Free Standards Download

ANSI AHRI-280-2008 pdf download Requirements for the Qualification of Reverberation Rooms in the 63 Hz Octave Band 1.1 Purpose. The purpose of this standard is to establish a method of qualifying reverberation rooms in the 63 Hz...

ANSI AHRI-300-2008 pdf download Sound Rating and Sound Transmission Loss of Packaged Terminal Equipment 3.6.1 Application Rating. A rating based on tests performed at application Rating Conditions (other than Standard Rating Conditions). 3.6.2 Standard Rating. A rating...

ANSI-AHRI-430-2009 pdf download Performance Rating of Central Station Air-Handling Units 1.1 Purpose. The purpose of this standard is to establish for Central Station Air-Handling Units: definitions; classifications; test requirements; rating requirements; minimum data requirements for Published Ratings;...

ANSI-AHRI-440-2008 pdf download Performance Rating of Room Fan-Coils 3.6 Published Rating. A statement of the assigned values of those performance characteristics, under stated Rating Conditions, by which a unit may be chosen to fit its application. These...

ANSI AHRI-1160-2008 pdf download Performance Rating of Heat Pump Pool Heaters 1.1 Purpose. The purpose of this standard is to establish for Heat Pump Pool Heaters: definitions; classifications; test requirements; rating requirements; minimum data requirements for Published...

ANSI CTA-775.2-A-2008 pdf download Service Selection Information for Digital Storage Media Interoperability 1. INTRODUCTION CEA-775-C standardizes the IEEE 1 394 High Performance Serial Bus interface for the Digital Television (DTV) receiver. A digital storage device such as...

ANSI AMCA-320-2008pdf download Laboratory Methods of Sound Testing of Fans Using Sound Intensity 4.3 Frequency analyzer An octave band or one-third octave band filter set shall meet or exceed the Order 3, Type 1 -D, requirements of...

ANSI CTA-2018-2008 pdf download Task Model Description (CE TASK 1.0) 2.1 Task Model Description Conformance of task model descriptions is relevant to authors of task model descriptions, because it allows a task model description to be used...

ANSI CTA-2031-2008 pdf download Testing and Measurement Methods for Mobile Loudspeaker Systems 4.3.1.1 Test Conditions and Equipment The DUT shall be tested in free air in accordance with the test procedures for power compression, distortion and accelerated...

ANSI E1.11-2008 pdf download American National Standard ANSI E1.11 – 2008 (R2018) Entertainment Technology—USITT DMX512-A Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories 4.4 DMX512 ports A DMX512 Port is the signal connection...