Substances and mixtures that have a harmful effect on humans or the environment are referred to as hazardous substances. They are subject to many laws and regulations on labeling, classification and handling. Especially in the workplace, knowledge of these regulations is elementary. Read this blog post to learn what hazardous materials are, what proper hazardous material labeling looks like, and why it's so important.
A refractometer is used to determine the refractive index of transparent materials. Depending on the type of sample, different versions of these instruments come into question, which must be specially calibrated. In this blog post, you can read about the differences between the models, how refractometers are calibrated, and what to look out for in terms of calibration liquid and interval.
Substances, articles and mixtures with potentially hazardous properties must be labeled accordingly according to current legislation. This is the responsibility of the GHS, which provides the classification and labeling obligation with hazard symbols. We have summarized the meaning of the hazard symbols and hazard pictograms, the criteria used to distinguish between them, and the status of supplementary signal words, H and P phrases.
Hazardous substances are substances, materials and products that can have a harmful effect on health and/or the environment. In fact, a whole range of such substances fall into this category - they range from gasoline to cleaning agents to hydrogen peroxides. How these substances are defined, which hazard designation and classification is necessary and which known examples of hazardous substances there are, we have summarized for you here in compact form.