diff --git a/icons/outline/flask-2-off.svg b/icons/outline/flask-2-off.svg
index 423d77391..c28a8ae22 100644
--- a/icons/outline/flask-2-off.svg
+++ b/icons/outline/flask-2-off.svg
@@ -1,5 +1,5 @@
 <!--
-tags: [liquid, container, glass, chemistry]
+tags: [liquid, container, glass, chemistry, test, laboratory, experimental, beta]
 category: Health
 version: "1.65"
 unicode: "f12f"
diff --git a/icons/outline/flask-2.svg b/icons/outline/flask-2.svg
index b9de88174..d6247025e 100644
--- a/icons/outline/flask-2.svg
+++ b/icons/outline/flask-2.svg
@@ -1,6 +1,6 @@
 <!--
 category: Health
-tags: [liquid, container, glass, chemistry]
+tags: [liquid, container, glass, chemistry, test, laboratory, experimental, beta]
 version: "1.44"
 unicode: "ef60"
 -->
diff --git a/icons/outline/flask.svg b/icons/outline/flask.svg
index 2729d606e..ff1831dd9 100644
--- a/icons/outline/flask.svg
+++ b/icons/outline/flask.svg
@@ -1,6 +1,6 @@
 <!--
 category: Health
-tags: [liquid, container, glass, chemistry]
+tags: [liquid, container, glass, chemistry, test, laboratory, experimental, beta]
 version: "1.6"
 unicode: "ebd2"
 -->
diff --git a/icons/outline/microscope-off.svg b/icons/outline/microscope-off.svg
index 262260836..7cdc4f2bb 100644
--- a/icons/outline/microscope-off.svg
+++ b/icons/outline/microscope-off.svg
@@ -1,5 +1,5 @@
 <!--
-tags: [school, education, learning, lab, experimental, chemistry, biology, medical, bacteria, technology]
+tags: [school, education, learning, laboratory, experimental, chemistry, biology, medical, bacteria, technology, test]
 category: Health
 unicode: "f40e"
 version: "1.94"
diff --git a/icons/outline/microscope.svg b/icons/outline/microscope.svg
index dee46dec9..541dc764e 100644
--- a/icons/outline/microscope.svg
+++ b/icons/outline/microscope.svg
@@ -1,5 +1,5 @@
 <!--
-tags: [school, education, learning, lab, experimental, chemistry, biology, medical, bacteria, technology]
+tags: [school, education, learning, laboratory, experimental, chemistry, biology, medical, bacteria, technology, test]
 category: Health
 version: "1.44"
 unicode: "ef64"
diff --git a/icons/outline/test-pipe-2.svg b/icons/outline/test-pipe-2.svg
index 5fde1e2f3..a7cce7144 100644
--- a/icons/outline/test-pipe-2.svg
+++ b/icons/outline/test-pipe-2.svg
@@ -1,5 +1,5 @@
 <!--
-tags: [sample, color]
+tags: [sample, color, flask, liquid, container, glass, chemistry, test, laboratory, experimental, beta]
 version: "1.61"
 unicode: "f0a4"
 -->
diff --git a/icons/outline/test-pipe-off.svg b/icons/outline/test-pipe-off.svg
index 1ed050492..fba316513 100644
--- a/icons/outline/test-pipe-off.svg
+++ b/icons/outline/test-pipe-off.svg
@@ -1,5 +1,5 @@
 <!--
-tags: [sample, color]
+tags: [sample, color, flask, liquid, container, glass, chemistry, test, laboratory, experimental, beta]
 version: "1.67"
 unicode: "f1b1"
 -->
diff --git a/icons/outline/test-pipe.svg b/icons/outline/test-pipe.svg
index 68ee73419..b218068d6 100644
--- a/icons/outline/test-pipe.svg
+++ b/icons/outline/test-pipe.svg
@@ -1,5 +1,5 @@
 <!--
-tags: [sample, color]
+tags: [sample, color, flask, liquid, container, glass, chemistry, test, laboratory, experimental, beta]
 version: "1.0"
 unicode: "eb3a"
 -->