GB/T 14261-2010 English PDFUS$299.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 14261-2010: Methods for sampling and sample preparation of flotation zinc concentrates in bulk Status: Valid GB/T 14261: Historical versions
Basic dataStandard ID: GB/T 14261-2010 (GB/T14261-2010)Description (Translated English): Methods for sampling and sample preparation of flotation zinc concentrates in bulk Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: D42 Classification of International Standard: 77.120.01 Word Count Estimation: 13,142 Date of Issue: 2010-12-23 Date of Implementation: 2011-09-01 Older Standard (superseded by this standard): GB/T 14261-1993 Quoted Standard: GB/T 8170-2008; GB/T 14260-2010 Regulation (derived from): National Standard Approval Announcement 2010 No.10 (Total No.165) 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 the bulk flotation of zinc concentrate sampling, sample preparation and measurement procedures and methods of moisture. This standard applies to the bulk chemical composition of zinc concentrate flotation, water and other physical items detected using samples taken, preparation and determination of moisture. GB/T 14261-2010: Methods for sampling and sample preparation of flotation zinc concentrates in bulk---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. Methods for sampling and sample preparation of flotation zinc concentrates in bulk ICS 77.120.01 D42 National Standards of People's Republic of China Replacing GB/T 14261-1993 Flotation zinc concentrates in bulk sampling and sample preparation method Issued on. 2010-12-23 2011-09-01 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 is GB/T 14261-1993 "flotation zinc concentrates in bulk sampling and sample preparation method" as amended. And GB/T 14261-1993 Compared to the standard main changes are as follows. --- The inspection volume, type and quality variation sampling, sample preparation and measurement precision of the total, respectively, has been modified; --- Increasing the sampling precision; --- The system is divided into quality sampling system sampling time and sampling systems, and make provisions, respectively; --- Van sampling method increases the sampling test batch increase and car delivery time; --- Increasing the sampling methods bagged concentrate; --- Moisture measurement, the accuracy of the balance has been modified; make it clear that the time for drying the water sample. The standard proposed by China Nonferrous Metals Industry Association. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard is drafted by. MCC Huludao Nonferrous Metals Group Co., Ltd., China Nonferrous Metals Industry Quality Standards and Metrology Institute The study. Participated in the drafting of this standard. Shenzhen Lingnan Nonferrous Metals Co., Ltd. Shaoguan smelter Zinc Industry Co., Ltd. Shaanxi Dongling The company, Henan Yuguang Zinc Industry Co., Ltd. Zhuzhou Smelter Group Co., Ltd., Nantong CIQ. The main drafters of this standard. Li Jun, Yong high school, Zhao Junfeng, cold Greek science, Mengqing Wu, Li printed map, Zhou Wei, Chen Qinglin, Li Heqing, Zhu Dongping, Chen Weidong, Yan Yuan, Jin Hou. This standard replaces the standards previously issued as follows. --- GB/T 14261-1993. Flotation zinc concentrates in bulk sampling and sample preparation method1 ScopeThis standard specifies the sampling and sample preparation procedures and methods for measuring the moisture content of bulk flotation of zinc concentrate. This standard applies to bulk flotation of zinc concentrate chemical composition, moisture and other physical item detection sample taken with the preparation and moisture Determination.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. GB/T 8170-2008 revised value represents about rules and limit values \u200b\u200band judgment GB/T 14260-2010 heavy nonferrous metals flotation concentrates in bulk sampling and sample preparation General3 Terms and DefinitionsThis standard adopts GB/T 14260 terminology and definitions.4 Requirements4.1 Sampling, sample preparation and total precision measurement (βSPM) and sampling precision (βS), shown in Table 1. Table 1 test different batches of zinc concentrate to be taken as a minimum number of samples parts Batch tests N/t Quality variation type small Medium Large σW≤0.5 0.5 < σW≤1.0 σW> 1.0 βS / βSPM / ≤70 6 18 28 0.47 0.50 > 70 ~ 500,164,874 0.28 0.32 The first method specified in 4.2 sampling method is no system error method. 4.3 special cases, test batches agreed by both parties. To 4.4 percent zinc content as quality characteristics of zinc concentrate. 4.5 according to the method for sampling and sample preparation, and, if required for checking the precision test. 4.6 As a result of constraints, may be appropriate to change the sampling method, but it must be no significant difference after checking test confirmed before use. 4.7 If the delivery of quality ore is uneven or mixed foreign inclusions, negotiated by both parties. 4.8 composition sample should be kept for three months (International Trade custody for six months), to prepare for verification. 4.9 Water samples should be placed in a dry, clean, closed containers to prevent moisture changes. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 14261-2010_English be delivered?Answer: Upon your order, we will start to translate GB/T 14261-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 14261-2010?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14261-2010 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. |
