SC2588 | Spruce powder IRMS standard for 15N, 13C & 18O – Pk/1 Sercon Group 6 years ago Spruce powder IRMS standard for 15N, 13C & 18O Pack Size: 3g Share this: Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook