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GB/T 33862-2017 English PDF

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US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 33862-2017: Automatic (semi) Kjeldahl analyzer
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33862-2017	279	Add to Cart	3 days	Automatic (semi) Kjeldahl analyzer	Valid

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Basic data

Standard ID: GB/T 33862-2017 (GB/T33862-2017)
Description (Translated English): Automatic (semi) Kjeldahl analyzer
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N53
Classification of International Standard: 71.040.10
Word Count Estimation: 14,173
Date of Issue: 2017-07-12
Date of Implementation: 2018-02-01
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

GB/T 33862-2017: Automatic (semi) Kjeldahl analyzer

---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.
Automatic (semi) Kjeldahl analyzer ICS 71.040.10 N53 National Standards of People's Republic of China Full (semi) automatic Kjeldahl nitrogen apparatus 2017-07-12 released 2018-02-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Industrial Process Measurement Control and Automation Standardization Technical Committee (SAC/TC124). The drafting unit of this standard. Jinan Haieng Instrument Co., Ltd., Shandong Province Institute of Metrology, Jinan elite Analytical Instruments Co., Ltd. Division, Shanghai Peiou Analysis Instrument Co., Ltd., China Institute of Metrology, Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Shandong Province College of Chemistry and Chemical Engineering, Shandong Institute of Standardization, Jinan City, metrology and testing Test house. The main drafters of this standard. Wang Zhigang, Wang Yun, Sui Feng, Liu Fengxiang, Liu Yifeng, Li Zhong, Zhao Wenjian, Shi Naijie, Liu Boyang, Qin Hongwei, XU Mei-ling, ZHENG Li-qiang, YANG Yang, LU Liang. Full (semi) automatic Kjeldahl nitrogen apparatus

1 Scope

This standard specifies the terminology and definitions, requirements, test methods, inspection rules, marking, packaging, shipping and Storage. This standard is applicable to the whole (semi) automatic Kjeldahl determination of nitrogen content in samples by digestion, distillation, absorption and titration according to Kjeldahl's nitrogen method. Nitrogen instrument (hereinafter referred to as "instrument"), other methods refer to the implementation.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 191-2008 packaging and storage icon GB/T 2829-2002 Periodic inspection count Sampling procedures and tables (for inspection of process stability) GB 4793.1-2007 Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1. General requirements Analysis of laboratory water specifications and test methods GB/T 6682-2008 Environmental testing methods for analytical instruments GB/T 11606-2007 General specification for analytical instruments GB/T General technical requirements for packaging of electromechanical products GB/T 13384-2008

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Kjeldahl method A method for the determination of nitrogen content in a compound or mixture. Under the conditions of the catalyst, the sample was digested with concentrated sulfuric acid to make the nitrogen compound Are converted to ammonium salts, distilled under alkaline conditions, converting ammonium salts into ammonia, condensed with water vapor, and absorbed in excess boric acid solution to Acid standard solution titration, the consumption of acid standard solution to calculate the nitrogen content of the sample. 3.2 Digestion digestion The sample was heated at about 400 ° C with sulfuric acid and catalyst to convert the nitrogen and ammonia nitrogen in the organic compound to ammonium ions process. 3.3 Distillation With water vapor in the alkaline environment will be ammonium into ammonia, and water vapor out of the process. 3.4 Automatic Kjeldahl nitrogen instrument automaticKjeldahlanalyzer According to Kjeldahl method for nitrogen content determination, the digested samples after the automatic quantitative reagents, distillation, absorption, titration and output Test the instrument. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 33862-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 33862-2017_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 33862-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 33862-2017_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.