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F-C20-003
TECHNICAL SPECIFICATION No. 4
PRILLED UREA
Urea is a mono-constituent organic substance. It contains impurities like water, biuret and
conditioning agents.
1. Identification and classification
Name: Urea
Chemical formula: NH2-CO-NH2
ECHA Registration Number: 01-2119463277-33-0059
CAS Number: 57-13-6
EC Number: 200-315-5
Molecular mass: 60.0553
According to Directive 67/548/EEC and to Regulation (EC) 1272/2008, urea is not classified as
a dangerous substance.
No.
2. Technical quality conditions
Characteristics
Standard/Testing method
Technical requirements
Type A
Type B
White or
White or
yellowishyellowishwhite
white
granules
granules
46
46
1.
Appearance
Visual
2.
Total Nitrogen, %
SR EN 15478:2009
3.
Biuret, % max.
1.2
1.2
4.
5.
Water content, % max.
Granulometry:
1- 4 mm, % min.
SR EN 15479:2009
STAS 8495-89
SR EN 13466-1:2002
0.5
0.5
SR ISO 2591-1:1998
90
90
0.02
0.02
Treated
-
Treated
5.5
6.
Alkalinity, NH3 % max.
7.
8.
Formalin
Borden test, pH units, min.
SR ISO 1593:1999
STAS 5698-87
Spectrophotometric method
Electrochemical
determination
Observations:
1) Uses: Urea type A - chemical fertilizer
type B – industrial use
2) At the client’s request, additional tests can be performed or other requirements may be stablished.
Date of issue: 23.10.2014
Version: 11
Page: 1 / 3
The results from the sections 2, 6 and 8 (Type B) are guaranteed by the producer and the
determinations are performed upon request.
•
•
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•
•
•
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3. Testing methods
Appearance: visual
Total Nitrogen: according to SR EN 15478:2009. The Nitrogen from the urea is mineralised in
the presence of concentrated sulphuric acid; ammonia is distilled in an alkaline environment, and
it is absorbed in an excess solution of sulphuric acid; the excess of sulphuric acid is titrated.
Biuret: according to STAS 8495-89 and SR EN 15479:2009. A red-purple complex is formed
between biuret and the divalent copper ion, in an alkaline environment, in the presence of a
potassium sodium tartrate solution; the coloured complex is photometrically measured at a
wavelength of 546 nm.
Water content determination: according to SR EN 13466-1:2002, Karl–Fischer method. It is a
testing method for specific determination of the water contained in fertilizers, through titration
with Karl–Fischer reagent, using methanol as a medium for water extraction.
Granulometry (determination of particle size): according to STAS 8495-89, section 4.6,
mechanical sieving on sieves with mesh size of 1 and 4 mm and to SR ISO 2591-1:1998.
Alkalinity: is determined according to SR ISO 1593:1999 (standard cancelled) and
STAS 5698-87 section 4.8., by dissolving 50 g of urea in 200 cm3 of water and 0.01N HCl
titration in the presence of a mixed indicator solution (Methyl Red–Methylene Blue).
Formalin: the determination is based on compounding the formalin in a strong acid environment
with chromotropic acid and measuring the absorbency of the pink-purple compound at a
wavelength of 570 nm.
Borden test: 16 g of urea is dissolved in 80 ml distilled water, after 10 min of stirring, it is added
2 ml formaldehyde solution 20%, after about 10 min it is read at pH-meter at t=20°C.
4. Quality control
Quality control is performed on batches of approximately 300 tons.
Each delivery is accompanied by the Conformity Statement.
At the client’s request, the product is accompanied by a Test Report, and, when expressly requested,
by an estimative calculation of the extended incertitude of the test result.
5. Packaging
The product is packed in 50 kg and 500 kg polyethylene bags or double bags (polyethylene and
polypropylene). It may also be delivered in bulk (Type B). Polyethylene bags are closed by welding,
and the polypropylene bags are closed by sewing.
The marking on the bags is in accordance with the current regulations.
• Name of the product: Prilled Urea
• Declared content for each nutrient: NITROGEN N 46%, expressed as mass percentages in the
form of a whole number
• The nutrients have to be declared both in words and chemical symbols, e.g. Nitrogen (N)
• The maximum biuret content is mandatory to be declared as: Biuret max. 1.2%
• Net weight of the fertilizer
• Name and brand of the producer
• Name, commercial name or brand and address of the person responsible for trading the product,
with headquarters in Romania or in the European Community. The marking on the bags and the
Date of issue: 23.10.2014
Version: 11
Page: 2 / 3
accompanying documents have to be provided in at least one official EU member states
language.
Packed chemical products are identified through the information written on labels or on the package.
The identification data for the products delivered in bulk or in packages that exceed 100 kg is
mentioned on the accompanying documents.
