Kothea was recently asked: do sheer fabrics have a rub test?
The Martindale rub test is an abrasion test. It mimics the wear a fabric experiences when used on upholstered seating. Any fabric can be put through the test procedure.
Sheer fabrics are used for curtains and blinds, not for upholstery. So the answer is no. A rub test is not relevant to sheer fabrics because they are not used on sofas.
For sheer fabrics and contract curtains the most important performance test is for flame retardancy. If you need guidance on fire rating standards for curtain fabrics, contact Kothea directly.
Of course you COULD test a sheer to find their rub test result. You could test literally ANY fabric. Most sheers would have a VERY low score.