GB/T 7321-2017 English PDFUS$159.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 7321-2017: Sample preparation for testing of shaped refractory products Status: Valid GB/T 7321: Historical versions
Basic dataStandard ID: GB/T 7321-2017 (GB/T7321-2017)Description (Translated English): Sample preparation for testing of shaped refractory products Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Q40 Word Count Estimation: 8,821 Date of Issue: 2017-09-07 Date of Implementation: 2018-08-01 Older Standard (superseded by this standard): GB/T 7321-2004 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of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 7321-2017: Sample preparation for testing of shaped refractory products---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.Sample preparation for testing of shaped refractory products ICS 81.080 Q40 National Standards of People's Republic of China Replacing GB/T 7321-2004 Preparation of shaped refractory products samples 2017-09-07 Posted 2018-08-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 7321-2004 "shaped refractory products sample preparation method", compared with GB/T 7321-2004, in addition to editing The main technical changes outside the sexual changes are as follows. --- Added "normative references", quoted GB/T 18930 (see Chapter 2); --- Provisions for the retention of the sample has been modified (see 5.1.14); --- Chemical analysis, refractoriness, true density, resistance to sulfuric acid and other powdery sample preparation requirements were modified (see 5.1.11); --- Increased the room temperature flexural strength, high temperature flexural strength, wear resistance, thermal conductivity, thermal expansion, slag resistance, resistance to molten iron, alkali resistance Resistance to carbon monoxide, thermal shock resistance, Young's modulus and other sample preparation requirements (see 5.13 ~ 5.1.10); --- Increasing the shaped insulation refractory products sample preparation requirements (see 5.1.2); --- Increasing shaped, special refractory products, such as cast steel brick, continuous casting brick, brick and other sample preparation requirements (see 5.2.3); --- Added for difficult sample preparation requirements, according to the requirements of both parties to negotiate sample preparation requirements (see 5.2.4). Please note that some of this document may be patentable. The issuing agencies of this document do not bear the responsibility of identifying these patents. This standard by the National Refractory Standardization Technical Committee (SAC/TC193) and focal point. This standard drafting unit. Sinosteel Luoyang Refractory Research Institute Co., Ltd., Anhui Ruitai New Materials Technology Co., Ltd.. The main drafters of this standard. Wang Xiufang, Wang Yanhui, Chen Xuefeng, Wang Xiaoli, Wang Lei, Wang Guan, Yin Chao men. This standard replaces the standards previously issued as. --- GB/T 7321-1987, GB/T 7321-2004. Preparation of shaped refractory products samples1 ScopeThis standard specifies the definition of shaped refractory products, sample preparation site to determine the principles and preparation of the sample. This standard applies to the preparation of shaped refractory products sample.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 18930 refractories terminology3 Terms and definitionsGB/T 18930 defined and the following terms and definitions apply to this document. 3.1 Sample preparation Sample preparation from the sample process. 3.2 Sample testsample Samples prepared from samples for testing.4 sample preparation site to determine the principle4.1 The sample should be taken in the weak parts of the sample quality or the key parts used. 4.2 Preparation of sample preparation site should be able to reflect the performance of the sample being tested, and has a good representation. 4.3 For complex shapes of large samples or difficult to produce test methods Standard requires a special sample of the size of the sample should be negotiated by the parties concerned Set or according to the relevant provisions of the sample preparation. 4.4 sample preparation system should avoid parts of the appearance of cracks, holes and other defects in the site.5 Sample Preparation5.1 standard, general-type refractory products 5.1.1 Dense shaped refractory products, the porosity, bulk density, compressive strength, permanent change in heating, load softening temperature and creep The sample is usually taken at the corner of the sample (cut or drilled). If the sample is smaller, the same sample can not satisfy all the preparation requirements Time, can be prepared in different samples, but to meet the following conditions. a) Normal temperature items such as apparent porosity and room temperature compressive strength test specimens should be prepared in the same sample; b) high temperature projects such as load softening temperature, pressure creep and heating of permanent change test samples should be prepared in the same sample. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 7321-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 7321-2017_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 7321-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 7321-2017_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 7321-2017?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7321-2017 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. |
