GOST 22720.4-77

State system for ensuring the uniformity of measurements. pH measuring. Standard-titres material dose for making 2nd class standard buffer solutions. Specifications

Wheel for railway stock. Methods of residual stress determination

Non-destructive testing of welds. Ultrasonic testing. Use of time-of-flight diffraction technique (TOFD)

Urine-absorbing aids for incontinence. Test methods for characterizing polymer-based absorbent materials. Part 6. Gravimetric determination of fluid retention capacity in saline solution after centrifugation

Sodium thiocyanate. Specifications

Leather. Chemical tests. Preparation of chemical test samples