PSTD-012

Pack: F_OVERLAY Severity: major

Hygienic designs should avoid non-drainable pockets and inaccessible crevices in hygienic zones

Rule Card

Field	Value
Pack	F_OVERLAY — Industry Overlay and Compliance
Title	Hygienic designs should avoid non-drainable pockets and inaccessible crevices in hygienic zones
Severity	major
Check logic	Hybrid
Applies to	Compliance overlay
Inputs required	geometry_features
Fix template	Redesign pockets/crevices to be drainable and cleanable (e.g., add drainage, open access, or redesign geometry). Document any unavoidable non-drainable features and their validated cleaning method.

Short Description

Checks for trapped volumes and inaccessible crevices in hygienic zones as a proxy for EHEDG hygienic design guidance.

When It Applies

This rule runs only when an overlay activates F_OVERLAY. It targets Compliance overlay.

Evidence Profile

Input	Category
geometry_features	Geometry

References

Reference	Type	Title
REF-HYG-1	guide	EHEDG Guideline 8 (Doc 8) — Hygienic design principles (guidance)

Compiled Threshold Metadata

Field	Value
compiled_from	pilot_deep_research
source_rule_id	PILOTSTD-012
source_analysis_mode	geometry_dfm
source_standard_clause	None
source_predicate	{'left': 'cad.hygienic_design.trapped_volume_count', 'op': '==', 'right': 0}
source_evaluator_hint	Compute trapped volume / dead-pocket metrics in tagged hygienic zones (product-contact and splash). If hygienic zones are not tagged, raise evidence_gap first.
source_pilot_sets	['SET_B_FOOD_PILOT']
source_evidence_quality	official_abstract
source_needs_manual_confirmation	True
source_inputs	['cad.hygienic_design.trapped_volume_count']
compiled_inputs	['geometry_features']
unknown_source_inputs	[]
compile_status	executable_now

Sources

• D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\manifest.json
• D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\rule_library.json
• D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\references.json
• D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\process_classifier.json
• D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\overlays.json
• D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\roles.json
• D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\report_templates.json
• D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\ui_bindings.json