Testing fresh concrete - Self-compacting concrete. J-ring test1 Scope This European Standard specifies the procedure for determining the passing ability (measured by the blocking step), the flow spread and t500J flow time of self compacting concrete as the concrete flows through the J ring. The test is not suitable when the maximum size of aggregate exceeds 40 mm. NOTE In respect to the relationship between aggregate size and bar spacing, the test is intended to assess the passing ability of the concrete

The IET Wiring Regulations Seventeenth Edition

2  Terms and definitions

ISO 11073-10425 is a part of a multi-series standard that covers medical devices in health informatics

of necessity

This standard has been prepared in accordance with EN 4500-5

This part of ISO 6591 fixes the description and the dimensional designation of empty paper sacks and specifies the method of measuring those dimensions

3 Direction of approach angled to the detection zone

The process of determining which uses of resources within an Open System environment are permitted and

• daily mean temperatures in the component exceed 50 °C

Air cleaners

BS EN IEC 61051-1 provides generic specification and is applicable to varistors with symmetrical voltage-current characteristics for use in electronic equipment

For reference by higher education establishments