What types of damage should you check for when inspecting a carabiner?

When inspecting a carabiner, it is crucial to check for cracks and corrosion because these conditions can significantly compromise the strength and integrity of the carabiner. Cracks may indicate that the material has been stressed, which can lead to failure under load. Corrosion can weaken the metal over time, especially in environments exposed to moisture or chemicals, which can lead to catastrophic failure when the carabiner is used in rescue situations or climbing activities.

While dents and scratches can also be assessed during an inspection, they are not as critical as cracks and corrosion in terms of structural integrity. Dents may affect performance but do not necessarily compromise the carabiner's ability to hold weight unless they are severe. Weight loss and color fading are not typical indicators of a carabiner's safety or functionality in the context of inspecting for damage, making them less relevant during an evaluation aimed at ensuring the device's reliability.