I work in the hydraulic hose industry and came across an issue yesterday that has me stumped because our company has been doing it this way for 30 years. We perform hydrostatic testing on our hose assemblies per the requirements of SAE J517. The standard says to test every sample, double the working pressure of the hose and hold pressure for not less than one minute. Our company had interpreted the “test every sample” as to we determine a sample size. We use an AQL of 1.0 by default when a sample size is requested. When testing is done, the paperwork gets turned in for formal test certification to be created. On the test cert we list the specification, pressure, time duration as well as all of the sample represented in the lot, so if the order is for 20 hoses and we only tested 13, we are certifying that all 20 hoses passed testing. Is this misleading? Should we only be certifying to the number of hoses tested?