BS PD ISO/TR 21958:2019

Ophthalmic optics. Review of the test methods used to assess scratch and abrasion resistance of spectacle lenses

BSI Group, 09/19/2019

Publisher: BS

File Format: PDF

$125.00$251.46


Published:19/09/2019

Pages:26

File Size:1 file , 2.5 MB

Note:This product is unavailable in Ukraine, Russia, Belarus

This document describes the most commonly used test methods considered in standardization work relating to scratch and abrasion resistance of plastic spectacle lenses along with their technical capacities and limitations. It includes the ISO test method for assessment of claims for basic abrasion resistance in ISO 8980-5.

This document is intended to be of benefit to any future interest in ISO standardization on scratch and abrasion resistance of spectacle lenses.

Cross References:
ISO 8980-5:2005
ISO 19252:2008
ASTM D7027 - 13
ASTM D1044 - 13
ASTM D1003 - 13
ISO 9211-4:2012


All current amendments available at time of purchase are included with the purchase of this document.

More BS standard pdf

BS 5268-7.6:1990

BS 5268-7.6:1990

Structural use of timber. Recommendations for the calculation basis for span tables. Purlins supporting rafters

$60.00 $121.92

BS 4F 57:1990

BS 4F 57:1990

Specification for scoured cotton fabric for inflatable equipment for aerospace purposes

$76.00 $152.40

BS 7252-6:1990

BS 7252-6:1990

Metallic materials for surgical implants-Specification for wrought cobalt-nickel-chromium-molybdenum alloy

$125.00 $251.46

BS 397-2:1989

BS 397-2:1989

Primary batteries-Specification sheets

$226.00 $452.12