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The systems of reference constitute a beneficial means of achieving the following objectives:
The term “liquid” in this code of practice includes any contained or excluded aqueous liquids but excludes aggressive liquids
It establishes a comprehensive number coding system suitable for all dental rotary instruments by use of a 15-digit code number identifying general and specific characteristics of instruments or groups of instruments
Service delivery processes
Pneumatic and hydraulic power
Ladders - Specification for requirements, testing, marking Ingestion-build-181247 The systems of reference constituteThis European Standard specifies the general design features, requirements and test methods for ladders. This standard applies to portable ladders. It specifies requirements for types of ladders previously covered by BS 1129 and BS 2037. In addition it is concerned with sectional ladders, mobile ladders and combination ladders not previously covered by British Standards. Ladders for special professional use, such as fire brigade ladders and mobile