6. Tolerances
Producers are not allowed to systematically use the advantage of tolerances. According to
Regulation (EC) No. 2003/2003, Annex II, the tolerances are negative values in mass percentage.
Nitrogen in urea
- 0.4%
7. Handling, storage, transportation, guarantees
Storage and transportation is performed in piles of maximum 20 rows for the 50 kg bags and in 3
rows for the 500 kg bags, in closed, clean and dry storehouses and the means of transport have to be
clean, dry and with waterproof covers, free of sharp objects that might deteriorate the bags (by
cutting or ripping). The goods will be protected against direct exposure to sunrays. Both
transportation and storage require temperatures between -10 and +30°C.
The product can also be transported in bulk, in open wagons, covered with a waterproof cover, or in
wagons with opening metallic roofs or special road tankers.
For the transport, the product is not classified under ADR, RID or IMDG.
Term of validity:
• 12 months from the date of bagging for the product packed in bags
• 12 months for the bulk product from the date mentioned in the
accompanying documents,
in compliance with specified transport and storage conditions.
8. Security measures
The product is non-flammable and non-explosive.
The use of individual protection equipment is recommended: protective gloves and, when necessary,
dust mask.
In order to avoid the effects on the skin, washing is mandatory after handling the product.
In case of incidents/accidents, immediately notify the local Inspectorate for Emergency Situations.
Further details in the product’s Safety Data Sheet.
Urea Plant Manager
Eng.Cristian HERBETH
Date of issue: 23.10.2014
Quality Manager
Eng. Camelia IANCULESCU
Version: 11
Technical Manager
Eng. Aurel BOTEZAN
Page: 3 / 3
F-C20-006
TECHNICAL SPECIFICATION No. 9
PRILLED TECHNICAL UREA
Urea is an organic mono-constituent substance. It contains impurities like biuret.
1. Identification and classification
Name: Urea
Chemical formula: NH2-CO-NH2
ECHA Registration Number: 01-2119463277-33-0059
CAS Number: 57-13-6
EC Number: 200-315-5
Molecular mass: 60.0553
According to Directive 67/548/EEC and to Regulation (EC) 1272/2008, urea is not classified as
a dangerous substance.
No.
2. Technical quality conditions
Characteristics
1.
Appearance
Standard/Testing
method
Visual
2.
3.
Total Nitrogen, %
Biuret, % max.
SR EN 15478:2009
SR EN 15479:2009
4.
5.
Water content, % max.
Substances insoluble in water,
% max.
Iron, % max.
Alkalinity, NH3 % max.
SR EN 13466-1:2002
STAS 5698-87
0.5
0.02
0.5
0.02
SR ISO/R 1595/1999
SR ISO 1593:1999
STAS 5698-87
0.0004
0.02
0.0004
0.02
SR ISO 2591-1:1998
STAS 8495-89
Spectrophotometric
method
Visual quality
90
5
not present
90
5
not present
not present
not present
6.
7.
8.
9.
Granulometry:
- 1– 4 mm, % min.
- under 1, % max.
Formaldehyde
10.
Anti-caking agent
Technical requirements
Type A
Type B
White or yellowish-white
granules
46
46
1.0
1.2
Observations: at the client’s request, additional tests can be performed or other requirements may
be established.
The results from the sections 3, 6, 7, 8, 10 are guaranteed by the producer and the
determinations are performed upon request.
Date of issue: 30.09.2014
Version: 11
Page: 1 / 3
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•
•
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3. Testing methods
Appearance, colour: visual
Total Nitrogen: according to SR EN 15478:2009. The Nitrogen from the urea is mineralised in
the presence of concentrated sulphuric acid; ammonia is distilled in an alkaline environment, and
it is absorbed in an excess solution of sulphuric acid; the excess of sulphuric acid is titrated.
Biuret: according to SR EN 15479:2009. A red-purple complex is formed between biuret and the
divalent copper ion, in an alkaline environment, in the presence of a potassium sodium tartrate
solution; the coloured complex is photometrically measured at a wavelength of 546 nm.
Content of substances insoluble in water: gravimetrically determined according to STAS 569887, section 4.7. 50 g of urea are dissolved in 200 cm3 of water, filtered through a G4 filter
crucible and then brought to constant mass at 105°C ± 20°C.
Water content determination: according to SR EN 13466-1:2002, Karl–Fischer method. It is a
testing method for specific determination of the water contained in fertilizers, through titration
with Karl–Fischer reagent, using methanol as a medium for water extraction.
Iron: according to SR ISO/R 1595/1999 (standard cancelled), iron is determined through
complexation with 2,2 dipyridyl at 4.5-6 pH; beforehand, iron is reduced with hydroxylamine
chlorhydrate.
