Solution A: Ammonium Hydroxide, Aqueous 250 ml, Solution B: Ammonium Oxalate, Aqueous 250 ml. Newcomer Supply Decalcification End Point Set uses a chemical testing method for detecting the presence of calcium released from bone and determining the completion point of the bone decalcification process. This procedure will assist to avoid over decalcification, a common cause of loss of specimen morphology and limit the decalcifying process to what is needed to maintain a high quality specimen. Decalcification End Point Set can be used with either acid or chelating decalcifying agents. Shelf Life is 1 year from date of manufacture. Store at 15-30°C.