Teach you step by step how to review chemical safety instructions (SDS) | From regulatory interpretation to practical skills

Recently, Lao Zhang worked as a safety supervisor in a chemical plant, and found that there were all kinds of SDS documents piled up in the workshop-some missing pages and few items like "dragonflies with broken tails", and some data obviously didn't match the number. The most outrageous thing was that the fire extinguishing method was written as "fighting with water", but the product itself was sodium metal that burned when exposed to water! What if something really happens? Today, I will talk to you about how to check the "ID card" of this life-threatening chemical.

▶ Step 1: Read the Regulatory Handbook
Just like taking a driver's license test before driving, you must prepare "three magic weapons" first to review SDS:
1. "GB/T 16483-2008"-the writing outline equivalent to SDS, stipulating that 16 chapters must be as tightly fitted as Russian matryoshka dolls
2. "GB/T 17519-2013"-an operation manual that teaches you how to fill it out step by step
3. The latest edition of GHS Purple Book-the global chemical classification "codebook"

Remember to keep these documents handy. We call it "The Little Red Book Trilogy" in our factory. I just encountered a case last week: a supplier's SDS missed the eye contact treatment in the "First Aid Measures" and directly stepped on the red line of GB30000. We called it back and redid it on the spot.

▶ Step 2: Check item by item according to template
Formal review is like playing "Let's find fault", focusing on these error-prone points:

✔ ️ Part 2 Hazard Signs: Last year's new 10th edition of GHS requires that the "skull" symbol must have a red box, and many old documents still use black and white icons
✔ ️ Item 9 physical and chemical data: For the ethyl acetate we submitted for inspection last year, the flash point given by the three testing agencies ranged from-4 °C to 7 °C. Finally, the data from authoritative agencies shall prevail
✔ ️ Item 14 transportation information: The freight forwarding document found last week, UN number 2789 corresponds to "acetic acid solution", but the goods are actually glacial acetic acid with a concentration of 80%, which is a typical "selling dog meat with sheep's head"

Special reminder: Be careful when you see "data confidentiality". Once, the SDS provided by a Japanese company wrote "trade secret" in Part 3, but we verified it according to the Japanese JIS Z7253 standard, and found that the ingredients with excessive concentration must be clearly stated. In the end, the other party obediently completed the ingredient list.

▶ 's third step: technical review must be more serious
This link has to be incarnated as "Sherlock Holmes", focusing on these technical flaws:

❶ Physical and chemical data fight: A certain review found that the boiling point of a certain solvent was written as 205 °C, but the flash point in the same document was marked as 12 °C. This is obviously contradictory
❷ Emergency response contradictions: I have encountered SDS that says "extinguish the fire with foam", but this substance will produce toxic gases when exposed to water. According to American HCS standards, dry powder must be used
❸ Transportation classification error: In the case seized last year, the oxidant transported by a certain company as ordinary cargo should actually be classified as Class 5.1 dangerous goods according to ADR regulations

Tip: If you are not sure, you can go to the official website of China Chemical Safety Association to check the latest warning cases. Last month, by comparing the database, we found that the LD50 data provided by a supplier was 10 times lower than the authoritative value, thus avoiding a major hidden danger.