I have a question about antecedent "that" and "which"
I. An electric razor that meets the European Union's safety standards must be approved by American testers.
2. As it happens, a razor that is safe is unlikely to electrocute Americans.
3. American and the EU have been trying to reach a deal which would eliminate the need to double-test.
My question is that can we use "which" to replace "that" in the first two sentences and to change " that" to "which" in the last sentence?