ASTM D120-14

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D120 −14
StandardSpecification for
1
Rubber Insulating Gloves
This standard is issued under the fixed designation D120; 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 U.S. Department of Defense.
1. Scope D1415 Test Method for Rubber Property—International
Hardness
1.1 This specification covers manufacturing and testing of
D2240 Test Method for Rubber Property—Durometer Hard-
rubber insulating gloves for protection of workers from elec-
ness
trical shock.
D2865 Practice for Calibration of Standards and Equipment
1.2 Two types of gloves are provided and are designated as
for Electrical Insulating Materials Testing
Type I, non-resistant to ozone, and Type II, resistant to ozone.
F819 Terminology Relating to Electrical Protective Equip-
ment for Workers
1.3 Six classes of gloves, differing in electrical
characteristics, are provided and are designated as Class 00, IEEE/ASTM SI 10 American National Standard for Metric
Practice
Class 0, Class 1, Class 2, Class 3, and Class 4.
1.4 The values stated in SI units are to be regarded as
3. Terminology
standard. See IEEE/ASTM SI 10.
3.1 Definitions:
1.5 The following safety hazards caveat pertains only to the
3.1.1 color splash—a splash, smear, or streak of contrasting
test method portion, Sections 16, 17, 18, and 19, of this
color evident on the inside or outside surface of the gloves that
specification: This standard does not purport to address all of
was deposited during the dipping operation and is vulcanized
the safety concerns, if any, associated with its use. It is the
into the glove as part of the homogenous compound.
responsibility of the user of this standard to establish appro-
3.1.2 glove cuff roll—the roll or reinforced edge of an
priate safety and health practices and determine the applica-
insulating glove at the cuff.
bility of regulatory limitations prior to use.For specific precau-
tion statements, see 18.2. 3.1.3 halogenation treatment—exposure of the entire glove
surface area to a halogen for the purpose of reducing surface
2. Referenced Documents
friction.
2
2.1 ASTM Standards: 3.1.4 ozone—a very active form of oxygen that may be
D297 Test Methods for Rubber Products—Chemical Analy- produced by corona, arcing, or ultraviolet rays.
sis
3.1.5 user—the employer or entity purchasing the equip-
D412 Test Methods forVulcanized Rubber andThermoplas-
ment to be utilized by workers for their protection; in the
tic Elastomers—Tension
absence of such an employer or entity, the individual purchas-
D573 Test Method for Rubber—Deterioration in an Air
ing and utilizing the protective equipment.
Oven
3.1.6 working area—all finger and thumb crotches, the palm
D624 Test Method for Tear Strength of Conventional Vul-
(area between the wrist and the base of the finger and thumb)
canized Rubber and Thermoplastic Elastomers
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
1
This specification is under the jurisdiction of ASTM Committee F18 on
F819.
Electrical Protective Equipment for Workers and is the direct responsibility of
Subcommittee F18.15 on Worker Personal Equipment.This standard replacesANSI
Standard J 6.6, which is no longer available.
4. Significance and Use
Current edition approved April 1, 2014. Published April 2014. Originally
4.1 This specification covers the minimum electrical,
approved in 1921. Last previous edition approved in 2009 as D120 – 09. DOI:
10.1520/D0120-14.
chemical, and physical properties guaranteed by the manufac-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
turer and the detailed procedures by which such properties are
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
to be determined. The purchaser has the option to perform or
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. have performed any of these tests in order to verify the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D120−14
FIG. 1 Working Area of a Rubber Insulating Glove
TABLE 1 Proof-Test/Use Voltage Relationship
5. Classification
Maximum AC
AC Proof-Test DC Proof-Test Maximum DC Use
5.1 Gloves covered under this specification shall be desig-
Class of Glove Use Voltage ac
Voltage, rms, V Voltage, avg, V Voltage avg, V
rms, V nated as Type I or Type II; Class
...