Magnesium Std 10 000 ppm Mg Concentration 10 000 ppm CAS Number 7439-95-4 7697-37-2 7732-18-5 Chemical Container Material Plastic Chemical Container Type Bottle Chemical Grade ACS Chemical Container Size 500 mL Chemical Family Type Standards and Solutions Calibration Certificate NIST SRM 915 Shelf Life 18 mo Standards EPA 242.1