supply of 1) standard oil s-21, 50 ppm, suitable to oil spectrometer machine of make gnr rotroil, italy, in cans of 200 grams. qty: 01x200 grams(all supplies should have a shelf life of at least 12 months from the date of supply.) 2) standard oil s-21, 10 ppm, suitable to oil spectrometer machine of make gnr rotroil, italy in a container of 200 grams. (product should have a shelf life of at least 12 months from the date of supply.) 3) standard oil s-21, 900 ppm, suitable for oil spectrometer machine of make gnr rotroil, italy in container of 200 grams. (product should have a shelf life of at least 12 months from the date of supply.) 4) 0 ppm standard oil for calibration and standardization of spectromachine ( spectroil m) in a 400-gram container ( blank oil 75 cst ). total of 800 grams (2 containers of x 400 grams each )(all supplies should have a shelf life of at least 12 months from the date of supply.)1) standard oil s-21, 50 ppm, suitable to oil spectrometer machine of make gnr rotroil, italy, in cans of 200 grams. qty: 01x200 grams(all supplies should have a shelf life of at least 12 months from the date of supply.) 2) standard oil s-21, 10 ppm, suitable to oil spectrometer machine of make gnr rotroil, italy in a container of 200 grams. (product should have a shelf life of at least 12 months from the date of supply.) 3) standard oil s-21, 900 ppm, suitable for oil spectrometer machine of make gnr rotroil, italy in container of 200 grams. (product should have a shelf life of at least 12 months from the date of supply.) 4) 0 ppm standard oil for calibration and standardization of spectromachine ( spectroil m) in a 400-gram container ( blank oil 75 cst ). total of 800 grams (2 containers of x 400 grams each )(all supplies should have a shelf life of at least 12 months from the date of supply.),0 ppm standard oil for calibration and standardization of spectromachine ( spectroil m) in a 400-gram container ( blank oil 75 cst ). total of 800 grams (2 containers of x 4