Ukraine ДСН 3.3.6.042-99 (Chief State Sanitary Doctor, Постанова № 42, 1999-12-01) sets indoor workroom microclimate limits. Table 2 permissible warm-period ceiling by work category (light/moderate/heavy 28/27/26°C, permanent workstations); §2.9 general rest rule (>=10% per 2°C of excess, recommended 20% floor at RH>75%); Table 5 (§2.10) work/rest minute schedule for repair work inside heated production equipment, 28-40°C; Table 4 continuous IR-exposure/rest schedule above 350 W/m2 over >25% of body surface.
No standalone formula is published for this standard; see programmable logic and parameters below.
Governing metric: Dry-bulb air temperature (°C) against the workload-category permissible ceiling; Table 5 repair-work minute schedule 28-40°C; optional informational Table 4 radiant-heat reference
| Parameter | Value |
|---|---|
permissibleLightC | 28 |
permissibleModerateC | 27 |
permissibleHeavyC | 26 |
restPercentPer2CExcess | 10 |
highRhThresholdPercent | 75 |
highRhRecommendedRestPercent | 20 |
table5MinC | 28 |
table5MaxC | 40 |
Table 2/§2.9/Table 5/Table 4 values verified directly against the full primary text at zakon.rada.gov.ua/rada/show/va042282-99 this session (fetched and parsed verbatim, not summarized). Unverified claims from prior research ('>37°C dangerous/outdoor not recommended', '>=35°C outdoor 15-20 min cycles', '4-5 h/shift cap') do not appear anywhere in the primary text and are intentionally omitted.
Programmable logic: Workload maps to Table 2's ceiling (light/moderate/heavy -> 28/27/26°C; unspecified defaults to the most protective 26°C heavy-work ceiling). Above the ceiling, §2.9 computes restPercent = min(100, ceil(excessC/2)*10), floored at 20% (informational) when RH>75. Independently, airTempC >= 28°C looks up Table 5 (rounding up to the next 2°C band; the 40°C row floors any reading above 40°C with a loud warning, since the norm defines nothing beyond it). Table 5's literal minutes are the headline schedule when it applies; otherwise the §2.9 percentage is converted into an equivalent 60-minute work:rest split and labeled as an app-side conversion, not verbatim text. highRadiantHeat=true surfaces Table 4's reference bands as an informational warning only (no W/m2 input is collected). No stop-work threshold exists in the primary text. A '>37°C dangerous/outdoor not recommended' rule, a '>=35°C outdoor 15-20 min cycle', and a '4-5 h/shift cap' were not locatable in the primary text and are deliberately not encoded.
Required inputs: airTempC
Optional inputs: workload, relativeHumidity, highRadiantHeat
This standard was added to the calculator.
Get notified when Ukraine ДСН 3.3.6.042-99 — Sanitary Norms for Microclimate of Industrial Premises changes — threshold changes, scope and legal-status changes, additions and removals. Changes that permit more heat exposure than before are labelled as such.
Paste this address into any feed reader:
https://heatrules.com/standards/ukraine_dsn_3_3_6_042_99/feed.xml
Open the feed · All update feeds · No account or email address is needed; the site keeps no subscriber list.