000 00306nam a2200073 4500
080 _a
_b
245 _aIS: 13129 (Part 2) - 1991; Solar heating - domestic water heating systems Part 2procedure for system performance characterization and yearly performance predication
700 _aBureau of Indian Standards
260 _aNew Delhi
_bBIS
_c1991
300 _a9p
999 _c33845
_d33845