Inspection: At least once a year the master links must be inspected by a competent person. Abrasion must not exceed more than 10 % of the original measurements. Overloaded master links must be taken out of use. Aggressive chemicals: The master links should not be used in acid solutions nor in heavily acid laden atmospheres, e.g. over or in close proximity to a pickling bath. The grade 100 steel may be susceptible to embrittlement when exposed to acids. Attention: Galvanization should just be carried out under supervision of the manufacturer. - Temperatures: Without reduction of working load the master links may be used within the range of -40°C and +200°C . Within the range of +200°C and +300°C the working load should be reduced by 10 % and from +300°C to +400°C  by 25 %. Once returned to normal temperatures the full working load can applied again. It is not permitted to use the master links above +400°C.