TB-9017
Page 4 of 6
© 2022 DESCO INDUSTRIES INC
Employee Owned
SCS
- 926 JR Industrial Drive, Sanford, NC 27332
East: (919) 718-0000 | West: (909) 627-9634 • Website:
Procedure:
Place the SCS 701 Analog Surface
Resistance Megohmmeter Kit on a table top or
other stable surface. Connect the test leads to the
Megohmmeter by means of the right angle banana
plugs. Connect the other end of one of the leads to one
of the test weights and place the weight on the surface
to be tested. Use one of the supplied clips to connect the
other lead to the groundable point on the static control
surface. Depress TEST button for 15 seconds and then
record the reading.
E. Surface-to-surface Test: Test samples as shown in
Figure 8 use both test weights and repeat the same
test procedure used to determine (RTS-GP).
F. Repeat A through E after conditioning samples at
73°F (23°C) and 12% RH. Use the same test points
and record the values.
Resistance Measurement of Static Control Flooring
This section provides a summary of installed or applied
floor material measurements specified and described by
ESD-S7.1.
Note: The following paragraphs are offered
as a co densed summary of the test methods and
procedures outlined in the EOS/ESD standard. For
complete details, refer to the standard.
PERIODIC PERFORMANCE TESTING OF INSTALLED
OR APPLIED FLOORING MATERIALS
(Measurement of resistance from the surface of an
installed floor to GROUNDABLE POINT at ambient
temperature and humidity).
Note: GROUNDABLE POINT is a point on the floor
material that is intended to accommodate an electrical
connection from the floor material to an appropriate
electrical ground. The ground point may be an electrical
ground, building ground, or other suitable ground. If you
have questions concerning the correct ground, refer to
EOS/ESD Standard 6.0 and/or contact a qualified
electrician.
2021
OF F
10V
100V
BA TTE RY
TEST
CONTINUITY
TEST
TEST
READ MA NUAL BEFORE US
E
OHMS
SURF AC E
TEST
TAUT BAN D
SUSPENSION
10
9
1G
10G
FAIL
PAS
S
10
10
10
11
100G
10
8
10
7
10
6
10
5
0
1M
100K
0
10M
100M
CONTINUITY
BATTE RY
100V
0
10K
100K
1M
10M
100M
TO
TEST W EIGHT AT
TEST
POINT A & B
STATIC CONTROL SURFACE GROUNDABLE POINTS
Figure 8. Material evaluation surface to surface test
The Resistance-to-Ground test verifies the surface is
working correctly and will drain a static charge in a
reasonable time. This test involves measurement of
the total resistance from the static control surface
through the conductor or ground cord to the ESD
GROUND (ESDG), verifying the static control system is
functioning correctly. Note: ESD 7.1 is designed to
measure floor materials with resistances of 2.5 x 10
4
to
1.0 x 10
11
ohms.
The following procedures should be followed when
testing installed static control floor mats or flooring
surfaces.
Test Procedure for Resistance to Ground
A. Complete BATTERY TEST and CONTINUITY TEST.
B. Before testing new floor mats or newly installed
floors, clean mats/floors per manufacturer’s
recommendations. For testing of floor finishes or
monitoring of existing floor materials, test in an as-is
condition.
C. Perform tests at ambient humidity.
D. Place the SCS 701 Analog Surface Resistance
Megohmmeter Kit and test weight at the desired test
location.
E. Connect one lead of the meter to ground with
supplied clip and the other lead to the test weight.
F. Set meter to 100V. Place test weight on the surface
of the material being tested.
G. Push test button and record the resistance after the
measurement has stabilized or after 15 seconds.
Release test button.
H. Repeat the procedure placing the test weight on the
surface at different locations.
I. Perform a minimum of five tests per contiguous floor
surface material or a minimum of five tests per 5,000
square feet (464.5 m2) of floor material, whichever is
greater. A minimum of three of the five tests should
be conducted in those areas that are subject to wear
or have chemical or water spillage or are visibly dirty.