The standard specifies test methods for the analysis of caustic soda (sodiumhydrate) and caustic potassium (potassium hydroxide) to ensure that the mass of these chemicals is suitable for their intended use. This includes the analysis of caustic soda and caustic potassium in liquid and solid forms, covering parameters such as alkalinity, carbonic acid salts, chlorides, iron and sulfate. The standard is expressed in SI units and requires users to understand relevant safety data and handling measures before testing to ensure the safety and accuracy of the analysis process.