Hyphenated Technology

Chromatography

Speciation Analyses

Gas Chromatography (GC) | PerkinElmer

Falling Number

Mass Spectrometry

Solus One Kits | PerkinElmer

Single Cell ICP-MS

Mercury Analysis

Benchtop NIR Analyzers

When specifying accessible names via `aria-labelledby`, ensure that the 
label elements exist.

## Explanation

Accessible names are required for many parts of a page, including form controls.
One way to accomplish this is to use `aria-labelledby` to specify the ID or IDs of 
other elements which contain a label. For example:

```html
<h2 id="dialog-labell">Important message!</h2>
<dialog aria-labelledby="dialog-label">
```

In this example, the `aria-labelledby` for the `<dialog>` points to an ID of `dialog-label`,
which doesn't exist. The heading it refers to instead has an ID of `dialog-labell`, presumably 
a typo.

## Why this matters

It isn't usually clear when an accessible name is broken, even during user testing.

This check helps to identify where an element clearly intended to have a label, but
that label is missing.

When a label is broken, it may be impossible for a user of assistive technologies
to understand what that element does.

missing-aria-labelled-by

September 2025

August 2025

PerkinElmer

	Title / URL	Issues
	Hyphenated Technologywww.perkinelmer.com/category/hyphenated-technology	10
	Chromatographywww.perkinelmer.com/category/chromatography	6
	Speciation Analyseswww.perkinelmer.com/category/speciation-analyses	5
	Gas Chromatography (GC) \| PerkinElmerwww.perkinelmer.com/category/gas-chromatography-gc	5
	Falling Numberwww.perkinelmer.com/category/falling-number	5
	Mass Spectrometrywww.perkinelmer.com/category/mass-spectrometry	4
	Solus One Kits \| PerkinElmerwww.perkinelmer.com/category/solus-one-kits	3
	Single Cell ICP-MSwww.perkinelmer.com/category/single-cell-icp-ms	1
	Mercury Analysiswww.perkinelmer.com/category/mercury-analysis	1
	Benchtop NIR Analyzerswww.perkinelmer.com/category/benchtop-nir-analyzers	1

Fix missing ARIA label IDs

PerkinElmer

Where this issue has occurred