ASDs are available ONLY for certified Apple technicians but… if you search persistently you can find them on the Internet.
The following list will help to figure out which ASD test your machine requires.
ASD 3S108
iMac (Early 2006 17-inch)
iMac (Early 2006 20-inch)
MacBook Pro (17-inch)
Mac mini (Early 2006)
MacBook (13-inch)
iMac (Mid 2006 17-inch)
iMac (17-inch Late 2006)
iMac (17-inch Late 2006 CD)
iMac (20-inch Late 2006)
iMac (24-inch)
ASD 3S116
DE2EE528947E43FC1D21DB7BBCFE0AF84136D6B4
MacBook (13-inch Mid 2007)
MacBook Pro (15-inch Core 2 Duo)
MacBook Pro (17-inch Core 2 Duo)
MacBook (Late 2006)
MacBook Pro (15-inch 2.4/2.2GHz)
MacBook Pro (17-inch 2.4GHz)
iMac (24-inch Mid 2007)
iMac (20-inch Mid 2007)
Mac mini (Mid 2007)
ASD 3S123
B71305E6A43037122FEAB1BA4DB0C56C29FD5709
iMac (20-inch Early 2008)
iMac (24-inch Early 2008)
MacBook (13-inch Early 2008)
MacBook Pro (15-inch Early 2008)
MacBook Pro (17-inch Early 2008)
Mac Pro (Early 2008)
MacBook (13-inch Late 2007)
ASD 3S132
23a5ef61045f816664971b5e94213a4798f70df8
MacBook Air (Late 2008)
MacBook (13-inch, Aluminum, Late 2008)
MacBook Pro (15-inch, Late 2008)
MacBook (13-inch, Early 2009)
MacBook Pro (17-inch, Early 2009)
iMac (20-inch, Early 2009)
iMac (24-inch, Early 2009)
Mac Mini (Early 2009)
Mac Pro (Early 2009)
iMac (20-inch, Mid 2009)
MacBook Air (Mid 2009)
MacBook (13-inch, Mid 2009)
MacBook Pro (13-inch, Mid 2009)
MacBook Pro (17-inch, Mid 2009)
MacBook Pro (15-inch, Mid 2009)
MacBook Pro (15-inch, 2.5.3GHz, Mid 2009)
ASD 3S135
7aeb2eab071b9fe516beaac20ca13411140229ff
MacBook (13-inch, Late 2009)
iMac (21.5-inch, Late 2009)
iMac (27-inch, Late 2009)
Mac mini (Late 2009)
ASD 3S138
56990eafd2a16d39fb1350dcd53a47c30644b704
MacBook (13-inch, Mid 2010)
MacBook Pro (13-inch, Mid 2010)
MacBook Pro (17-inch, Mid 2010)
MacBook Pro (15-inch, Mid 2010)
MacBook (13-inch, Late 2009)
iMac (21.5-inch, Late 2009)
iMac (27-inch, Quad Core, Late 2009)
Mac mini (Late 2009)
ASD 3S139
6755B61C5A034192E0C89CE182BC289D877AE70D
A7982704FA92E6686331A075F3AF286E490D09BC
Mac mini (Mid 2010)
ASD 3S140
F91CFDC63B80D0A56E271B4A0F1C95CE5C7FD903
iMac (21.5-inch, Mid 2010)
iMac (27-inch, Mid 2010)
ASD 3S142
A5EC1A45D867170B9D91AF4C3DAFEFFBB213088A
MacBook Air (13-inch, Late 2010)
MacBook Air (11-inch, Late 2010)
ASD 3S143
24B9D4856AA60585B25893B3E1528914D388AFF3
Mac Pro (Mid 2010)
ASD 3S144
A23E7F6B49C61BBD3FC34D88465856DEAC07A54B
MacBook Pro (13-inch, Early 2011)
MacBook Pro (15-inch, Early 2011)
MacBook Pro (17-inch, Early 2011)
ASD 3S145
F27B5F502DD65B7E5724B6A1378253F156B73721
iMac (27-inch, Mid 2011)
iMac (21.5-inch, Mid 2011)
ASD 3S146
962AB990F12003D517D7DE5ADF08ADC767210FB6
MacBook Air (13-inch, Mid 2011)
MacBook Air (11-inch, Mid 2011)
Mac mini (Mid 2011)
ASD 3S147
6E96A94CAB5302A052F0669E30621A6A04721795
iMac (21.5-inch, Late 2011)
ASD 3S148
308D6A6849CE2E4CA0E3334FB22CD9DBE852D2B4
MacBook Pro (13-inch, Late 2011)
MacBook Pro (15-inch, Late 2011)
MacBook Pro (17-inch, Late 2011)
ASD 3S150
518935C1E3B64F165A0C2181051872BC808D85FA
MacBook Pro (13-inch, Mid 2012)
MacBook Pro (15-inch, Mid 2012)
MacBook Pro (Retina, Mid 2012)
MacBook Air (11-inch, Mid 2012)
MacBook Air (13-inch, Mid 2012)
ASD 3S152
183399A47353C3EA5BCED9A79589D75DFD0DA3B6
615DD05E7CCC57F3DC1F527D9407ADA10012B4D1
iMac (27-inch, Late 2012)
iMac (21.5-inch, Late 2012)
Mac mini (Late 2012)
Mac mini Server (Late 2012)
MacBook Pro (Retina, 13-inch, Late 2012)
ASD 3S155
MacBook Pro (Retina, 15-inch, Early 2013)
MacBook Pro (Retina, 13-inch, Mid 2012)
MacBook Pro (Retina, 13-inch, Early 2013)
iMac (21.5-inch, Early 2013)
MacBook Pro (13-inch, Mid 2012)
MacBook Pro (15-inch, Mid 2012)
MacBook Pro (Retina, Mid 2012)
MacBook Air (11-inch, Mid 2012)
MacBook Air (13-inch, Mid 2012)
ASD 3S156
B7EA48DB355B6EE314C2734FC69F9E97F27B212A
MacBook Air (11-inch, Mid 2013)
MacBook Air (13-inch, Mid 2013)
ASD 3S159
Mac Pro (Late 2013)
ASD 3S162
MacBook Pro (Retina, 13-inch, Late 2013)
MacBook Pro (Retina, 15-inch, Late 2013)
MacBook Pro (Retina, 13-inch, Mid 2014)
MacBook Pro (Retina, 15-inch, Mid 2014)
This is as complete a reference as I am inclined to make and is untrustworthy at best
