Preparation of steel substrates before application of paints and related products. Tests for the assessment of surface cleanliness - Field method for the refractometric determination of moisture Ingestion-build-137917 BS 5421-2 states a method

BS 5421-2 states a method that is intended to determine the resistance of polyurethane thread to discolouration when exposed to oxides of nitrogen in a test chamber

3 Phase angle errors

additional requirements are specified by the national health authorities

BS EN 868‑8 on  requirements and test methods for re-usable sterilization containers for steam sterilizers is useful for:

Preparation of steel substrates before application of paints and related products. Tests for the assessment of surface cleanliness - Field method for the refractometric determination of moisture Ingestion-build-137917 BS 5421-2 states a method1 Scope This part of ISO 8502 describes a field method for the assessment of moisture, usually caused by condensation of water, on steel surfaces prior to application of paint. The method can be used on flat and slightly curved horizontal and vertical surfaces. The assessment should not be done on surfaces that are exposed to any falling water, e. g. rain, or condensation. The lowest surface moisture (water) level that can be detected by the method is