Optics and photonics. Wavefront sensors for characterising optical systems and optical components1 Scope This Technical Report gives terms and definitions and describes techniques for the characterization of wavefronts influenced by optical systems and optical components. It describes basic configurations for a variety of wavefront sensing systems and discusses the usefulness of tests in different situations. The aim is to cover practical instruments and techniques for measuring the wavefronts produced by optical systems and optical components.

BS EN 4173 specifies the classification of lockbolts with a minimum tensile strength class of 1100 MPa and maximum operating temperature of 315°C

The limits of these surface irregularities are helpful to determine the extent of damage due to which product failure can occur

BS EN 419211-6 on protection profiles for secure signature creation device are useful for:

Annex B (normative) Calculation of Iodine Value

BS EN ISO 4945 specifies a spectrophotometric method for the determination of the nitrogen content of non-alloy and low-alloy steels

threads and appliques

This standard supersedes EN 12070:2000 which is now withdrawn

the design and manufacture of boilers requires the application of more than one Part in order for the requirements of the Standard to be fulfilled

Specifications check for machines driven over PTO shaft with mechanical or hydraulic power transmission

within the WAV

BS EN 3218-001 also provides details such as quality assurance

act as useful warnings and limit damage to premises