DIN 13-18:1987-01

1 Gauging of workpieces
      1.1 Gauging of external threads
      1.2 Gauging of internal threads
      1.3 Inspection gauging
             1.3.2 Gauging by the manufacturer
             1.3.3 Gauging by the purchaser
2 Use of gauges
      2.1 Gauges for workpiece external threads and their
             associated check plugs and setting plugs
             2.1.1 Solid or adjustable GO screw ring gauges
             2.1.2 GO and NOT GO screw check plugs for new
                      solid GO screw ring gauges
             2.1.3 Setting plugs for adjustable GO screw
                      ring gauges
             2.1.4 Wear check plugs for solid or adjustable
                      GO screw ring gauges
             2.1.5 GO screw calliper gauges
             2.1.6 Setting plugs for GO screw calliper
                      gauges
             2.1.7 NOT GO screw calliper gauges
             2.1.8 Setting plugs for NOT GO screw calliper
                      gauges
             2.1.9 Solid or adjustable NOT GO screw ring
                      gauges
             2.1.10 GO and NOT GO screw check plugs for new
                      solid NOT GO screw ring gauges
             2.1.11 Setting plugs for adjustable NOT GO
                      screw ring gauges
             2.1.12 Wear check plugs for solid or adjustable
                      NOT GO screw ring gauges
             2.1.13 Gauges for the major diameter
      2.2 Gauges for workpiece internal threads
             2.2.1 GO screw plug gauges
             2.2.2 NOT GO screw plug gauges
             2.2.3 Gauges for the minor diameter

It is not necessary to use all the gauges mentioned in DIN 13 Part 16 in the workshop or inspection department. However, in gauging the limits, it is essential that a GO and NOT GO gauging always be carried out with one of the GO gauges and one of the NOT GO gauges referred to in this standard.