Toimialayhteisöt

This document specifies the requirements for safety systems which protect a vessel, a system of vessels, piping, accessories or assemblies from exceeding operating conditions.It is also applicable to safety related indicators and alarms, signals and warning devices when used in safety systems.Equipment connected together by piping of adequate capacity, free from potential blockages and which does not contain any valve that can isolate any part from the safety system, may be considered as a single pressure system when considering the requirements for overpressure protection.Safety systems include the interconnections between the equipment to be protected and any discharge location. This location can either be an outlet to atmosphere or the entry into a closed disposal system.NOTE The scope of this document and its relationship to the safety accessories and other protective devices described in the Pressure Equipment Directive are shown in Annex E.

This European Standard specifies the method for the strength calculation of the shell with respect to internal pressure of the valve.

This document defines classification criteria, test conditions and test procedures for performance testing of packaged refrigerating units for stationary cold room applications. This includes ductless units for cold storage applications at medium temperatures (MT) and low temperatures (LT) in either compact or split designs, fitted with electrically driven compressors, which work according to the vapour compression cycle.

This International Standard describes simplified methods for taking samples of solid biofuels in smallscale applications and stores including preparation of sampling plans and certificates. Usually the focusis on stores with a size of 100 t. The standard is applicable to the following solid biofuels:- fine (up to about 10 mm nominal top size) and regularly-shaped particulate materials that can besampled using a scoop or pipe, e.g. sawdust, olive stones and wood pellets;- coarse or irregularly-shaped particulate materials (up to 200 mm nominal top size) that can besampled using a fork or shovel, e.g. wood chips, hog fuel and nut shells;- large pieces (above 200 mm nominal top size) which are picked manually (e.g. firewood andbriquettes);It may be possible to use this standard on other solid biofuels. The methods described in thisInternational Standard may be used, for example, when a sample is to be tested for moisture content,ash content, calorific value, bulk density, mechanical durability, particle size distribution, ash meltingbehaviour and chemical composition.This International Standard can be used also for applications and stores > 100 t if the involved parties,e.g. provider and consumer of a biofuel, agree with.For sampling in general, if higher precision of analytical results are needed or in doubt if this standardis applicable ISO 18135 should be used.