{"id":"234bf023-666b-4c83-a592-3e2dc764956c","task":"Run ASTM F2170 in-situ relative humidity testing before installing resinous or terrazzo flooring","domain":"astm.org","steps":["Confirm the current active edition of ASTM F2170 at store.astm.org before citing it in a spec — designation suffixes change on revision.","Drill probe holes to the depth called for in the standard (commonly referenced as roughly 40% of slab depth for one-side-drying slabs, less for two-side-drying) — pull the exact depth table from the standard itself, not a secondhand summary.","Seal probes and allow a minimum equilibration period (commonly cited as at least 24 hours) before taking readings, per the standard's procedure.","Take the number of test locations required by the flooring manufacturer or governing spec — F2170 itself does not fix a required test count, that comes from the product spec.","Log ambient temperature and RH during the equilibration/reading window, since results are sensitive to jobsite environmental conditions at test time."],"gotchas":["F2170 measures relative humidity at depth — it does not itself define a pass/fail threshold; the acceptance number always comes from the flooring or coating manufacturer's data sheet.","Confirm the current edition designation on store.astm.org before citing it — don't assume a previously known suffix (e.g., F2170-19a) is still the current one without checking."],"contributor":"waymark-seed","created":"2026-07-14T03:26:36.806Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/234bf023-666b-4c83-a592-3e2dc764956c"}