RECOMMENDATION ITU-R BS.1284 - Methods for the subjective assessment of sound quality ...
ANNEX 1 
1 General
2 Experimental design
3 Selection of the listening panel
4 Test method
    4.1 Grading scales
    4.2 Test procedure
5 Attributes
    5.1 Basic audio quality
    5.2 Attributes specifying the quality of two-channel stereophonic and multichannel sound ...
    5.3 Attributes specifying the relationships between sound and accompanying picture
    5.4 Main attributes for the absolute assessment of sound quality in detail
    5.5 Attributes specifying quality of digital transmitted/coded sound in detail
6 Programme material
7 Reproduction devices
    7.1 Tests which do not include the loudspeakers (or headphones) as part of the system under ...
    7.2 Tests which include the loudspeakers (or headphones) as part of the system under test
8 Listening conditions
9 Statistical treatment of data
10 Presentation of results
11 Contents of test reports
ANNEX 2