Ophthalmic optics. Specifications for ready-to-wear spectacles Ingestion-build-126766 The tear force measured is

The tear force measured is the force required to propagate the previously started double tears when the force is applied parallel to the cuts and the fabric tears in the direction of the applied force

The requirements apply to single-core

Misalignment tolerances in punched metal plate fastener joints

8 Guarding

It is applicable to self-propelled wheel or crawler earth-moving machines as defined in ISO 6165

Ophthalmic optics. Specifications for ready-to-wear spectacles Ingestion-build-126766 The tear force measured is1 Scope This European Standard specifies the minimum requirements for complete ready to wear spectacles. These are not intended for regular use without the approval of an eye care professional.