16 CFR 432.3 - Standard test conditions.

§ 432.3 Standard test conditions.
For purposes of performing the tests necessary to make the disclosures required under § 432.2 of this part:
(a) The power line voltage shall be 120 volts AC (230 volts when the equipment is made for foreign sale or use, unless a different nameplate rating is permanently affixed to the product by the manufacturer in which event the latter figure would control), RMS, using a sinusoidal wave containing less than 2 percent total harmonic content. In the case of equipment designed for battery operation only, tests shall be made with the battery power supply for which the particular equipment is designed and such test voltage must be disclosed under the required disclosures of § 432.2 of this part. If capable of both AC and DC battery operation, testing shall be with AC line operation;
(b) The AC power line frequency for domestic equipment shall be 60 Hz and 50 Hz for equipment made for foreign sale or use;
(c) The amplifier shall be preconditioned by simultaneously operating all channels at one-eighth of rated power output for one hour using a sinusoidal wave at a frequency of 1,000 Hz; provided, however, that for amplifiers utilized as a component in a self-powered subwoofer system, the sinusoidal wave used as a preconditioning signal may be any frequency within the amplifier's intended operating bandwidth that will allow the amplifier to be driven to one-eighth of rated power for one hour;
(d) The preconditioning and testing shall be in still air and an ambient temperature of at least 77 °F (25 °C);
(e) Rated power shall be obtainable at all frequencies within the rated power band without exceeding the rated maximum percentage of total harmonic distortion after input signals at said frequencies have been continuously applied at full rated power for not less than five (5) minutes at the amplifier's auxiliary input, or if not provided, at the phono input.
(f) At all times during warm-up and testing, tone loudness-contour and other controls shall be preset for the flattest response.
[39 FR 15387, May 3, 1974, as amended at 65 FR 81240, Dec. 22, 2000]

Title 16 published on 2014-01-01

no entries appear in the Federal Register after this date.

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

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United States Code
U.S. Code: Title 15 - COMMERCE AND TRADE

§ 41 - Federal Trade Commission established; membership; vacancies; seal

§ 42 - Employees; expenses

§ 43 - Office and place of meeting

§ 44 - Definitions

§ 45 - Unfair methods of competition unlawful; prevention by Commission

§ 45a - Labels on products

§ 46 - Additional powers of Commission

§ 46a - Concurrent resolution essential to authorize investigations

§ 47 - Reference of suits under antitrust statutes to Commission

§ 48 - Information and assistance from departments

§ 49 - Documentary evidence; depositions; witnesses

§ 50 - Offenses and penalties

§ 51 - Effect on other statutory provisions

§ 52 - Dissemination of false advertisements

§ 53 - False advertisements; injunctions and restraining orders

§ 54 - False advertisements; penalties

§ 55 - Additional definitions

§ 56 - Commencement, defense, intervention and supervision of litigation and appeal by Commission or Attorney General

§ 57 - Separability clause

§ 57a - Unfair or deceptive acts or practices rulemaking proceedings

15 U.S. Code § 32, 33 - Repealed.

§ 57b - Civil actions for violations of rules and cease and desist orders respecting unfair or deceptive acts or practices

15 U.S. Code § 32, 33 - Repealed.

15 U.S. Code § 32, 33 - Repealed.

15 U.S. Code § 57b–2a - Confidentiality and delayed notice of compulsory process for certain third parties

15 U.S. Code § 57b–2b - Protection for voluntary provision of information

15 U.S. Code § 32, 33 - Repealed.

15 U.S. Code § 32, 33 - Repealed.

15 U.S. Code § 32, 33 - Repealed.

§ 57c - Authorization of appropriations

15 U.S. Code § 32, 33 - Repealed.

15 U.S. Code § 32, 33 - Repealed.

§ 58 - Short title

Statutes at Large