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GB/T 24583.7-2019 English PDF

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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 24583.7-2019: Vanadium-nitrogen - Determination of oxygen content - Infrared absorption method
Status: Valid

GB/T 24583.7: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24583.7-2019	199	Add to Cart	3 days	Vanadium-nitrogen - Determination of oxygen content - Infrared absorption method	Valid
GB/T 24583.7-2009	279	Add to Cart	3 days	Vanadium -- Nitrogen alloy -- Determination of oxygen content -- The infrared absorption method	Obsolete

Similar standards

GB/T 24583.2 GB/T 24583.1 GB/T 24583.4 GB/T 24583.5 GB/T 24583.6 GB/T 24583.3

Basic data

Standard ID: GB/T 24583.7-2019 (GB/T24583.7-2019)
Description (Translated English): Vanadium-nitrogen - Determination of oxygen content - Infrared absorption method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H11
Classification of International Standard: 77.100
Word Count Estimation: 10,129
Date of Issue: 2019-06-04
Date of Implementation: 2020-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 24583.7-2019: Vanadium-nitrogen - Determination of oxygen content - Infrared absorption 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.
Vanadium-nitrogen--Determination of oxygen content--Infrared absorption method ICS 77.100 H11 National Standards of People's Republic of China Replace GB/T 24583.7-2009 Determination of oxygen content of vanadium-nitrogen alloy Infrared absorption method Published on.2019-06-04 2020-05-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

The analysis method of GB/T 24583 vanadium nitrogen alloy is divided into 8 parts. --- GB/T 24583.1 Determination of vanadium content of vanadium-nitrogen alloys - Ammonium sulphate titration method; --- GB/T 24583.2 Determination of nitrogen content of vanadium-nitrogen alloys - Inert gas fusion heat conduction method; --- GB/T 24583.3 Determination of nitrogen content of vanadium-nitrogen alloys - Distillation - Neutralometric titration; --- GB/T 24583.4 Determination of carbon content of vanadium-nitrogen alloys - infrared absorption method; --- GB/T 24583.5 Determination of phosphorus content of vanadium-nitrogen alloys - bismuth phosphorus molybdenum blue spectrophotometric method; --- GB/T 24583.6 Determination of sulfur content of vanadium-nitrogen alloys by infrared absorption method; --- GB/T 24583.7 Determination of oxygen content of vanadium-nitrogen alloys - infrared absorption method; --- GB/T 24583.8 Determination of silicon, manganese, phosphorus and aluminium content of vanadium-nitrogen alloys by inductively coupled plasma atomic emission spectrometry. This part is the seventh part of GB/T 24583. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 24583.7-2009 "Determination of oxygen content of vanadium nitrogen alloys by infrared absorption method". This part and Compared with GB/T 24583.7-2009, the main technical changes are as follows. --- The measurement range was changed from 0.10% to 2.00% to 0.10% to 4.00% (see Chapter 1, Chapter 1 of the.2009 edition); ---Modified "normative references" (see Chapter 2, Chapter 2 of the.2009 edition); ---Graphite crucible modified from high temperature graphite crucible to high purity graphite crucible suitable for instruments (see 4.12, 4.9 of.2009 edition); ---The carrier gas has increased argon (see 4.10, 4.7 of the.2009 edition); --- Revised the method of preparation and preparation of the sample (see Chapter 6, Chapter 6 of the.2009 edition); --- Modified the sample volume (see 7.2, 7.1 of the.2009 edition); ---Modified flux for measurement (see 7.6.1, 7.6 of.2009 edition); --- Revised "Representation of Analysis Results" (see Chapter 8, Chapter 8 of the.2009 edition); --- Replace the allowable difference with the reproducibility limit r and the reproducibility limit R of the inter-laboratory precision test data statistics (see Chapter 9, Chapter 9 of the.2009 edition). This part was proposed by the China Iron and Steel Association. This part is under the jurisdiction of the National Technical Committee for the Production of Pig Iron and Ferroalloys (SAC/TC318). This section drafted by. Pangang Group Co., Ltd., Hegang Co., Ltd. Chengde Branch, the national quality supervision and inspection of vanadium and titanium products Center, Metallurgical Industry Information Standards Institute. The main drafters of this section. Yang Xinneng, Zhong Hua, Zhou Kaishang, Yan Litang, Feng Zongping, Zhong Li, Li Lanjie, Luo Ping, Li Xiaoqing, Zhang Wei, Cheng Yong, But Juan, Wang Yijun, Yang Shaosong, Lu Chunsheng. The previous versions of the standards replaced by this section are. ---GB/T 24583.7-2009. Determination of oxygen content of vanadium-nitrogen alloy Infrared absorption method Cautions - Personnel using this section should have hands-on experience in formal laboratory work. 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 conditions set by the relevant national regulations.

1 Scope

This part of GB/T 24583 specifies the infrared absorption method for the determination of oxygen content in vanadium-nitrogen alloys. This section applies to the determination of oxygen content in vanadium-nitrogen alloys. Measuring range (mass fraction). 0.10% to 4.00%.

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 6379.1 Accuracy of measurement methods and results (accuracy and precision) Part 1. General and definition GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) Part 2. Determination of standard method of measurement The basic method of sex and reproducibility. GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values GB/T 20567 vanadium nitrogen alloy

3 Principle

The sample is placed in a graphite crucible with a helium flow, and is melted at a high temperature in a pulse heating furnace, and oxygen generates carbon monoxide and carbon dioxide gas from the carrier gas. The flow is carried into an infrared detector, and the content of oxygen can be measured according to the characteristic that carbon monoxide and carbon dioxide absorb infrared light of a specific wavelength.

4 reagents and materials

4.1 Magnesium perchlorate, anhydrous, granular. 4.2 Alkali asbestos, granular. 4.3 Glass wool. 4.4 Quartz cotton. 4.5 Tin particles, 0.2mm~0.8mm, if necessary, clean the surface with organic reagents, dry and set aside. 4.6 Tin capsule, φ (5~6) mm × 10mm. 4.7 Nickel capsule, φ6mm × (8~12)mm. 4.8 Nickel basket, φ7mm × 12mm. 4.9 Rare earth oxide copper. 4.10 Carrier gas, helium or argon, the purity is not less than 99.995%. 4.11 Power gas source, nitrogen or compressed air, with impurities (water and oil) content less than 0.5%. 4.12 Graphite crucible, suitable for high purity graphite crucibles. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 24583.7-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 24583.7-2019_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 24583.7-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 24583.7-2019_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 24583.7-2019?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 24583.7-2019 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.