Animal feeding stuffs. Determination of phytase activity1 Scope This International Standard specifies the determination of phytase activity in feed samples. The method does not distinguish between phytase added as a feed additive and endogenous phytase already present in the feed materials. The method cannot be used to evaluate or compare the in vivo efficacy of the phytase product. It is not a predictive method of the in vivo efficacy of phytases present on the market as they can develop different in vivo

The recommended measuring methods to verify whether the requirement has been fulfilled

allowing for thermal expansion in service

BS EN 14209 provides the assessment and verification of constancy of performance of the products

which require protocol mechanisms to be specified

PD IEC/TR 63061 will further encourage trade

This standard is not intended for pressure purposes

and strongly affects its properties

The profilometers may be of any operational type

Added Clause 3

you can improve your quality management systems by adopting best industry practices for conformance and qualification inspection and exhibiting compliance with BS EN 61249-4-15 requirements

NOTE 3 For apparatus used for safety applications with SIL-requirements higher than 1 EN 50402 is applicable

— Method 2: Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in a phosphoric acid based solution with prior acid treatment