To my simple mind the problem is not really that complicated. Every measurement has some level of error...Our watches have error...our home temperature controllers have error...The gas gage in our cars has error...and on it goes...As @Lasse described in post #98 in this discussion the process of finding the errors in his test kits and testing methods have lead him to adopt a test protocol that requires several measurement to feel somewhat confident in his results....If he chose to he could actually put an error range to his work...Like.... Measured value ± .02, .03 , .04...or what ever his result tell him...
This is what outside testing services need to do...The same thing @Lassie did and publish their results for each of the elements or compounds measured...This would help the receiver of the information to better understand confidence in the measurement and therefore confidence in any decisions they might make...My 2 cents
This is what outside testing services need to do...The same thing @Lassie did and publish their results for each of the elements or compounds measured...This would help the receiver of the information to better understand confidence in the measurement and therefore confidence in any decisions they might make...My 2 cents