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ASTM D1933-03(2008)

(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
Historical
Publication Date
30-Apr-2008
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 - Standard Specification for Nitrogen Gas as an Electrical Insulating Material
Effective Date
01-May-2008
Replaced By
ASTM D1933-03(2017) - Standard Specification for Nitrogen Gas as an Electrical Insulating Material
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-May-2008
Referred By
ASTM D2413-16(2022) - Standard Practice for Preparation of Insulating Paper and Board Impregnated with a Liquid Dielectric
Effective Date
01-May-2008
Referred By
ASTM D5282-05(2020) - Standard Test Methods for Compatibility of Construction Material with Silicone Fluid Used for Electrical Insulation
Effective Date
01-May-2008
Referred By
ASTM D7150-13(2020) - Standard Test Method for the Determination of Gassing Characteristics of Insulating Liquids Under Thermal Stress
Effective Date
01-May-2008
Referred By
ASTM D923-15 - Standard Practices for Sampling Electrical Insulating Liquids
Effective Date
01-May-2008

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Standards Content (Sample)


NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D1933 −03 (Reapproved 2008)
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 are known.
5.1.2 Hydrogen—Practice
...


This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D 1933–97 Designation: D 1933 – 03 (Reapproved 2008)
Standard Specification for
Nitrogen Gas as an Electrical Insulating Material
This standard is issued under the fixed designation D 1933; 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
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 TypeII, 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
standardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
2. Referenced Documents
2.1 ASTM Standards:
D 2029 Test Methods for Water Vapor Content of Electrical Insulating Gases by Measurement of Dew Point Point
E 105Practice for Probability Sampling of Materials 105 Practice for Probability Sampling Of Materials
E 260Practice for Packed Column Gas Chromatography 260 Practice for Packed Column Gas Chromatography
3. Composition and Properties
3.1 Samples extracted from nitrogen containers shall conform to the requirements prescribed in Table 1.
4. Sampling
4.1 Nitrogen Shipped as a Gas in High-Pressure Metal Containers—Extract test specimens from the container or containers,
preferably by means of a dual-stage high-pressure gas regulator, capable of reducing inlet gas pressures of 2200 psi (15 MPa)15
MPa (2200 psi) to a constant low discharge pressure. Screw the pressure regulator inlet connection on to the container valve outlet.
Connect the regulator outlet connection to the gas sampling pipe or to the gas analyzing equipment by means of metal or glass
tubing, except that rubber tubing may be used to secure butt joints in metal-to-glass or glass-to-glass tubing. Take care to ensure
that all tubing is clean and dry and the sampling apparatus is thoroughly purged of atmospheric gases before the test specimen is
taken.Where a multiplicity of cylinders are to be sampled, follow Practice E 105 if it is considered satisfactory to sample less than
the total number of containers.
4.2 Nitrogen Shipped as a Liquid in Metal Containers and Used as a Gas—Use the same sampling procedure as that for
nitrogen shipped as a gas in high-pressure metal containers with the following exception: Extract gas samples from the container
or containers preferably by means of a single-s
...

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5.1 This test method measures a lubricant's ability to protect hypoid final drive axles from abrasive wear, adhesive wear, plastic deformation, and surface fatigue when subjected to low-speed, high-torque conditions. Lack of protection can lead to premature gear or bearing failure, or both.  
5.2 This test method is used, or referred to, in specifications and classifications of rear-axle gear lubricants such as:  
5.2.1 Specification D7450.  
5.2.2 American Petroleum Institute (API) Publication 1560.  
5.2.3 SAE J308.  
5.2.4 SAE J2360.
SCOPE
1.1 This test method, commonly referred to as the L-37-1 test, describes a test procedure for evaluating the load-carrying capacity, wear performance, and extreme pressure properties of a gear lubricant in a hypoid axle under conditions of low-speed, high-torque operation.3  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.2.1 Exceptions—Where there is no direct SI equivalent such as National Pipe threads/diameters, tubing size, or where there is a sole source supply equipment specification.
1.2.1.1 The drawing in Annex A6 is in inch-pound units.  
1.3 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. Specific warning statements are provided in 7.2 and 10.1.  
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.

  • Standard
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  • Standard
    18 pages
    English language
    sale 15% off