30012: LC OQ Gradient Standard, 1 mLAcetone (67-64-1)
31053: LC OQ Wavelength Accuracy Standard , 5 mLErbium perchlorate (14017-55-1)
31068: LC OQ Linearity Kit*31054: Methanol, neat, 1 mL/ampul
31055: Ethyl paraben and propyl paraben, 5 µg/mL each in methanol, 1 mL/ampul
31056: Ethyl paraben and propyl paraben, 10 µg/mL each in methanol, 1 mL/ampul
31057: Ethyl paraben and propyl paraben, 15 µg/mL each in methanol, 1 mL/ampul
31058: Ethyl paraben and propyl paraben, 20 µg/mL each in methanol, 1 mL/ampul
31059: Ethyl paraben and propyl paraben, 25 µg/mL each in methanol, 1 mL/ampul
*Components of the LC linearity kit (cat.# 31068) are not available for individual sale.
To access certificate and SDS documentation for individual reference standards, visit 
www.restek.com/documentation