The standard for certifying protective gloves against mechanical risks. The numbers under the shield represent (L to R) resistance to abrasion, cut (coup test), tear and puncture.
The standard for gloves to protect against thermal risks. The numbers indicate the glove’s performance for (1) material fire properties, (2) contact heat, (3) convective heat, (4) radiant heat, (5) small splashes, and (6) large quantities of molten metal. The higher the number the better the performance.