BS EN 492:2004 pdf free.Fibre-cement slates and fittings — Product specification and test methods.
BS EN 492 lt applies to fibre-cement slates with a height dimension h (see Clause 4) not exceeding 850 mm foroverlapping assembly.For the purpose of this standard, fibre-cement slates have been classified according totheir bending moment.
This document covers fibre-cement slates reinforced with fibres of different types as specified in 5.1.1.
This standard does not include calculations with regard to works, design requirements, installation techniques,wind uplift or rain proofing of the installed products.
The following referenced documents are indispensable for the application of this document. For datedreferences，only the edition cited applies. For undated references，the latest edition of the referenceddocument (including any amendments) applies.
EN 197-1, Cement – Part 1:Composition, specifications and conformity criteria for common cementsENV 1187:2002,Test methods for external fire exposure to roofs
EN 13501-1，Fire classification of construction products and building elements – Part 1: Classification usingtest data from reaction to fire test
EN 13823, Reaction to fire tests for building products—Building products excluding floorings exposedto the thermal attack by a single burning item
EN ISO 1716,Reaction to fire tests for building products -Determination of the heat of combustion(ISO 1716:2002)2
ISO 390, Products in fibre-reinforced cement – Sampling and inspection
ISO 2602, Statistical interpretation of test results – Estimation of the mean – Confidence interval
ISO 2859-1，Sampling procedures for inspection by attributes – Part 1: Sampling schemes indexed byacceptance quality limit (AQL) for lot-by-lot inspection
ISO 3951, Sampling procedures and charts for inspection by variables for percent non-conforming.
type test test carried out to demonstrate conformity with the requirements of this standard or for the approval of a newproduct and/or when a fundamental change is made in formulation andor method of manufacture, the effectsof which cannot be predicted on the basis of previous experience. The test is performed on the as deliveredproduct, but is not required for each production batch.
acceptable quality level (AQL) quality level which in a sampling plan corresponds to a specified, relatively high probability of acceptance. lt isthe maximum percent defective (or maximum number of defects per 100 units) that for purposes of sampling inspection can be considered satisfactory as a process average.BS EN 492 pdf download.