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§ 2743. General Requirements--Microwave Ovens.

16 CA ADC § 2743Barclays Official California Code of Regulations

Barclays California Code of Regulations
Title 16. Professional and Vocational Regulations
Division 27. Bureau of Electronic and Appliance Repair
Article 4. Accepted Trade Standards
16 CCR § 2743
§ 2743. General Requirements--Microwave Ovens.
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.


Note: Authority cited: Section 9814, Business and Professions Code. Reference: Sections 9841 and 9842, Business and Professions Code.
1. New section filed 11-10-80; effective thirtieth day thereafter (Register 80, No. 46).
This database is current through 4/12/24 Register 2024, No. 15.
Cal. Admin. Code tit. 16, § 2743, 16 CA ADC § 2743
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