1. Test facilities and auxiliary devices: laboratory scales that provide a weighing error of no more than 1 g., a metal ruler according to GOST 427 or another measuring instrument that provides measurement accuracy of 1 mm.
2. Procedure for preparing and conducting the test:
The test is carried out on three segments selected according to 6.5 of this standard. The actual length and mass of the sample are measured .
3. Processing the results:
The mass of 1 m of the profile M, g, is calculated by the formula
where is the mass of the sample, g;
— sample length equal to 1 m;
— sample length, m.
The result is rounded to 1 g .