Orange Phase Ribbon

R-134a SI Detailed Chart — Orange Phase Ribbon

An amber liquid-vapor illustration sits against an orange diagonal band, above three sections of Celsius readings.

Use this sheet when you need an R-134a reference at 1°C intervals. Read across a Celsius row to compare gauge pressure in bar with absolute pressure in kPa; those pressure columns use different reference points. This orange phase ribbon version covers -20 to 60°C in 1°C steps.

The angled header separates the illustration from the banded table, so the data remains grouped in a rectangular reading area. The 81 listed reference points use Celsius, bar gauge, kPa absolute.

An amber liquid-vapor illustration sits against an orange diagonal band, above three sections of Celsius readings.

Using this reference

The PDF preserves the one-page print layout. The matching Image is a full-resolution WebP rendering. These are finished reference sheets with fixed data and illustrations.

Gauge pressure uses a 101.325 kPa atmospheric reference. Saturation values describe the refrigerant relationship; equipment instructions determine operating and charging targets.

File checksums

PDF SHA-256
f73108e11a8073b8832eebd3041e958543ff76c35ab830382b1eb21154dcb736

WEBP SHA-256
b34a018c1d8ea1d3a9e59e721a0370b3135b0f2992336f262b79657160e5761c

Data, sources, and credits

This collection uses CoolProp 8.0.0 / HEOS R-134a saturation data. The supplied method records comparisons with Arkema and Chemours reference tables.