isi!! Hazardous Substance MGMT
v1.21.6 · 8.8 MB · code 97
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File information
UpdatedJul 20, 2025
PublishedApr 14, 2021
Packagecom.wuerth.isi
Versionv1.21.6 (97)
Size8.8 MB
MD513ac821f10671a50502571a2a3972a9d
Min SDK16
Malware scanTRUSTED
Signature SHA1D2:8B:49:10:6A:B7:5F:46:0A:34:51:43:1F:89:F2:C7:3B:5C:40:B9
SignerCN=Phil Merz, OU=Adolf W�rth GmbH & Co. KG, O=Adolf W�rth GmbH & Co. KG, L=K�nzelsau-Gaisbach, ST=Baden-W�rttemberg, C=DE
Total downloads10,000
This version10,000
DeveloperAdolf Würth GmbH & Co. KG
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2025-07-20
- Signature SHA1 D2:8B:49:10:6A:B7:5F:46:0A:34:51:43:1F:89:F2:C7:3B:5C:40:B9
- File MD5 13ac821f10671a50502571a2a3972a9d
How to install isi!! Hazardous Substance MGMT v1.21.6 on Android API 16+
Takes about 2 minutes. You'll need roughly 8.8 MB of free storage.
- Grab com.wuerth.isi_97.apk — hit the Download button above (8.8 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 13ac821f10671a50…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.wuerth.isi_97.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Phil Merz, OU=Adolf W�rth GmbH & Co. KG, O=Adolf W�rth GmbH & Co. KG, L=K�nzelsau-Gaisbach, ST=Baden-W�rttemberg, C=DE. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open isi!! Hazardous Substance MGMT — tap Open on the install screen, or find the isi!! Hazardous Substance MGMT icon in your app drawer.
Common install errors for isi!! Hazardous Substance MGMT
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 16 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.