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NB/T 11440-2023 English PDF

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US$319.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
NB/T 11440-2023: Estimation specifications of coal reserves in production mine
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
NB/T 11440-2023	319	Add to Cart	4 days	Estimation specifications of coal reserves in production mine	Valid

Similar standards

GB/T 17766 MT/T 1090 MT/T 1042 NB/T 11150 NB/T 11151 NB/T 11145

Basic data

Standard ID: NB/T 11440-2023 (NB/T11440-2023)
Description (Translated English): Estimation specifications of coal reserves in production mine
Sector / Industry: Energy Industry Standard (Recommended)
Classification of Chinese Standard: D10;D19
Classification of International Standard: 73.020
Word Count Estimation: 16,110
Date of Issue: 2023-12-28
Date of Implementation: 2024-06-28
Issuing agency(ies): National Energy Administration

NB/T 11440-2023: Estimation specifications of coal reserves in production mine

---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.
ICS 73.020 CCSD10/19 Energy Industry Standards of the People's Republic of China Specification for estimation of reserves of producing coal mines Released on 2023-12-28 2024-06-28 implementation The National Energy Administration released

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Estimation of basic conditions 2 5 Estimation Requirements 2 6 Estimation formula 3 Appendix A (Informative) Recovery rate index of underground mining area 5 Appendix B (Informative) Open-pit Coal Seam Recovery Rate Index 6

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document was proposed by the China Coal Industry Association. This document is under the jurisdiction of the National Coal Standardization Technical Committee (SAC/TC42). This document was drafted by. Oil and Gas Resources Strategic Research Center of the Ministry of Natural Resources, the First Exploration Bureau of China Coal Geology Bureau, China Coal Industry Industry Association Consulting Service Center, China Shenhua Energy Co., Ltd., Coal Industry Planning and Design Institute Co., Ltd., Shanmei International Energy Group Co., Ltd., Heilongjiang Longmei Mining Holding Group Co., Ltd., Guoneng Shendong Coal Group Co., Ltd., Inner Mongolia Shanghai Miao Mining Co., Ltd., Gansu Geological Survey Institute, Jiangsu Geology and Mineral Resources Design and Research Institute, Anhui Coalfield Geology Bureau. The main drafters of this document are. Miao Qi, Han Zheng, Song Hongzhu, Zhang Yinghong, Fang Xiaoxia, Gao Yongwei, Guo Junsheng, Yang Qiang, Tang Jiaxuan, Zhang Wenyi, Meng Gang, Qu Junli, Chen Min, Wang Nan, Jiang Hang, Wang Tianyuan, Chen Xue, Liu Yuchen, Wan Hui, Xiao Qinghua, Kong Qinghu, Zhu Xuechen, An Yuwei, Wang Shuyan, Quan Jutao, Qin Yunhu, Zhu Wenwei, Zhu Shifei, Wang Shuangmei. Specification for estimation of reserves of producing coal mines

1 Scope

This document specifies the basic conditions, requirements and formulas for estimating reserves of production coal mine resources. This document is applicable to the estimation of reserves of producing coal mines and can be used as a reference during the construction and mine closure stages.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 17766-2020 Classification of solid mineral resources reserves GB 50197 Design code for open-pit mines in coal industry GB 50215 Coal Industry Mine Design Code DZ/T 0399 Mine Resource Reserve Management Specification

3 Terms and definitions

The terms and definitions defined in GB/T 17766-2020 and the following apply to this document. 3.1 Mineral reserves The economically recoverable portion of the proven and/or indicated resources is the product of a pre-feasibility study, feasibility study or its equivalent. The technical and economic evaluation of the mining process takes into full account the possible ore loss and dilution, and the estimated technical feasibility of mining after reasonable use of conversion factors. feasibility and economic rationality. Note. Reserves include proven reserves and probable reserves. [Source. GB/T 17766-2020, 2.12] 3.2 Reserves estimated based on proven resources after a pre-feasibility study, feasibility study or equivalent technical and economic evaluation. [Source. GB/T 17766-2020, 2.14] 3.3 Reserves estimated based on controlled resources after a pre-feasibility study, feasibility study or equivalent technical and economic evaluation; or certain Reserves estimated based on proven resources when there is uncertainty about converting factors. [Source. GB/T 17766-2020, 2.13] 3.4 After a pre-feasibility study, feasibility study or equivalent technical and economic evaluation, based on the inferred resources in the mine geological work, Upgrade the estimated recoverable reserves with expected and confidence factors. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of NB/T 11440-2023_English be delivered?

Answer: Upon your order, we will start to translate NB/T 11440-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of NB/T 11440-2023_English with my colleagues?

Answer: Yes. The purchased PDF of NB/T 11440-2023_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+ countries

Question 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.