Category: EN standards

1 Scope This European Standard defines the methods of tests for the determination of the characteristics of crude tar and crude benzole. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN […]

1Scope This European Standard is thetermilinology part of a series for thePrevention’ ofcrime by urbanplanning and building design. Forsome spocilic terms usod in theother parts,dealing woith urbanplanining. dwellings，shops and offices. it provides equivalent termsinthree ‘languages.as well asdetinitions. 2Normative references Not applicable. 3Terms and definitions 3.1 access control setoftechniques,means,procedures allowing’ levels ofaocess .rights and optionally thetraceability of acoess to a site […]

6.6 Filter 6.6.1 General The filter media is that part of the system which influences the differential pressure used as the basic data for determining the results of the test. The differential pressure increase is dependent on the retention characteristics of the filter media. In order to have comparable results it is important that the filter media is defined in […]

1 Scope This part of EN 1 3566, read in conjunction with EN 1 3566-1 , specifies requirements and test methods for pipes that are formed on site by spirally winding and jointing a pre-manufactured profiled plastics strip using a dedicated winding machine in front of the open end of an existing pipeline (e.g. in a manhole). The pipes thus […]

1 Scope This European Standard specifies requirements for limiters (or limiting devices) which are incorporated into safety systems for shell boilers as defined in EN 1 2953-1 . A limiter (or limiting device) can be either: a safety accessory as defined in the Pressure Equipment Directive, Article 1 , clause 2.1 .3, and needs to include the safety logic and […]

4.2 Documentation requirements 4.2.1 General EN ISO 9001 :2000, 4.2.1 and the following additional requirements apply. A company profile shall be available with the following key elements: General data: a) Name and address of head office; b) Legal company status; c) Line of business. Data concerning the transport of dangerous goods: d) Name and address of any other depots and […]

1 Scope This standard describes the methods for the analysis of all refractory products containing nitride and oxynitride bonded silicon carbide, irrespective of the silicon carbide level. It includes details of sample preparation, general principles of chemical analysis and detailed methods for the determination of carbon,silicon carbide, free aluminium, free silicon, total nitrogen and oxygen. 2 Normative references The following […]

1 Scope This European Standard applies to steel castings: for structural uses in buildings and civil engineering works. Its uses include housing and service buildings,bridges, roads, pipe network. In cases where castings are joined by welding by the founder, this European Standard applies. This European Standard does not apply in cases where castings are welded: to wrought products (plates, tubes, […]

1 Scope This European Standard specifies requirements for continuously hot-dip zinc (Z), zinc-iron alloy (ZF), zincaluminium alloy (ZA), aluminium-zinc alloy (AZ) and aluminium-silicon alloy (AS) coated flat products made of steels with high yield strength for cold forming (see Tables 1 and 3) with thicknesses up to and including 3,0 mm unless otherwise agreed. The thickness is the final thickness […]

1 Scope This European Standard specifies the requirements for thread form, dimensions, tolerances and designation for jointing pipe threads, sizes 1 /1 6 to 6 inclusive, for joints made pressure-tight by the mating of the threads. These threads are taper external and taper internal and are intended for use with pipes suitable for threading and for valves, fittings or other […]