One reason for A and B samples is to protect the riders from the unintentional sample contamination and intentional tampering. Quality assurance practice would require separate handling of the samples, storage in separate venues under separate custodians. This separation of the samples protects against contaminating, tampering with both samples.
Of course, double sampling from the same bottle provides none of these protections. The riders would be exposed.
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Quoted message said:
One reason for A and B samples is to protect the riders from the unintentional sample contamination and intentional tampering. Quality assurance practice would require separate handling of the samples, storage in separate venues under separate custodians. This separation of the samples protects against contaminating, tampering with both samples.
Of course, double sampling from the same bottle provides none of these protections. The riders would be exposed.
Ray
Ray,
Did the A and B comes from the same "big bottle" ? or Did the rider [censored] twice ?