ASTM D120-08
(Specification)Standard Specification for Rubber Insulating Gloves
Standard Specification for Rubber Insulating Gloves
ABSTRACT
This specification covers manufacturing and testing of rubber insulating gloves for protection of workers from electrical shock. Two types of gloves are provided and are designated as Type I, non-resistant to ozone, and Type II, resistant to ozone. Six classes of gloves, differing in electrical characteristics, are provided and are designated as Class 00, Class 0, Class 1, Class 2, Class 3, and Class 4. The following tests shall be performed: ac proof test; ac breakdown test; ac moisture absorption/proof test; dc proof test; dc breakdown test; ozone resistance test; chemical tests; tensile strength; tear resistance test; and puncture resistance test.
SCOPE
1.1 This specification covers manufacturing and testing of rubber insulating gloves for protection of workers from electrical shock.
1.2 Two types of gloves are provided and are designated as Type I, non-resistant to ozone, and Type II, resistant to ozone.
1.3 Six classes of gloves, differing in electrical characteristics, are provided and are designated as Class 00, Class 0, Class 1, Class 2, Class 3, and Class 4.
1.4 The values stated in SI units are to be regarded as standard. See ASTM SI 10.
1.5 The following safety hazards caveat pertains only to the test method portion, Sections 16, 17, 18, and 19, 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. For specific precaution statements, see 18.2.
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Designation: D 120 – 08
Standard Specification for
1
Rubber Insulating Gloves
This standard is issued under the fixed designation D 120; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D 2240 Test Method for Rubber Property—Durometer
Hardness
1.1 This specification covers manufacturing and testing of
D 2865 Practice for Calibration of Standards and Equip-
rubber insulating gloves for protection of workers from elec-
ment for Electrical Insulating Materials Testing
trical shock.
F 819 Terminology Relating to Electrical Protective Equip-
1.2 Two types of gloves are provided and are designated as
ment for Workers
Type I, non-resistant to ozone, and Type II, resistant to ozone.
SI 10 Standard for Use of the International System of Units
1.3 Six classes of gloves, differing in electrical characteris-
(SI): The Modern Metric System
tics,areprovidedandaredesignatedasClass00,Class0,Class
1, Class 2, Class 3, and Class 4.
3. Terminology
1.4 The values stated in SI units are to be regarded as
3.1 Definitions:
standard. See ASTM SI 10.
3.1.1 color splash—a splash, smear, or streak of contrasting
1.5 The following safety hazards caveat pertains only to the
color evident on the inside or outside surface of the gloves that
test method portion, Sections 16, 17, 18, and 19, of this
was deposited during the dipping operation and is vulcanized
specification: This standard does not purport to address all of
into the glove as part of the homogenous compound.
the safety concerns, if any, associated with its use. It is the
3.1.2 glove cuff roll—the roll or reinforced edge of an
responsibility of the user of this standard to establish appro-
insulating glove at the cuff.
priate safety and health practices and determine the applica-
3.1.3 halogenation treatment—exposure of the entire glove
bility of regulatory limitations prior to use. For specific
surface area to a halogen for the purpose of reducing surface
precaution statements, see 18.2.
friction.
2. Referenced Documents 3.1.4 ozone—a very active form of oxygen that may be
2 produced by corona, arcing, or ultraviolet rays.
2.1 ASTM Standards:
3.1.5 user—the employer or entity purchasing the equip-
D 297 Test Methods for Rubber Products—Chemical
ment to be utilized by workers for their protection; in the
Analysis
absence of such an employer or entity, the individual purchas-
D 412 Test Methods for Vulcanized Rubber and Thermo-
ing and utilizing the protective equipment.
plastic Elastomers—Tension
3.1.6 working area—allfingerandthumbcrotches,thepalm
D 573 Test Method for Rubber—Deterioration in an Air
(area between the wrist and the base of the finger and thumb)
Oven
and the area of the finger and thumb facing the palm not
D 624 Test Method for Tear Strength of Conventional
extending beyond the center line of the crotch. See Fig. 1.
Vulcanized Rubber and Thermoplastic Elastomers
3.1.7 For definitions of other terms, refer to Terminology
D 1415 Test Method for Rubber Property—International
F 819.
