What is required for the storage of samples not under the supervision of a licensed sampler and weigher?

For storage of samples not under the supervision of a licensed sampler and weigher, it is required that samples shall be locked. This requirement ensures that the samples are secured against unauthorized access or tampering, which is critical in maintaining sample integrity. When samples are not under direct supervision, locking them provides an essential layer of protection, helping to prevent any potential contamination or alterations that could affect testing results or the validity of weight measurements.

Keeping samples locked also establishes accountability and ensures that only authorized personnel can access these materials. This practice aligns with regulatory compliance and best practices in handling and storing samples in various industries, emphasizing the importance of maintaining the quality and authenticity of the samples throughout their storage period.