Safety data sheet.

Appendix D of the OSHA hazard communication standard fixes the SDS at sixteen numbered sections in a fixed order, of which sections one to eleven and sixteen are mandatory and twelve to fifteen are not. A print room reads four of them. Section 2 carries the classification and the hazard statements, section 3 names the ingredients and their concentrations, section 8 gives the exposure limits plus the engineering controls and gloves the supplier expects, and section 4 is what the first aider needs at two in the morning. The rest is written for a shipper or a fire officer. The common failure is treating the sheet as a purchasing artifact: it goes into a binder unread, so nobody notices that section 8 asked for local exhaust ventilation the shop does not have, or that section 3 lists a sensitiser at a concentration that puts an operator's hands on the line.