BS PD CEN/TS 17403:2021
Fertilizers. Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7,5 at 100 °C
RP-580
Methods of Measuring the Solubility and Viscosity of Lubricating Oil/Refrigerant Mixtures at High Discharge Pressures and Temperatures