The coloured complex is photometrically measured at a wavelength of 522 nm.
Alkalinity: is determined according to SR ISO 1593:1999 (standard cancelled) and STAS
5698-87 section 4.8, by dissolving 50 g of urea in 200 cm3 of water and 0.01N HCl titration in
the presence of a mixed indicator solution (Methyl Red–Methylene Blue).
Granulometry (determination of particle size): according to STAS 8495/1989, section 4.6, and to
SR ISO 2591-1:1998 - mechanical sieving on sieves with mesh size of 1 and 4 mm.
Formaldehyde: the determination is based on compounding the formaldehyde in a strong acid
environment with chromotropic acid and measuring the absorbency of the pink-purple compound
at a wavelength of 570 nm.
Anti-caking agent: it is visually determined in UV light at a wavelength of 365 nm.
Borden test: 16 g of urea are dissolved in 80 ml of distilled water; after approx. 10 minutes of
stirring, 2 ml of formaldehyde solution 20% is added; after approx. 10 minutes a pH-meter is
used for reading at a t=20°C.
4. Quality control
Quality control is performed on batches of approximately 300 tons.
Each delivery is accompanied by the Conformity Statement.
At the client’s request, the product is accompanied by a Test Report, and, when expressly requested,
by an estimative calculation of the extended incertitude of the test result.
5. Packaging
The product is packed in 50 kg and 500 kg polyethylene bags or double bags (polyethylene and
polypropylene), or it can be delivered in bulk.
Polyethylene bags are closed by welding, and the polypropylene bags are closed by sewing.
The marking on the bags is in accordance with the current regulations.
• Name of the product: Prilled Technical Urea
• Declared content for each nutrient: NITROGEN N 46%, expressed as mass percentages in the
form of a whole number.
• The nutrients have to be declared both in words and chemical symbols, e.g. Nitrogen (N)
• The maximum biuret content is mandatory to be declared as: Biuret max. 1.0%
Date of issue: 30.09.2014
Version: 11
Page: 2 / 3
Net weight of the fertilizer.
Name and brand of the producer.
Name, commercial name or brand and address of the person responsible for trading the product,
with headquarters in Romania or in the European Community.
The marking on the bags and the accompanying documents have to be provided in at least one
official EU member states language.
Packed chemical products are identified through the information written on labels or on the package.
The identification data for the products delivered in bulk or in packages that exceed 100 kg is
mentioned on the accompanying documents.
•
•
•
6. Tolerances
Producers are not allowed to systematically use the advantage of tolerances. According to
Regulation (EC) No. 2003/2003, Annex II, the tolerances are negative values in mass percentage.
Nitrogen in urea
- 0.4%
7. Handling, storage, transportation, guarantees
Storage and transportation is performed in piles of maximum 20 rows for the 50 kg bags and in 3
rows for the 500 kg bags, in closed, clean and dry storehouses and the means of transport have to be
clean, dry and with waterproof covers, free of sharp objects that might deteriorate the bags (by
cutting or ripping). The goods will be protected against direct exposure to sunrays. Both
transportation and storage require temperatures between -10 and +30°C.
The product can also be transported in bulk, in open wagons, covered with a waterproof cover, or in
wagons with opening metallic roofs or special road tankers.
For the transport, the product is not classified under ADR, RID or IMDG.
Term of validity:
• 12 months from the date of bagging for the product packed in bags
• 12 months for the bulk product from the date mentioned in the
accompanying documents,
in compliance with specified transport and storage conditions.
8. Security measures
The product is non-flammable and non-explosive.
The use of individual protection equipment is recommended: protective gloves and, when necessary,
dust mask.
In order to avoid the effects on the skin, washing is mandatory after handling the product.
In case of incidents/accidents, immediately notify the local Inspectorate for Emergency Situations.
Further details in the product’s Safety Data Sheet.
Urea Plant Manager
Eng. Cristian HERBETH
Date of issue: 30.09.2014
Quality Manager
Eng. Camelia IANCULESCU
Version: 11
Technical Manager
Eng. Aurel BOTEZAN
Page: 3 / 3
F-C20-018
TECHNICAL SPECIFICATIONS No. 21
UREA SOLUTION 40%
Urea is an inorganic monoconstituent substance. It contains as impurities water and
biuret.
1. Identification and classification
Name: urea
Chemical formula: NH2-CO-NH2
ECHA registration number: 01-2119463277-33-0059
CAS number: 57-13-6
EC number: 200-315-5
Molecular mass: 60,0553
Urea is not classified as dangerous substance according to Directive 67/548/EEC and EC
Regulation no. 1272/2008.
2. Technical quality conditions
No. Characteristics
1.
Aspect
2.
Concentration, urea %
Standard/Testing method
visually
Technical
requirements
Clear liquid,
Colourless or
slightly yellow
40
EC Regulation no. 2003/2003
method 2.6.2
3.
