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GB/T 2441.6-2010 English PDF

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Q: Should I purchase the latest version GB/T 2441.6-2010?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 2441.6-2010 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$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 2441.6-2010: Determination of urea -- Part 6: Water insoluble matter content -- Weight method
Status: Valid

GB/T 2441.6: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 2441.6-2010	169	Add to Cart	3 days	Determination of urea -- Part 6: Water insoluble matter content -- Weight method	Valid
GB/T 2441.6-2001	199	Add to Cart	2 days	Determination of urea Determination of water in solution matter content Weight method	Obsolete

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GB/T 2441.8 GB/T 2441.7 GB 8569 GB/T 2441.4 GB/T 2441.5 GB/T 2441.3

Basic data

Standard ID: GB/T 2441.6-2010 (GB/T2441.6-2010)
Description (Translated English): Determination of urea -- Part 6: Water insoluble matter content -- Weight method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G20
Classification of International Standard: 65.080
Word Count Estimation: 7,775
Date of Issue: 2010-06-30
Date of Implementation: 2011-01-01
Older Standard (superseded by this standard): GB/T 2441.6-2001
Regulation (derived from): National Standard Approval Announcement 2010 No.2 (Total No.157)
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 method for the determination of the weight of the water-insoluble content of industrial urea. This section applies to the determination of water-insoluble content of urea from ammonia and carbon dioxide synthesis obtained.

GB/T 2441.6-2010: Determination of urea -- Part 6: Water insoluble matter content -- Weight 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.
Determination of urea Part 6. Water insoluble matter content Weight method ICS 65.080 G20 National Standards of People's Republic of China Replacing GB/T 2441.6-2001 Determination of urea Part 6. Water-insoluble content Gravimetric method Part 6. Waterinsolublemattercontent- Weightmethod Issued on. 2010-06-30 2011-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 2441 "Determination of urea" is divided into nine sections. --- Part 1. total nitrogen content; --- Part 2. biuret content spectrophotometry; --- Part 3. Moisture Karl Fischer method; --- Part 4. iron content - Phenanthroline spectrophotometric method; --- Part 5. alkalinity volumetric method; --- Part 6. Water-insoluble content - Gravimetric method; --- Part 7. particle size sieving; --- Part 8. sulphate content Visible turbidimetric method; --- Part 9. methylene diurea content spectrophotometry. This section GB/T 2441 Part 6. This Part replaces GB/T 2441.6-2001 "urea Determination of water-insoluble content - Gravimetric method." This part is proposed by the China Petroleum and Chemical Industry Association. This part of the National Standardization Technical Committee and soil conditioners Fertilizers (SAC/TC105) centralized. This section drafted by. National Fertilizer Quality Supervision and Inspection Center (Shanghai). The main drafters of this section. Zhang truth, room Four. This part of the standard replaces the previous editions are. --- GB/T 2447-1981, GB/T 2447-1991, GB/T 2441.6-2001. Determination of urea Part 6. Water-insoluble content Gravimetric method

1 Scope

This section GB/T 2441 specifies the method for measuring the weight of water-insoluble content of industrial urea. This section applies to the determination of urea water insoluble content from ammonia and carbon dioxide synthetically produced. Principle 2 Glass filter crucible aqueous urea solution is filtered under reduced pressure, the residue is expressed as the amount of water insoluble.

3 Instrument

3.1 usually laboratory instruments; 3.2 Glass filter crucible, No. 4 (pore diameter of 4μm ~ 16μm), volume 30mL; 3.3 Ovens; 3.4 water bath. Step 4 Analysis Do two parallel determination of sample. Laboratory samples weighing about 50g (accurate to 0.05g), the sample was dissolved in 150mL ~ 200mL of water. The solution was placed in 90 ℃ The water bath for 30min, immediately with a constant weight of No. 4 glass filter crucible hot vacuum filtration, washed with hot water residue 3 to 5 times per Times with about 15mL, remove the filter, at 105 ℃ ~ 110 ℃ constant temperature drying oven to constant weight.

5 expression analysis

Water-insoluble content w, mass fraction (%) expressed by the formula. w = m1 × 100m Where. Value m1 --- dried residue mass in grams (g); Numerical m --- sample mass, expressed in grams (g). Calculation results are shown to four decimal places, take the parallel determination results as the arithmetic mean of the measurement results.

6 allows the difference

The absolute difference between the parallel determination results is not more than 0.0050%. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 2441.6-2010_English be delivered?

Answer: Upon your order, we will start to translate GB/T 2441.6-2010_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 2441.6-2010_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 2441.6-2010_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 2441.6-2010?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 2441.6-2010 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.