Lovibond Red, Yellow, Blue Filter Set

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Part Number 187000

A set of ten glass conformance filters for checking a Model F (BS684) in Lovibond RYBN scale.

Conformance filters are assigned a nominal value and the company always endeavours to match this value as closely as possible. On occasion, because of the unique manner of the glass making process, it may not be possible to match the requested values exactly. The values achieved and the performance tolerances expected will, of course, always be reported.
Glass Standard Values Approximate Values
  • 0.6R 1.0Y 0.6B - 7.3R 51Y 1B
Filters 10
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  • Lovibond RYBN 0.6R 1.0Y 0.6B filter
  • Lovibond RYBN 1.1R 2.1Y 0.8B filter
  • Lovibond RYBN 1.4R 3.4Y 0.8B filter
  • Lovibond RYBN 1.9R 4.3Y 1.0B filter
  • Lovibond RYBN 2.3R 7.3Y 1.0B filter
  • Lovibond RYBN 2.9R 9.7Y 1.1B filter
  • Lovibond RYBN 4.3R 17.1Y 1.0B filter
  • Lovibond RYBN 4.7R 19.0Y 0.9B filter
  • Lovibond RYBN 5.6R 31.0Y 1.0B filter
  • Lovibond RYBN 7.3R 51.0Y 1.0B filter
  • Certificate of conformity