Приборы для измерения времени. Условия контроля радиолюминесцентных покрытий
Название (англ.):
Time measurement instruments; Conditions for carrying out checks on radioluminescent deposits
Описание (англ.):
Supplements ISO 3157, in particular clause 5 of that document 'Specifications and test methods for radioluminescent deposits'. The checks are concerned with the colours, the specific luminous intensity and resistance to ageing as well as adhesion and insolubility. The certificate of conformity is characterized.