Producer Price Index for argon and hydrogen.
Paste straight into Excel, Google Sheets or an email. Spreadsheet format lands as two columns.
| Month | Value | Change m/m |
|---|---|---|
| Sep 2026 | +0.0% | |
| Aug 2026 | +0.1% | |
| Jul 2026 | +0.1% | |
| Jun 2026 | +0.1% | |
| May 2026 | −0.1% | |
| Apr 2026 | −15.4% | |
| Mar 2026 | +0.1% | |
| Feb 2026 | −0.1% | |
| Jan 2026 | +22.7% | |
| Dec 2025 | +0.4% | |
| Nov 2025 | −0.0% | |
| Oct 2025 | −3.4% | |
| Sep 2025 | −0.0% |
Same numbers as the chart, straight from BLS. Dates are the first of each period, the way BLS reports them.
Argon and hydrogen rose 0.9% over the last 12 months, but all of its main inputs rose faster: industrial electric power +4.2%. That cost pressure may still pass through to prices.
Chemicals and allied productsOther chemicals and allied productsMisc. chemical prod. and preparationsIndustrial gases
A starting point citing this series by name and code. Replace the bracketed terms with your contract's actual scope before use.
The [affected portion] of the Contract Price shall be adjusted using US PPI — Argon and Hydrogen (BLS series WPU06790309), published by BLS. Base Period: the index value published for September 2026 (or the month of contract signing, if different) is the Base Value. Adjustment: at each Adjustment Date, the Current Value is the most recently published three-month average of the index (the Averaging Window). The Escalation Factor equals Current Value divided by Base Value. Cap: the Escalation Factor applied under this clause shall not exceed 1.10 or fall below 0.90 (a 10% cap and floor) in any single Adjustment Date, regardless of the index's actual movement. [Replace bracketed terms with your contract's actual affected-portion definition and adjustment-date schedule before use. This is a drafting starting point, not legal advice.]
A blended two-gas series. Use only when the contract genuinely buys both in a fixed ratio, otherwise the nitrogen or oxygen series is the cleaner match for a single-gas clause.
Divide the current value of BLS series WPU067903 (Industrial Gases) by its value at contract signing, then apply that ratio to the industrial gases part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Escalake tracks US PPI — Argon and Hydrogen, applies your formula, and gives both sides a number they can confirm, no spreadsheet required.