This standard specifies the naming rules, technical requirements, inspection methods, inspection rules and signs, accompanying documents, packaging and storage of rail straightness measuring instruments (hereinafter referred to as "straightness instruments"). This standard applies to the manufacture and inspection of straightness meters.
TB/T 3323-2013 Referenced Document
GB 7247.1-2001 Safety of laser products Part 1: Equipment classification,requirements and user's guide
GB/T 18268.1-2010 Electrical equipment for measurement,control and laboratory use.EMC requirements.Part 1:General requirements
GB/T 191 Packaging.Pictorial marking for handling of goods
GB/T 2423.1 Environmental testing for electric and electronic products.Part 2:Test methods.Tests A:Cold