1. 1. ISO/Guide 33: 2015, “Reference Materials—Good Practice Using Reference Materials”, ISO/REMCO Committee on Reference Materials, Geneva, Switzerland.
2. 2. ISO/Guide 34: 2009, “General Requirements for the Competence of Reference Material Producers”, ISO/REMCO Committee on Reference Materials, Geneva, Switzerland.
3. 3. NMIJ Reference Materials, National Metrology Institute of Japan, https://www.nmij.jp/english/service/C/.
4. 4. ISO/Guide 35: 2006, “Reference Materials—General and Statistical Principles for Certification”, ISO/REMCO Committee on Reference Materials, Geneva, Switzerland.
5. 5. JIS K 2390, “Automotive Fuels—Fatty Acid Methyl Ester (FAME) as Blend Stock”, 2008, Japanese Standards Association.