Current through Register 2024 Notice Reg. No. 38, September 20, 2024
All service dealers engaged in the repair of microwave ovens
shall be subject to the following requirements:
(a) Service Responsibilities.
(1) A service dealer shall not defeat the
interlock systems of a microwave oven.
(2) A service dealer shall not repair a
microwave oven in such a manner as to cause leakage in excess of those
standards specified in subsection (d) of this section.
(3) A service dealer shall perform a
microwave emission leakage test in accordance with the measurement and test
procedures set forth in subsection (b) of this section in the following
instances:
(A) Where there is evidence of
damage to the cabinet, safety interlocks, or the door, including, such parts as
the glass, screen, seals, hinges, or latches;
(B) Where there is looseness or obvious wear
or misalignment of the door and its component parts, or seal;
(C) Where there is repair to or replacement
of a door, including its component parts, or seal;
(D) Where the service dealer has reason to
believe, consistent with standards of good and accepted workmanlike repair,
that the microwave oven is leaking microwave energy in excess of those limits
specified in subsection (d) of this section.
(b) Measurement and Test Procedures.
(1) Leakage levels shall be determined by
measurements in microwave power density made with an instrument system which:
(A) Reaches 90 percent of its steady-state
reading within 3 seconds when the system is subjected to a steppe input
signal.
(B) Has a leakage detector
with an effective aperture of 25 square centimeters or less as measured in a
plane wave, having no dimension exceeding 10 centimeters.
(C) Is capable of measuring microwave oven
leakage levels with an accuracy of plus 25 percent and minus 20 percent (plus
or minus 1 decibel).
(D) Has been
calibrated within the past 12 months.
(2) Measurements shall be made in accordance
with the manufacturer's leakage test procedures or with the microwave oven
operating at its maximum output and containing a load of 275 ± 15
milliliters of tap water initially at room temperature placed within the cavity
at the center of the load-carrying surface provided by the manufacturer. The
water container for the latter procedure shall be a low form 600-milliliter
beaker having an inside diameter of approximately 8.5 centimeters and made of
an electrically nonconductive material, such as glass or plastic.
(3) Measurements shall be made with the door
fully closed.
(4) Measurements
shall be made at points 5 centimeters or less from external surfaces of the
oven.
(c) Training of
Repair Personnel. The service dealer shall ensure that each technician who
repairs microwave ovens in his or her employ is instructed in the test
procedures, compliance criteria, and requirements of this section.
(d) Compliance Criteria.
(1) Where a service dealer is required by
subsection (a) of this section to conduct a microwave emission leakage test, he
or she shall determine whether the leakage of microwave emission is in excess
of the following limits:
(A) For ovens
manufactured after October 1, 1971, leakage in excess of five (5) milliwatts
per square centimeter at any point five (5) centimeters or more from the
external surface of the oven.
(B)
For ovens manufactured before October 1, 1971, leakage in excess of ten (10)
milliwatts per square centimeters at any point five (5) centimeters or more
from the external surface of the oven. (2) Microwave ovens shall be in
compliance with this subsection if the maximum power density of microwave
emission leakage measured in the test procedures specified in subsection (b) of
this section does not exceed the microwave emission leakage limits specified in
subsection (d)(1) of this section measured through at least one stirrer
cycle.
(e)
Invoice Requirements. Where a microwave emission leakage test was conducted,
the service dealer shall indicate that fact on the invoice. If the emission
leakage exceeds those limits as prescribed in subsection (d) of this section,
the service dealer shall also notify the customer that the unit is a potential
safety hazard.
1. New section
filed 11-10-80; effective thirtieth day thereafter (Register 80, No.
46).
Note: Authority cited: Section
9814,
Business and Professions Code. Reference: Sections
9841
and
9842,
Business and Professions Code.
