scope:

The scope of this standard covers a method of test for measuring the humidification rate of central-system residential humidifiers intended for use with forced-warm-air heating and/or cooling systems.

This method of test describes the test apparatus, mode of test conduction, and information to be recorded.

Tests covered include methods for measuring electrical power input, water flow rate, water temperature, and water pressure to the test humidifier. Also included are airflow rate, static pressure, temperature, and relative humidity entering and maintained by the test apparatus.

Information resulting from the application of this test method is intended for use by manufacturers, specifiers, installers, and users of central-system residential humidifiers.

This test method does not apply to self-contained humidifiers, portable humidifiers, or humidifiers for commercial and industrial applications.

PURPOSE

This standard establishes a uniform method of laboratory testing for rating central-system residential humidifiers.