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GB/T 14949.8-2018 English PDF

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Q: Should I purchase the latest version GB/T 14949.8-2018?

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 14949.8-2018: Manganese ores -- Determination of hygroscopic moisture content -- Gravimetric method
Status: Valid

GB/T 14949.8: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 14949.8-2018	199	Add to Cart	3 days	Manganese ores -- Determination of hygroscopic moisture content -- Gravimetric method	Valid
GB/T 14949.8-1994	279	Add to Cart	3 days	Manganese ores. Determination of hygroscopic moisture content in analytical samples	Obsolete

Similar standards

GB/T 14949.11 GB/T 1511 GB/T 24197 GB/T 14949.7 GB/T 14949.2 GB/T 14949.5

Basic data

Standard ID: GB/T 14949.8-2018 (GB/T14949.8-2018)
Description (Translated English): Manganese ores -- Determination of hygroscopic moisture content -- Gravimetric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D32
Classification of International Standard: 73.060.20
Word Count Estimation: 10,164
Date of Issue: 2018-09-17
Date of Implementation: 2019-06-01
Older Standard (superseded by this standard): GB/T 14949.8-1994
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 14949.8-2018: Manganese ores -- Determination of hygroscopic moisture content -- Gravimetric method

---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.
(Manganese ore - Determination of wet water content - Gravimetric method) ICS 73.060.20 D32 National Standards of People's Republic of China Replace GB/T 14949.8-1994 Determination of wet ore water content of manganese ore Gravimetric method (ISO 310.1992, Manganeseoresandconcentrates-Determinationof Method, MOD) 2018-09-17 released.2019-06-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 14949 "Manganese ore chemical analysis method" is divided into 12 parts. --- GB/T 14949.1 manganese ore chemical analysis method for the determination of chromium content; ---GB/T 14949.2 manganese ore chemical analysis method for the determination of nickel content; --- GB/T 14949.3 manganese ore chemical analysis method for the determination of cerium oxide content; ---GB/T 14949.4 Determination of vanadium content by chemical analysis method of manganese ore; --- GB/T 14949.5 manganese ore chemical analysis method for the determination of titanium content; --- GB/T 14949.6 Determination of the amount of copper, lead and zinc in the chemical analysis of manganese ores; ---GB/T 14949.7 Determination of the amount of sodium and potassium in the chemical analysis method of manganese ore; ---GB/T 14949.8 Determination of the wet water content of manganese ore; ---GB/T 14949.9 Determination of sulfur content in chemical analysis of manganese ores; --- GB/T 14949.10 Manganese ore chemical analysis method Determination of cobalt content; --- GB/T 14949.11 manganese ore chemical analysis method for the determination of carbon dioxide; ---GB/T 14949.12 Determination of the combined water content of the chemical analysis method of manganese ore. This part is the eighth part of GB/T 14949. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 14949.8-1994 "Determination of wet water storage capacity of manganese ore chemical analysis method". This part and GB/T 14949.8- Compared with.1994, the main technical changes are as follows. --- Modify the standard name from "Determination of the amount of wet water stored in the chemical analysis method of manganese ore" to "Determination of the amount of wet ore in manganese ore Weight method" (see cover, cover of the.1994 edition); --- Revised the scope of the description and content, added "the results of the results for the analysis of the analysis results of wet water sample components" (see Chapter 1, Chapter 1 of the.1994 edition); --- Increased the content of normative references (see Chapter 2); ---Modified the description and content of the principle (see Chapter 3, Chapter 2 of the.1994 edition); --- Added "analytical balance" [see Chapter 4 a)], "Dryer" [see Chapter 4 d)]; --- Increased requirements for sampling and sample preparation (see Chapter 5); --- Added "preparation for weighing bottles" (see 6.1); --- Revised the requirements for sample weight (see 6.2, 5.1 of the.1994 edition); --- Increased result calculation value revision requirements (see Chapter 7); --- Revised the requirement for tolerance (see Chapter 8, Chapter 7 of the.1994 edition); --- Added requirements for test reports (see Chapter 9). This section uses the redrafting method to modify the use of ISO 310.1992 "manganese ore and manganese concentrate analysis samples in the determination of wet water content Weight method. This section is structurally modified compared to ISO 310.1992, which is listed in Appendix A and ISO 310.1992. Check the list. There are technical differences between this part and ISO 310.1992. The technical aspects of this part and ISO 310.1992 are given in Appendix B. A list of differences and their causes. This section also made the following editorial changes. --- In line with the existing standard series, the standard name was changed to "Measurement Weight Method for Manganese Ore Wet Water Storage". This part was proposed by the China Iron and Steel Association. This part is under the jurisdiction of the National Iron and Iron Alloy Standardization Technical Committee (SAC/TC318). This section drafted by. Shanghai Entry-Exit Inspection and Quarantine Bureau Industrial Products and Raw Materials Testing Technology Center, China University of Geosciences (Wuhan), Metallurgy Gold Industry Information Standards Institute. The main drafters of this section. Zhang Linlin, Li Chen, Liu Wei, Yan Detian, Gao Qiang, Lu Chunsheng. The previous versions of the standards replaced by this section are. ---GB/T 1505-1979; ---GB/T 14949.8-1994. Determination of wet ore water content of manganese ore Gravimetric method Warning. This section may be related to the safety of hazardous materials, hazardous operations and equipment. This section does not point out all possible security questions. question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the relevant national regulations.

1 Scope

This part of GB/T 14949 specifies the method for determining the amount of wet water by gravimetric method. This section applies to the determination of the amount of wet water in manganese ore samples, the measurement range (mass fraction). 0.10% ~ 10.00%, the results are used for Correction of the analysis results of the wet sample components.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values ISO 4296-1 Manganese ore sampling Part 1. Sample sampling (Manganeseores-Sampling-Part 1. Increment Sampling) ISO 4296-2 Manganese ore sampling - Part 2. Preparation of samples (Manganeseores-Sampling-Part 2. Prepa- Rationofsamples)

3 Principle

The sample pre-dried and equilibrated in air is placed in a drying oven at 105 ° C ~ 110 ° C to dry to a constant weight, according to the sample before and after drying The mass change calculates the amount of wet water.

4 instruments and reagents

In addition to general laboratory equipment, it also includes. a) Analyze the balance, the sensitivity is 0.1mg; b) flat weighing bottle, 30mm in diameter, with a tight grinding cap; c) the oven can maintain the temperature in the range of 105 ° C ~ 110 ° C; d) Dryer.

5 sampling and sample preparation

Laboratory samples for analysis shall be sampled and sampled in accordance with ISO 4296-1 and ISO 4296-2, and the particle size shall be less than 100 μm. And air dried under laboratory conditions. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 14949.8-2018_English be delivered?

Answer: Upon your order, we will start to translate GB/T 14949.8-2018_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 14949.8-2018_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 14949.8-2018_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.

Question 5: Should I purchase the latest version GB/T 14949.8-2018?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14949.8-2018 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.