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feat: add HCFC-22 GWP reference - #6

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AbhishekKallolimath wants to merge 1 commit into
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AbhishekKallolimath:feat/add-hcfc-22
Open

AbhishekKallolimath wants to merge 1 commit into
greencalculus:mainfrom
AbhishekKallolimath:feat/add-hcfc-22

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@AbhishekKallolimath

@AbhishekKallolimath AbhishekKallolimath commented Sep 19, 2026

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Summary

Adds HCFC-22 to gwp_reference.json.

Changes

  • Added HCFC_22 with:
    • AR4: 1810
    • AR5: 1760
    • AR6: 1960
  • Removed HCFC-22 from not_covered.
  • Added aliases:
    • r-22
    • r22
    • chlorodifluoromethane

Sources

Primary source: GHG Protocol, "Global Warming Potential Values", v2.0,
August 2024, Table 1.

The HCFC-22 values are:

  • AR4: 1810
  • AR5: 1760
  • AR6: 1960

These values are reconciled against the GHG Protocol
"Global Warming Potential Values", v2.0 (August 2024), as required
by the issue.

coincides() check

The three HCFC-22 values are distinct:

  • AR4 = 1810
  • AR5 = 1760
  • AR6 = 1960

Therefore, no report pair has identical values, so each pair can
participate in the mislabel test.

Validation

  • python -m json.tool gwp_reference.json
  • git diff --check
  • python gwp_basis_check.py --self-test
  • All 9 self-test cases pass.

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