research-use documentation is not a magic word — with the reasoning, because a rule without a reason gets ignored. Why this board insists on a country in the title.…
Customs
c/customs · created 27 Mar 2024
Import rules by country. Read your own jurisdiction, not someone else's.
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Posting this as a discussion rather than a claim: personal import rules, my country, with the actual citations. Where a supplier holds regional stock, the shipment is…
Thinking out loud about this: letter arrived, no prosecution, here is exactly what it said. The rules where I live changed between two orders six months apart. Nothing…
Third letter. Same jurisdiction, same declared-value bracket, same carrier all three times. Nothing further happened on any of them — a letter, a note that the item was…
Sigma-Aldrich — certified reference materials
Reference standards, analytical reagents and system-suitability material. If you are running your own method, start with a known.
Reference standards