988-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 81.080
CCS Q 40
Replacing GB/T 5988-2007
Refractory Products – Determination of Permanent Change
in Dimensions on Heating
(ISO 2478.1987, Dense Shaped Refractory Products – Determination of
Permanent Change in Dimensions on Heating; ISO 2477.2005, Shaped
Insulating Refractory Products – Determination of Permanent Change in
Dimensions on Heating, MOD)
Issued on. MARCH 9, 2022
Implemented on. OCTOBER 1, 2022
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative References... 5
3 Terms and Definitions... 5
4 Principle... 6
5 Equipment... 6
6 Specimens... 8
7 Test Steps... 8
8 Calculation of Results... 12
9 Allowable Error... 13
10 Test Report... 14
Appendix A (Informative) Comparison of Structure No. between this Document and
ISO 2478.1987 & ISO 2477.2005... 15
Appendix B (Informative) Technical Differences and Their Causes between this
Document and ISO 2478.1987 & ISO 2477.2005... 17
Foreword
This document was drafted in accordance with the rules in GB/T 1.1-2020 Directives for
Standardization - Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This Document replaced GB/T 5988-2007 Refractory Products - Determination of Permanent
Change in Dimension on Heating. Compared with GB/T 5988-2007, the major technical
changes of this Document are as follows besides the structural adjustments and editorial
modifications.
a) Change the scope (see Clause 1 of this Edition; Clause 1 of the 2007 Edition);
b) Change the name of the test furnace; re-edit the contents of 5.1 to 5.3 of the 2007 Edition;
and add the provisions for the test furnace and thermocouple; (see 5.1 of this Edition; 5.1
to 5.3 of the 2007 Edition);
c) Change the description of the length measuring instrument (see 5.2.1 of this Edition; 5.4.1
of the 2007 Edition);
d) Change the description of sampling (see 6.1 of this Edition; 6.1 of the 2007 Edition);
e) Change the height of the specimen; and add the provisions for the selection of the test
method (see 6.2.1 of this Edition; 6.2.1 of the 2007 Edition);
f) Delete the preparation of the monolithic refractory specimen (see 6.2.3 of the 2007
Edition);
g) Change the names of 7.2.3 and 7.4; and re-edit the contents of 7.4 to 7.8 of the 2007
Edition; delete the gas sampling; and no longer measure the oxygen content in the gas
furnace (see Clause 7 of this Edition; Clause 7 of the 2007 Edition);
h) Change Formula (3) (see 8.1 of this Edition; 8.1 of the 2007 Edition);
i) Change the number of digits retained in the test results (see 8.3 of this Edition; 8.3 of the
2007 Edition);
j) Increase the allowable error (see Clause 9 of this Edition);
k) Change the test report (see Clause 10 of this Edition; Clause 9 of the 2007 Edition)
This Document is modified to adopt ISO 2478.1987 Dense Shaped Refractory Products;
Determination of Permanent Change in Dimensions on Heating and ISO 2477.2005 Shaped
Insulating Refractory Products – Determination of Permanent Change in Dimension on
Heating.
Compared with ISO 2478.1987 and ISO 2477.2005, this Document has many structural
adjustments. The comparison table of structural number changes between the two documents
is shown in Appendix A.
Compared with ISO 2478.1987 and ISO 2477.2005, this Document has many technical
differences. The outer margins of the involved clauses are marked with a vertical single line (|).
The technical differences and their reasons are shown in Appendix B.
The following editorial changes have been made to this Document.
--- In order to coordinate with the existing standards, the standard name is changed to
Refractory Products – Determination of Permanent Change in Dimensions on Heating.
Please note some contents of this Document may involve patents. The issuing agency of this
Document shall not assume the responsibility to identify these patents.
This Document was proposed by and shall be under the jurisdiction of National Technical
Committee on Refractory Products of Standardization Administration of China (SAC/TC 193).
Drafting organizations of this Document. Sinosteel Luoyang Institute of Refractories Research
Co., Ltd.; Yixing Product Quality Supervision and Inspection Institute; Zhejiang Mingde New
Materials Technology Co., Ltd.; Luoyang Lier Functional Materials Co., Ltd.; Shanxi Yu
County Xixiaoping Refractories Co., Ltd.; Zhejiang Hongfeng Burden Co., Ltd.; Haicheng Lier
Magnesia Materials Co., Ltd.; Zhengzhou Ruitai Refractory Materials Technology Co., Ltd.;
and Northeastern University.
