BS 4060:2006 pdf free.Pressed wool felts -Specification.
BS 4060 This British Standard specifies requirements for general purpose feltsincluding packaging felts,and decorative felts and precision felts.Methods of test for chemical and physical properties are given innormative annexes C and D, respectively.
This standard applies to either white felt or grey felt, with a minimumwool content of 75%,90% or 97%, except for A97/7D felt, which is dyed(see Table 1).
The following referenced documents are indispensable for the application of this document. For dated references, only the editioncited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
BS 572,Specification for interchangeable conical ground glassjoints.
BS 1752:1983,Specification for laboratory sintered or fritted filtersinclding porosity grading.
BS 2087-1, Preservative textile treatments – Part 1 : Specificationfor treatments.
BS 8459, Determination of extractable matter in textiles – Method.BS 3591, Specification for industrial methylated spirits.
BS 4407:1988, Methods for quantitative analysis of fibre mioctures.BS 4475:2000,Specification for straight mineral lubricating oils.BS 4736,Method for determination of dimensional changes offabrics induced by cold-water immersion.
If felts are required to have particular chemical properties, the felts shallconform to the relevant requirements of Table 6. NOTE 1 The manufacturer should quevy the purchaser as to whetherthere are any particular chemical properties that are vequired (see Annex A).
NOTE 2 For MOD purposes, general purpose felts and felts for aerospacepurposes should conform to 6.1,6.3 and Table 6. The tests outlined in Annex C shall be used to determine the woolcontent of felts.
If felts are required to have particular physical properties, such asbreaking strength and oil retention, they shall conform to the relevantrequirements of Table 7.
NOTE The purchaser should specify whether any particular physicalproperties are required (see Annex A).
The tests outlined in Annex D shall be used to determine the physicalproperties of the felts.
Felts shall be manufactured either with or without special finishesimparting, for example, rot, mildew, moth, flame or water resistance, ora combination of these properties.BS 4060 pdf download.