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GB/T 4325.25-2013 English PDF

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Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4325.25-2013 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.

US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 4325.25-2013: Methods for chemical analysis of molybdenum -- Part 25: Determination of hydrogen content -- Inert gas fusion infrared absorption method/thermal conductivity method
Status: Valid

GB/T 4325.25: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4325.25-2013	139	Add to Cart	3 days	Methods for chemical analysis of molybdenum -- Part 25: Determination of hydrogen content -- Inert gas fusion infrared absorption method/thermal conductivity method	Valid
GB/T 4325.25-1984	199	Add to Cart	2 days	Methods for chemical analysis of molybdenum--The inert gas fusion-coulometric titration method for the determination of oxygen content	Obsolete

Similar standards

GB/T 4325.7 GB/T 4325.8 GB/T 4325.6 GB/T 4325.18 GB/T 4325.19 GB/T 4325.17

Basic data

Standard ID: GB/T 4325.25-2013 (GB/T4325.25-2013)
Description (Translated English): Methods for chemical analysis of molybdenum -- Part 25: Determination of hydrogen content -- Inert gas fusion infrared absorption method/thermal conductivity method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H63
Classification of International Standard: 77.120.99
Word Count Estimation: 6,690
Regulation (derived from): National Standards Bulletin 2013 No. 6
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 amount of hydrogen molybdenum determination. This section applies to molybdenum powder, molybdenum, molybdenum products in the determination of the amount of hydrogen. Measuring range: 0. 0010% ~ 0. 0250%.

GB/T 4325.25-2013: Methods for chemical analysis of molybdenum -- Part 25: Determination of hydrogen content -- Inert gas fusion infrared absorption method/thermal conductivity 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.
Methods for chemical analysis of molybdenum Part 25... Determination of hydrogen content Inert gas fusion infrared absorption method/thermal conductivity method ICS 77.120.99 H63 National Standards of People's Republic of China Chemical analysis of molybdenum Part 25. Determination of the amount of hydrogen Inert gas fusion infrared absorption method/thermal conductivity method Part 25. Determinationofhydrogencontent- Issued on. 2013-05-09 2014-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 4325 "chemical analysis of molybdenum" is divided into 26 parts. --- Part 1. Determination of lead content - Graphite furnace atomic absorption spectrometry; --- Part 2. Determination of cadmium content by flame atomic absorption spectrometry; --- Part 3. Determination of bismuth content - atomic fluorescence spectrometry; --- Part 4. Determination of tin content by atomic fluorescence spectrometry; --- Part 5. Determination of antimony content - Atomic Fluorescence Spectrometry; --- Part 6. Determination of arsenic content by atomic fluorescence spectrometry; --- Part 7. Determination of the amount of iron phenanthroline spectrophotometry and inductively coupled plasma atomic emission spectrometry; --- Part 8. Determination of cobalt content of cobalt reagents spectrophotometry and flame atomic absorption spectrometry; --- Part 9. Determination of the amount of nickel dimethylglyoxime spectrophotometric method and the flame atomic absorption spectrometry; --- Part 10. Determination of copper content - Flame atomic absorption spectrometry; --- Part 11. Determination of aluminum content of chromium azure S spectrophotometry and inductively coupled plasma atomic emission spectrometry; --- Part 12. silicon content - Inductively coupled plasma atomic emission spectrometry; --- Part 13. Determination of calcium content by flame atomic absorption spectrometry; --- Part 14. Determination of magnesium content - Flame atomic absorption spectrometry; --- Part 15. Determination of sodium content by flame atomic absorption spectrometry; --- Part 16. Determination of potassium content by flame atomic absorption spectrometry; --- Part 17. Determination of titanium content of two methane antipyrine spectrophotometry and inductively coupled plasma atomic emission spectrometry; --- Part 18. Determination of the amount of vanadium tantalum reagent spectrophotometry and inductively coupled plasma atomic emission spectrometry; --- Part 19. Determination of chromium content of diphenyl carbon acid dihydrazide spectrophotometry; --- Part 20. Determination of manganese content by flame atomic absorption spectrometry; --- Part 21. Determination of the amount of carbon and sulfur content of the high-frequency combustion infrared absorption method; --- Part 22. Determination of phosphorus content - Molybdenum blue spectrophotometric method; --- Part 23. Determination of the oxygen and nitrogen inert gas fusion infrared absorption method - thermal conductivity method; --- Part 24. Determination of tungsten content - Inductively coupled plasma atomic emission spectrometry; --- Part 25. Determination of the amount of hydrogen in the inert gas fusion infrared absorption method/thermal conductivity method; --- Part 26. aluminum, magnesium, calcium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, arsenic, cadmium, tin, antimony, tungsten, lead and bismuth content - Inductively coupled Co-Plasma Mass Spectrometry. This section GB/T Section 25 of the 4325. This section drafted in accordance with GB/T 1.1-2009 given rules. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is drafted. Jinduicheng Molybdenum Industry Co., Ltd., Western Materials Co., Ltd., Northwest Nonferrous Metal Research Institute. The main drafters of this section. Xie Mingming, Wang Feng, Ren Yi Qi, Yang Hongzhong, Wang Guoliang, Zhao Fei, Wang Hui. Chemical analysis of molybdenum Part 25. Determination of the amount of hydrogen Inert gas fusion infrared absorption method/thermal conductivity method

1 Scope

GB/T 4325 provisions of this part of the determination of molybdenum in the amount of hydrogen. This section applies to powder, molybdenum, molybdenum determination of the amount of hydrogen molybdenum products. Measurement range. 0.0010% to 0.0250%.

2 Method summary

A sample with a co-solvent is added to a graphite crucible in an inert gas (helium) under the protection of the melt, in a sample of hydrogen to form hydrogen precipitation, hydrogen Is oxidized to water by infrared detection cell or TCD hydrogen content, hydrogen content calculated computing system based on the quality of the sample, the percentage of results FIG.

3 Reagents and materials

3.1 acetone, AR. 3.2 graphite crucible. 3.3 Nickel capsule (wH≤0.00005%). Helium 3.4, the volume fraction of not less than 99.995%. 3.5 Standard substance/Standard sample. the hydrogen content of the material to be tested with similar congeners.

4 Instrument

4.1 Inert gas fusion - thermal conductivity/infrared detector hydrogen analyzer. 4.2 Analytical balance, dividing the value of 0.1mg.

5 Sample

5.1 specimens should be sealed. 5.2 powdery direct sampling, mass of about 0.5g. 5.3 molybdenum products such as molybdenum products, core samples from the sampling unit, (3.1) and washed with acetone, dried, mass of about 0.5g. 5.4 sample can not be contaminated during operation, with special forceps. Step 6 Analysis 6.1 Warm up To fully preheated before instrumental analysis, so that the indicators of the instrument reaches the set value. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 4325.25-2013_English be delivered?

Answer: Upon your order, we will start to translate GB/T 4325.25-2013_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 4325.25-2013_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 4325.25-2013_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 4325.25-2013?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4325.25-2013 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.