Alkalinity, max. %
STAS 8671-78
0,2
0
3
4.
Density la t=15 C, g/cm
SR EN ISO 12185:2002
1,1-1,13
5.
pH, units, max.
STAS 8619/3-90
9,5
6.
Crystallization point, °C
STAS 8671-78
-7
Note: at the client’s request additional tests may be performed, or other requirements may be
established. The tests number 3, 5, 6 are carried out at the client’s request, but the
manufacturer guarantees the values specified in the technical specification.
3. Testing methods
• Aspect: visually
• Concentration: urea content in urea solution is determined by physical analysis method: is
determined the solution density at a temperature of 15°C, according to SR EN ISO
12185:2002 and using density concentration table, is determined the urea content in %.
By calculation is determined the concentration expressed in % N.
The chemical analysis method is used to confirm the results as follows:
nitrogen from urea according to EC Regulation 2003/2003, method 2.6.2. It is determined
gravimetrically with xanthydrol. Xanthydrol forms a precipitate with urea; co-precipitated
biuret is considered as nitrogen from urea. The error is small, its concentration in absolute
value, in compound fertilizers is usually low. The result is expressed in % urea and % N.
Date of issue: 12.08.2014
Version: 7
Page: 1 / 3
•
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•
Alkalinity: is determined according to SR ISO 1593:1999. Free alkalinity is given by the
free ammonia in the product. The testing procedure is based on determining free ammonia
by neutralisation with acid, using mixed indicator solution.
Density at a temperature of 15°C is determined in vacuum according to SR EN ISO
12185:2002 using an electronic densimeter.
pH is determined according to STAS 8619/3-90, using a laboratory pH-meter.
Freezing point is determined according to STAS 8671-78, section 4.4.2. The sample is
introduced in a test tube, which is introduced in another vessel filled with alcohol, and it is
then immersed in a cooling mixture at -30°C. The temperature that indicates a constant
value is read on the alcohol thermometer introduced in the test tube.
4. Quality inspection
Quality inspection is done on batches of approximately 20 tons, during production execution
and when loading in cisterns to delivery. Delivery batches are done and analysed countersamples are kept at the provider.
Each delivery is accompanied by the conformity statement.
At the client’s request, the product is accompanied by a test report.
5. Packaging
The products is loaded in stainless steel or plastic recipients, resistant to corrosion, in auto or
CFR cisterns.
The accompanying documents must be edited in at least one official language of the European
Union (for export). Identification data for the product delivered in bulk or in packages that
exceed 100 kg is mentioned in the accompanying documents:
• Product name: Urea solution 40%.
• Declared content for each nutrient: NITROGEN N 18,6% expressed in mass percentage.
• The nutrients must be declared in words as well as in chemical symbols. For example
Nitrogen (N).
• Net mass for the urea solution 40%.
• Name or trademark and the producer’s address.
• Name, commercial name or trademark and the address of the person responsible for
selling the product, established in Romania or in the European Community.
6. Tolerances
Producers will not use systematically the advantage of tolerances. According to EU
Regulations 2003/2003, annex II, tolerances are negative values in mass percentage.
N in urea
- 0.4%
7. Handling, storage, transport and guarantees
The product is packed and stored in tanks or containers at atmospheric pressure, tightly closed
in order to avoid spillage of urea solution.
The tanks and containers (including accessories: pipes, flanges, etc.) are made of materials
compatible with urea solution: Cr-Ni or Cr-Ni-Mo based stainless steel, or plastic material
(polyethylene, polypropylene, isobutylene, and polyfluorethylene).
The product must be stored in cool, dry and well ventilated areas.
The transportation is done in auto cisterns.
The product does not have ADR (European Agreement concerning the International
Carriage of Dangerous Goods by Road), RID (European Agreement concerning the
Date of issue: 12.08.2014
Version: 7
Page: 2 / 3
International Carriage of Dangerous Goods by Rail) and IMDG (international sea
transportation of hazardous substances) classification for transport.
Term of validity:
• 6 months from the date of loading for transport, mentioned in the
accompanying documents, in compliance with specified transport and storage
conditions.
8. Security Measures
The product is not flammable or explosive. .
It is indicated to use individual protection equipment: protective gloves, eye shield or
protective glasses.
In order to avoid the effects on the skin, washing is mandatory after handling the product.
In case of events/accidents call the local fire brigade.
More details in urea safety data sheet.
Ammonium Nitrate Plant Manager
Quality Manager
Eng. Ovidiu CRĂCIUN
Eng. Camelia IANCULESCU
Date of issue: 12.08.2014
Version: 7
Technical Manager
Eng. Aurel BOTEZAN
Page: 3 / 3