Paper and board. Determination of opacity (paper backing). Diffuse reflectance method Ingestion-build-82396 Its guidance might also be

Its guidance might also be relevant to organizations who manage telesales activities on behalf of clients

test results are reported for several hundred flawed cylinder burst tests that were conducted on seamless steel cylinders ranging in tensile strength from less than 750 MPa up to about 1 400 MPa

Reformatting of text to bring it in line with current IEC document format

Addition of a new annex b (informative)

It gives recommendations for establishing good practice in the implementation of Smart Working

Paper and board. Determination of opacity (paper backing). Diffuse reflectance method Ingestion-build-82396 Its guidance might also be1 Scope This International Standard specifies a method for the determination of the opacity (paper backing) of paper by diffuse reflectance. It can be used to determine the opacity of papers or boards which contain fluorescent whitening agents, provided the UV content of the radiation incident on the test piece has been adjusted to conform to that in the CIE illuminant C using a fluorescent reference standard provided by an ISO TC 6 authorized