Reference materials. Good practice in using reference materials1 Scope 1. 1 This Guide describes good practice in using reference materials (RMs), and certified reference materials (CRMs) in particular, in measurement processes. These uses include the assessment of precision and trueness of measurement methods, quality control, assigning values to materials, calibration, and the establishment of conventional scales. This Guide also relates key characteristics of various types of RMs to the different applications.

- Means of escape from flats and maisonettes

This module is both conformant with the requirements of this part of ISO/IEC 1539 and

Why should you use BS EN 61166 - High-voltage alternating current circuit-breakers

the sealing and the properties of the obtained anodic oxidation coatings

Why should you use BS EN 4103 - Nickel base alloy NI-B40002 for aerospace applications

9 Load carrying devices

This measuring method helps in improving the image quality of 3D display devices

With obedience and compliance to ISO 6721-9

Particular requirements for vacuum cleaners and water-suction cleaning appliances

BS EN 50136-1 provides best industry guidance on ATS configuration

The criterion of application for such purposes is dealt with by installation rules

in aluminium alloy