Search result: GB/T 8570.6-2010 (GB/T 8570.6-1988 Older version)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 8570.6-2010 | English | 139 |
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Determination of liquefied anhydrous ammonia -- Part 6: Oil content -- Gravimetric and infra-red methods
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GB/T 8570.6-2010
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| GB/T 8570.6-1988 | English | 199 |
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Liquefied anhydrous ammonia--Determination of oil content--Gravimetric and infra-red methods
| Obsolete |
GB/T 8570.6-1988
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| Standard ID | GB/T 8570.6-2010 (GB/T8570.6-2010) | | Description (Translated English) | Determination of liquefied anhydrous ammonia. Part 6: Oil content. Gravimetric and infra-red methods | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G10 | | Classification of International Standard | 71.040.40 | | Word Count Estimation | 6,635 | | Date of Issue | 2010-09-26 | | Date of Implementation | 2011-03-01 | | Older Standard (superseded by this standard) | GB/T 8570.6-1988 | | Quoted Standard | GB/T 8570.1; GB/T 8570.3-2010; GB/T 8570.4; HG/T 2843 | | Adopted Standard | ISO 7106-1985, MOD | | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | | Summary | This standard specifies two methods for determining anhydrous liquid nitrogen (ammonia) African volatile oil content-Gravimetric method and infrared absorption spectroscopy. Warning: The use of this standard personnel practices should be implemented in a regular room to work, the standard does not indicate that all possible security problems, the user has the responsibility to take appropriate safety and health practices to ensure compliance with conditions of wells national law liquid anhydrous ammonia highly toxic to the skin, mucous membranes and eyes corrosive, exposure can cause severe burns, the operation should be adequate protection. When the oil is below the determination of the weight of law 5mg/kg, the test results with " less than 5mg/kg quoted, or using infrared absorption spectroscopy. |
GB/T 8570.6-2010
Determination of liquefied anhydrous ammonia .Part 6. Oil content.Gravimetric and infra-red methods
ICS 71.040.40
G10
National Standards of People's Republic of China
Replacing GB/T 8570.6-1988
Determination of liquid anhydrous ammonia
Part 6. Oil content
Gravimetric and infrared absorption spectroscopy
Determination ofliquefiedanhydrousammonia-
Part 6. Oilcontent-Gravimetricandinfra-redmethods
(ISO 7106. 1985 Liquefiedanhydrousammoniaforindustrialuse-
infra-redspectrometricmethods, MOD)
2010-09-26 release.2011-03-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Preface
GB/T 8570 "Determination of liquid anhydrous ammonia method" is divided into seven parts.
- Part 1. Adoption of laboratory samples;
- Part 2. Ammonia content;
- Part 3. Residue content weight method;
- Part 4. Residual content volumetric method;
- Part 5. Moisture Fisher Fischer;
- Part 6. Oil content gravimetric and infrared absorption spectroscopy;
- Part 7. Iron content - phenanthroline spectrophotometric method.
This part is Part 6 of GB/T 8570.
This part of the replacement GB/T 8570.6-1988 "liquid anhydrous ammonia content determination of gravimetric and infrared spectroscopy."
This part of the revision using ISO 7106. 1985 "industrial liquid anhydrous ammonia content of the determination of weight and infrared spectroscopy."
The main differences between this part and ISO 7106. 1985 are. ISO 7106 taken sample.200 mL, this part is based on liquid anhydrous ammonia
Oil content ≤ 5mg/kg requirements, modified to 400mL; used sulfuric acid absorption solution concentration corresponding to 1 times, 20%.
The main differences between this edition and the previous edition are.
Preparation and calibration of reagent solutions, standard titration solutions, etc. Execution of HG/T 2843 standards;
--- increase the contents of the security warning;
- standardize the standard format according to the new requirements.
This section is proposed by the China Petroleum and Chemical Industry Association.
This section is under the jurisdiction of the National Technical Committee on Standardization of Fertilizers and Soil Conditioners (SAC/TC105).
This part of the drafting unit. the National Fertilizer Quality Supervision and Inspection Center (Shanghai), the Eastern Airlines Co., Ltd. Security Department.
The main drafters of this part. Ji Min, Wu Juan, Feng Zhuo, Chen Jie.
This part was first published in 1988.
Determination of liquid anhydrous ammonia
Part 6. Oil content
Gravimetric and infrared absorption spectroscopy
WARNING - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate 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 of the relevant national laws. Liquid anhydrous ammonia high
Toxic to the skin, mucous membranes and eyes are corrosive, contact can cause severe burns. Operation should be properly protected.
1 Scope
GB/T 8570 of this part of the liquid anhydrous ammonia (liquid ammonia) in about 105 ℃ non-volatile oil content of the two methods of determination. weight
Method and infrared absorption spectroscopy.
When the oil content measured by gravimetric method is less than 5mg/kg, the test result is reported as "less than 5mg/kg" or infrared absorption
Spectrophotometric method.
2 normative reference documents
The terms of this document are the terms of this part by reference to this part of GB/T 8570. Any reference to the date of the text
, All subsequent amendments (excluding corrigenda) or revisions do not apply to this part, however, encouragement under this section
The parties to the agreement study whether the latest version of these documents can be used. For undated references, the latest edition of this document applies
section.
GB/T 8570.1 Methods for the determination of liquid anhydrous ammonia - Part 1. Adoption of laboratory samples
GB/T 8570.3-2010 Methods for the determination of liquid anhydrous ammonia - Part 3. Residue content gravimetric method
Methods for the determination of anhydrous ammonia - Part 4. Residue content volumetric method GB/T
HG/T 2843 chemical analysis of chemical fertilizers commonly used standard titration solution, standard solution, reagent solution and indicator solution
3 principle
After evaporation of the liquid ammonia sample at room temperature, the oil in the residue was extracted with carbon tetrachloride. After heating to remove carbon tetrachloride, weighed and left
; Or at a fixed wavelength of about 3.42 m (corresponding to the strongest absorption band of asymmetric vibrations of the CH group), the organic matter
Absorbance.
4 reagents and materials
The following parts of the reagents and solutions are toxic or corrosive, the operator should be careful to prevent inhalation of its vapor, the skin and eye contact is strictly prohibited,
Such as splashing on the skin should be immediately washed with water or suitable way to deal with, if not suited to immediate medical treatment.
The reagents, solutions and water used in this part shall comply with the requirements of HG/T 2843 when not specified and formulated.
4.1 carbon tetrachloride. for infrared absorption spectrometry determination, the analysis wavelength of 3.42μm in the vicinity, should not contain the wavelength of infrared light
Absorbable impurities;
4.2 sulfuric acid solution, the mass fraction of about 20%;
4.3 hydrochloric acid solution, the mass fraction of about 10%;
4.4 paraffin oil standard solution. 0.5mg/mL carbon tetrachloride solution.
Weigh 0.050g spectrum of pure paraffin oil (commonly used n-hexadecane), said quasi-0.0002g, placed in 100mL beaker, add carbon tetrachloride
To about 50mL, to be dissolved, all transferred into the 100mL volumetric flask, diluted with the same carbon tetrachloride to the scale, shake;
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