Methods for the petrographic analysis of coals - Method of determining maceral group composition1 Scope This part of ISO 7404 specifies a method for determining the proportions of the maceral groups (and the minerals, if desired) in coals. It is concerned only with determinations made on polished particulate blocks using incident white light. For lower rank coals, the additional use of the fluorescence mode is necessary to identify liptinites.

Using ISO 17034 you can specify general requirements for the competence and consistent operation of reference material producers

the UN Recommendations cover principles of classification and definition of classes

2 can cause considerable loss of efficiency and these matters should be carefully considered by the user when assessing the suitability for particular applications

and management of a security services provider and/or its independent branches and establishments under commercial law and trade as a provider about port and maritime security services

BS EN 267 also deals with the additional requirements for the burners in the scope with pressurized parts and/or firing pressurized bodies

BS EN 14037-1 provides you with the necessary guidance on the general requirements for prefabricated ceiling-mounted radiant panels for space heating

This part of IEC 61391 defines terms and specifies methods for measuring the maximum depth of penetration and the local dynamic range of real-time ultrasound B-MODE scanners

BS 5127 exemplifies the required dimensions and loads that help you achieve precision in terms of product functionality

Assessment and verification of constancy of performance (AVCP) on the compliance of geosynthetic barriers for use in the construction of reservoirs and dams are given in BS EN 13361

NOTE 3: PAS 2012-1 is limited to four-point strap-type tie-downs due to the lack of technical data to support the drafting of requirements for other

BS 8000-9:2003

BS ISO 5151 does not cover the determination of seasonal efficiencies which can be required in some countries because they provide a better indication of efficiency under actual operating conditions