Elcometer 266 Manual Del Usuario página 37

APPENDIX A: STANDARDS (continued)
Standard or
Method Date
Number
ASTM F423 1975
ASTM G6 1983
ASTM G62-B 1987
BS 1344-11 1998
EN 14430 2004
ISO 2746 2014
ISO 29601 2011
JIS G-3491 1993
†
Elcometer 266 Voltage Setting: VC = Voltage Calculator; M = Manual
www.elcometer.com
Title
PTFE plastic-lined ferrous
metal pipe and ttings
Abrasion resistance of
pipeline coatings
Holiday detection in
pipeline coatings
Methods of testing vitreous
enamel nishes Part II:
High voltage test for
articles used under highly
corrosive conditions
Vitreous and porcelain
enamels - High Voltage
Test
Vitreous and porcelain
enamels - Enamelled
articles for service under
highly corrosive conditions
- High voltage test
Corrosion protection by
protective paint systems -
Assessment of porosity in
a dry lm
Asphalt coatings on water
line pipes
Notes
Electrostatic test: 10 kV,
spark at defect is cause for
rejection
Porosity test prior to
abrasion testing. Test
voltage is calculated as
.
V = 1250 Thickness (mil)
Method B.
Thickness <1.016mm
.
= 3294 Thickness (mm)
Thickness >1.041mm
.
= 7843 Thickness (mm)
Same as ISO 2746 (Test
voltage above 2 kV for
enamel thicker than 220µm)
DC or pulsed test voltage.
V = 1.1 kV to 8.0 kV for
thicknesses of 100µm to
2000µm
Test voltage above 2 kV for
enamel thicker than 220µm
Low and high voltage
equipment and test
Inside walls: 8-10 kV
Dipped Coatings: 6-7 kV
Outside walls: 10-12 kV
R
Voltage
†
Setting
M
VC, M
VC, M
M
VC, M
M
M
M
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