Can Sigma-Aldrich share polyamino acid polymer manufacturing procedures with the customers?

April 26, 2017acid customers manufacturing polyamino polymer procedures share Sigma-Aldrich

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Our manufacturing procedures are proprietary. We provide only general literature methods.

Does Sigma-Aldrich allow customer to review batch records and manufacturing procedures during the audit?
Can a multi-level campus that includes an ALC share the same policies and procedures?
Can Sigma-Aldrich use ultra filtration for polyamino acid polymer purification?