Editorial policy

Our sourcing order

For any technical figure, we use the best source available, in this order:

1. KIGL's own measured data — batch analysis, plant operating records, our own test results.
2. The governing standard — the relevant Indian Standard, or the Indian Pharmacopoeia monograph for a medical gas.
3. Neutral public authorities — NIST Chemistry WebBook, ICSC, PubChem, and public regulatory text such as the CLP harmonised classifications.
4. Clearly-labelled standard literature, marked as such on the page.

We do not take technical data from a competitor's safety data sheet or datasheet, and we do not cite one. A safety data sheet is a manufacturer's own regulatory document about its own product; lifting figures from someone else's is poor practice and it destroys the credibility of the document it lands in.

What we do when we cannot confirm something

We leave it out, and we record it. Every page on this site carries an internal register of claims awaiting confirmation, and the foot of the page tells you how many items are on it. That number is deliberately visible: a page with open items is a page still being worked on, and you are entitled to know that.

Where an industry-typical value exists but we have not measured it ourselves, the specification table says so in the "method / basis" column rather than presenting it as a KIGL figure. The difference between "IS 308 typical limit" and "KIGL batch data" matters, so we print it.

Our use of AI

We use AI tools for drafting and research, the way we use any other tool. What that does not change: a named human author and reviewer are accountable for every page, and every specification, standard reference and safety statement is checked against the source documents above before it is published. We do not generate pages at scale, and no figure reaches this site because software produced it.

Standards pages are not the official text

The Bureau of Indian Standards holds copyright to the Indian Standards and sells the authoritative text. Our standards pages explain which standard applies to your gas, your cylinder and your situation, and what follows from it in practice. Where compliance is at stake, the official document is the only one that counts, and nothing here overrides the Gas Cylinders Rules, your PESO licence or your own written procedures.

Corrections

Tell us and we will fix it. Corrections that change a technical figure get a new last-reviewed date so the change is visible. We would rather be corrected by a customer than quoted wrongly by one.

Last updated 9 August 2026.