Drafting organizations of this Document. Zhang Yi, Yang Jinsong, Yuan Xiaoping, Zhu
Huiliang, Zhao Wei, Yan Peizhong, Qin Yinjun, Liu Lun, Yan Hao, Li Wei, Ma Beiyue, Tang
Yufei, Gao Jianrong, Yang Wei, Liu Lei, Zhou Yong, Zhao Xianhua, Li Yuanjin, Liu Chaoyang,
and Cao Haijie.
The historical editions replaced by this Standard are as follows.
--- GB/T 5988-1986 was first-time published in 1986;
--- It was first-time revised in 2004;
--- When it was second-time revised in 2007, it incorporated into the contents of GB/T
3997.1-1998 Shaped Insulating Refractory Products - Determination of Permanent
Change in Dimension on Heating (the historical editions replaced by 3997.1-1998
include GB/T 3997.1-1983);
--- It was the third-time revised hereby.
Refractory Products – Determination of
Permanent Change in Dimensions on Heating
1 Scope
This Document specifies the principle, equipment, specimens, test steps, result calculation and
test report of the test method for permanent change in dimensions on heating of dense shaped
refractory products and shaped insulating refractory products.
2 Normative References
The provisions in following documents become the essential provisions of this Document
through reference in this Document. For the dated documents, only the versions with the dates
indicated are applicable to this Document; for the undated documents, only the latest version
(including all the amendments) is applicable to this Document.
3 Terms and Definitions
For the purposes of this Document, the terms and definitions given in GB/T 18930 apply.
4 Principle
Place the rectangular or cylindrical specimen with measured length or volume in the test furnace;
heat it to the test temperature at the specified heating rate; and keep it for a certain time. After
cooling to room temperature, measure its length or volume again; and calculate its heating
permanent change rate in dimensions on heating or change rate in volume.
5 Equipment
When used in conjunction with thermocouples, it can continuously control, record and display
the temperature in the furnace.
The measuring instrument comes with a measuring calibration block with a diameter of 50mm
and a height of 60mm. The nominal size accuracy of the calibration block is 0.01mm; and the
material is stainless steel or high-hardness steel that has been quenched and rust-proofed.
6 Specimens
The preparation of the specimen is carried out in accordance with GB/T 7321.Generally, one
specimen is prepared from each sample; and the number of specimens cut from each sample
shall be the same.
One specimen is made from each sample; and more than one can be made if the sample size
allows. Specimen size. 100mm×114mm×65mm or 100mm×114mm×75mm.
7 Test Steps
Move the sample carrier with the specimen on the base and measure the length at 4 positions
on the top surface of the specimen, accurate to 0.01mm. For rectangular specimens, the 4
positions are on the diagonal line of the top surface of the specimen, 20mm~25mm away from
each corner.
After stopping heating, the furnace is cooled naturally to room temperature; and the specimen
is cooled with the furnace.
8 Calculation of Results
The test results of shaped thermal insulation products shall be rounded off to 1 digit after
the decimal point according to GB/T 8170; and the test results of dense shaped products shall
be rounded off to 2 digits after the decimal point according to GB/T 8170.
9 Allowable Error
For dense shaped products, the absolute value of the reinspection error of the same sample in
the same laboratory shall not exceed 0.10%; while the absolute value of the reinspection error
of the same sample in different laboratories shall not exceed 0.20%.
10 Test Report
The test report shall include the following.
Appendix A
(Informative)
Comparison of Structure No. between this Document and
ISO 2478.1987 & ISO 2477.2005
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 5988-2022 be delivered?Answer: The full copy PDF of English version of GB/T 5988-2022 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 5988-2022_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 5988-2022_English will be deemed to be sold to your employer/organization who actually paid 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. www.ChineseStandard.us -- GB/T 5988-2022 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. Question 5: Should I purchase the latest version GB/T 5988-2022?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 5988-2022 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. How to buy and download a true PDF of English version of GB/T 5988-2022?A step-by-step guide to download PDF of GB/T 5988-2022_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 5988-2022".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|