[1] Natl Measurement Inst, Lindfield, NSW 2070, Australia
[2] Stand Prod & Innovat Board, Singapore, Singapore
[3] Ind Res Ltd, Measurement Stand Lab, Lower Hutt, New Zealand
[4] Ctr Measurement Stand, Hsinchu, Taiwan
[5] PUSLIT KIM LIPI, Serpong, Tangerang, Indonesia
[6] Korea Res Inst Stand & Sci, Yusong, Daejeon, South Korea
[7] Natl Inst Metrol, Beijing, Peoples R China
[8] Natl Inst Metrol Thailand, Bangkok, Thailand
[9] Natl Metrol Inst Japan, Tsukuba, Ibaraki, Japan