2013DIN 51820:2013-12 Testing of lubricants - Analysis of greases by infrared spectrometer - Recording and interpretation of an infrared spectrum / Note: Applies in conjunction with DIN 51451 (2004-09).
1970DIN 51820 E:2013-05 Testing of lubricants - Analysis of greases by infrared spectrometer - Recording and interpretation of an infrared spectrum
2013DIN 51820:2013 Testing of lubricants - Analysis of greases by infrared spectrometer - Recording and interpretation of an infrared spectrum
1970DIN 51820 E:2012-08 Testing of lubricants - Analysis of greases by infrared spectrometer - Recording and interpretation of an infrared spectrum
1989DIN 51820-1:1989 Testing of lubricants; analysis of greases by infrared spectrometry; taking and evaluating an infrared spectrum