Masonry Magazine March 1978 Page. 15
Sampling and Testing Costs
8.1.1 If the results of the tests of laboratory prepared mortar show that the mortar does not conform to the requirements of this specification, the costs shall be borne by the seller.
8.1.2 If the results of the tests of laboratory prepared mortar show that the mortar does conform to the requirements of this specification, the costs shall be borne by the purchaser.
8.1.3 If the job specifications require that the construction mortar be sampled and tested for the purpose of quality control, the responsibilities for the costs of such sampling and testing shall be clearly stated in the specifications.