This document provides a catalog of GOST certifications for various regulations that are available to order. It lists 13 different regulations by their RD number, status as available, format as electronic PDF, order number, and languages available. It notes that the price can be obtained by contacting the seller and inquiring about discounts. The regulations cover topics like measurement methods for concentrations of nuclear polycyclic aromatic hydrocarbons in water and Russia's imports and exports.