Hardness
4. Significance and Use
1
This specification is under the jurisdiction of ASTM Committee F18 on
4.1 This specification covers the minimum electrical,
Electrical Protective Equipment for Workers and is the direct responsibility of
chemical, and physical properties guaranteed by the manufac-
Subcommittee F18.15 onWorker Personal Equipment.This standard replacesANSI
turer and the detailed procedures by which such properties are
Standard J 6.6, which is no longer available.
Current edition approved Oct. 1, 2008. Published November 2008. Originally
to be determined. The purchaser has the option to perform or
approved in 1921. Last previous edition approved in 2006 as D 120 – 02a(2006).
have performed any of these tests in order to verify the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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D 120–08
FIG. 1 Working Area of a Rubber Insulating Glove
TABLE 1 Proof-Test/Use Voltage Relationship
5. Classification
Maximum AC
5.1 Gloves covered under this specification shall be desig-
AC Proof-Test DC Proof-Test Maximum DC Use
Class of Glove Use Voltage ac
Voltage, rms, V Voltage, avg, V Voltage avg, V
nated as Type I or Type II; Class 00,
...
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 120–02a (Reapproved 2006) Designation: D 120 – 08
Standard Specification for
1
Rubber Insulating Gloves
This standard is issued under the fixed designation D 120; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This specification covers manufacturing and testing of rubber insulating gloves for protection of workers from electrical
shock.
1.2 Two types of gloves are provided and are designated as Type I, non-resistant to ozone, and Type II, resistant to ozone.
1.3 Six classes of gloves, differing in electrical characteristics, are provided and are designated as Class 00, Class 0, Class 1,
Class 2, Class 3, and Class 4.
1.4 The values stated in SI units are to be regarded as the standard. See ASTM SI 10.
1.5 The following safety hazards caveat pertains only to the test method portion, Sections 16, 17, 18, and 19, 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. For specific precaution statements, see 18.2.
2. Referenced Documents
2
2.1 ASTM Standards:
D 297 Test Methods for Rubber ProductsChemical Analysis
D 412 Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTension D518Test Method for Rubber Deteriora-
tionSurface Cracking
D 573 Test Method for RubberDeterioration in an Air Oven
D 624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers D1149Test Methods
for Rubber Dete-
riorationCracking
in an Ozone Con-
trolled Environ-
ment
D 1415 Test Method for Rubber PropertyInternational Hardness
D 2240 Test Method for Rubber PropertyDurometer Hardness
D 2865 Practice for Calibration of Standards and Equipment for Electrical Insulating Materials Testing
F 819 Terminology Relating to Electrical Protective Equipment for Workers
SI 10 Standard for Use of the International System of Units (SI): The Modern Metric System
3. Terminology
3.1 Definitions:
3.1.1 color splash—a splash, smear, or streak of contrasting color evident on the inside or outside surface of the gloves that was
deposited during the dipping operation and is vulcanized into the glove as part of the homogenous compound.
3.1.2 glove cuff roll—the roll or reinforced edge of an insulating glove at the cuff.
3.1.3 halogenation treatment—exposure of the entire glove surface area to a halogen for the purpose of reducing surface
friction.
3.1.4 ozone—a very active form of oxygen that may be produced by corona, arcing, or ultraviolet rays.
1
This specification is under the jurisdiction of ASTM Committee F18 on Electrical Protective Equipment for Workers and is the direct responsibility of Subcommittee
F18.15 on Worker Personal Equipment. This standard replaces ANSI Standard J 6.6, which is no longer available.
Current edition approved Dec.Oct. 1, 2006.2008. Published March 2007.November 2008. Originally approved in 1921. Last previous edition approved in 20022006 as
D 120 – 02a(2006).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D 120–08
3.1.5 user—the employer or entity purchasing the equipment to be utilized by workers for their protection; in the absence of
such an employer or entity, the individual purchasing and utilizing the protective equipment.
3.1.6 working area—all finger and thumb crotches, the palm (area between the wrist and the base of the finger and thumb) and
the area of the finger and thumb facing the palm not extending beyond the center line of the crotch. See Fig. 1.
3.1.7 For definitions of other terms, refer to Terminology F 819.
4. Significance and Use
4.1 This specification covers the minimum electrical, chemical, and physical properties guaranteed by the manufacturer and the
detailed proced
...
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