Common use of After the test Clause in Contracts

After the test. of resistance to chemical agents, the samples shall not bear any traces of chemical staining likely to cause a variation of flux diffusion, whose mean variation Δd = 𝑇5 − 𝑇4, measured on the three samples according to the procedure described in Appendix 2 to this Annex shall not exceed 0.020 (Δdm < 0.020).