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ASTM D1933-03(2017)

(Specification)

Standard Specification for Nitrogen Gas as an Electrical Insulating Material

Standard Specification for Nitrogen Gas as an Electrical Insulating Material

ABSTRACT
This specification covers three types of nitrogen gas used as an electrical insulating material in electrical equipment: Type I, obtained from the air by liquefaction processes and dried; Type II, obtained from the air by liquefaction processes, deoxidized with hydrogen over a platinum catalyst, and dried; and Type III, obtained from the air by liquefaction processes and if necessary deoxidized by suitable means. Materials shall be tested and the individual grades shall conform to specified values of % volume of nitrogen and rare gases, hydrogen, and oxygen; and dew point.
SCOPE
1.1 This specification covers three types of nitrogen used as an electrical insulating material in electrical equipment:  
1.1.1 Type I,  obtained from the air by liquefaction processes and dried,  
1.1.2 Type II,  obtained from the air by liquefaction processes, deoxidized with hydrogen over a platinum catalyst, and dried, and  
1.1.3 Type III,  obtained from the air by liquefaction processes and if necessary deoxidized by suitable means.  
Note 1: The fact that metal containers are filled with materials meeting this specification does not exclude the possibility that the materials might become contaminated with unlisted impurities.  
1.2 The following safety hazards caveat pertains only to the test method portion, Section 5, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Published
Publication Date
31-Dec-2016
ICS
29.040.20 - Insulating gases
Technical Committee
D27 - Electrical Insulating Liquids and Gases
Drafting Committee
D27.02 - Gases and Non-Mineral Oil Liquids
Current Stage
Ref Project

Relations

Replaces
ASTM D1933-03(2008) - Standard Specification for Nitrogen Gas as an Electrical Insulating Material
Effective Date
01-Jan-2017
Refers
ASTM E260-96(2019) - Standard Practice for Packed Column Gas Chromatography
Effective Date
01-Sep-2019
Refers
ASTM E260-96(2011) - Standard Practice for Packed Column Gas Chromatography
Effective Date
01-Nov-2011
Refers
ASTM E105-10 - Standard Practice for Probability Sampling Of Materials
Effective Date
01-Oct-2010
Refers
ASTM D2029-97(2008) - Standard Test Methods for Water Vapor Content of Electrical Insulating Gases by Measurement of Dew Point
Effective Date
01-Dec-2008
Refers
ASTM E260-96(2006) - Standard Practice for Packed Column Gas Chromatography
Effective Date
01-Mar-2006
Refers
ASTM E105-04 - Standard Practice for Probability Sampling Of Materials
Effective Date
01-Jun-2004
Refers
ASTM E260-96(2001) - Standard Practice for Packed Column Gas Chromatography
Effective Date
01-Jan-2001
Refers
ASTM E260-96 - Standard Practice for Packed Column Gas Chromatography
Effective Date
01-Jan-2001
Refers
ASTM D2029-97 - Standard Test Methods for Water Vapor Content of Electrical Insulating Gases by Measurement of Dew Point
Effective Date
10-Apr-1997
Refers
ASTM D2029-97(2003) - Standard Test Methods for Water Vapor Content of Electrical Insulating Gases by Measurement of Dew Point
Effective Date
10-Apr-1997
Refers
ASTM E105-58(1996) - Standard Practice for Probability Sampling Of Materials
Effective Date
01-Jan-1996
Referred By
ASTM D7150-13(2020) - Standard Test Method for the Determination of Gassing Characteristics of Insulating Liquids Under Thermal Stress
Effective Date
01-Jan-2017
Referred By
ASTM D923-15 - Standard Practices for Sampling Electrical Insulating Liquids
Effective Date
01-Jan-2017
Referred By
ASTM D2029-97(2017) - Standard Test Methods for Water Vapor Content of Electrical Insulating Gases by Measurement of Dew Point
Effective Date
01-Jan-2017

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ASTM D1933-03(2017) - Standard Specification for Nitrogen Gas as an Electrical Insulating MaterialASTM D1933-03(2017) - Standard Specification for Nitrogen Gas as an Electrical Insulating Material
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ASTM D1933-03(2017) - Standard Specification for Nitrogen Gas as an Electrical Insulating Material
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Standards Content (Sample)


This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:D1933 −03 (Reapproved 2017)
Standard Specification for
Nitrogen Gas as an Electrical Insulating Material
This standard is issued under the fixed designation D1933; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope containers, preferably by means of a dual-stage high-pressure
gas regulator, capable of reducing inlet gas pressures of 15
1.1 This specification covers three types of nitrogen used as
MPa(2200psi)toaconstantlowdischargepressure.Screwthe
an electrical insulating material in electrical equipment:
pressure regulator inlet connection on to the container valve
1.1.1 TypeI, obtained from the air by liquefaction processes
outlet. Connect the regulator outlet connection to the gas
and dried,
sampling pipe or to the gas analyzing equipment by means of
1.1.2 Type II, obtained from the air by liquefaction
metal or glass tubing, except that rubber tubing may be used to
processes, deoxidized with hydrogen over a platinum catalyst,
secure butt joints in metal-to-glass or glass-to-glass tubing.
and dried, and
Take care to ensure that all tubing is clean and dry and the
1.1.3 Type III, obtained from the air by liquefaction pro-
sampling apparatus is thoroughly purged of atmospheric gases
cesses and if necessary deoxidized by suitable means.
before the test specimen is taken. Where a multiplicity of
NOTE 1—The fact that metal containers are filled with materials
cylinders are to be sampled, follow Practice E105 if it is
meeting this specification does not exclude the possibility that the
considered satisfactory to sample less than the total number of
materials might become contaminated with unlisted impurities.
containers.
1.2 The following safety hazards caveat pertains only to the
4.2 Nitrogen Shipped as a Liquid in Metal Containers and
test method portion, Section 5, of this specification: This
Used as a Gas—Use the same sampling procedure as that for
standarddoesnotpurporttoaddressallofthesafetyconcerns,
nitrogen shipped as a gas in high-pressure metal containers
ifany,associatedwithitsuse.Itistheresponsibilityoftheuser
with the following exception: Extract gas samples from the
of this standard to establish appropriate safety and health
container or containers preferably by means of a single-stage
practices and determine the applicability of regulatory limita-
gas regulator capable of reducing inlet gas pressures of 1.7
tions prior to use.
MPa (250 psi) to a constant low discharge pressure.
2. Referenced Documents
5. Test Methods
2.1 ASTM Standards:
D2029 Test Methods for Water Vapor Content of Electrical
5.1 Determine the properties enumerated in this specifica-
Insulating Gases by Measurement of Dew Point
tion in accordance with the following methods:
E105 Practice for Probability Sampling of Materials
5.1.1 Nitrogen and Rare Gases—Calculate by difference
E260 Practice for Packed Column Gas Chromatography
after oxygen and hydrogen values
...

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1.2.1.1 The drawing in Annex A6 is in inch-pound units.  
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1.1 This specification covers lap cement consisting of asphalt dissolved in a volatile petroleum solvent with or without mineral or other stabilizers, or both, for use with roll roofing. The fibered version of these cements excludes the use of asbestos fibers.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.3 The following precautionary caveat applies only to the test method portion, Section 6, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Technical specification
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