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Accessibility Statement

"The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect." Tim Berners-Lee

At Sigmer we are committed to making our website accessible to all users. We strive to comply with the highest standards of accessibility possible in accordance with the W3C Web Content Accessibility Guidelines (WCAG).

We welcome feedback from users who experience any difficulty navigating the Sigmer website or gaining access to information.
Please email us with your helpful comments.

Access keys

Most browsers support jumping to specific links by typing keys defined on the website. Windows users, you can press ALT + an access key. Macintosh users, you can press Control + an access key.

All pages on this site define the following access keys which are those adopted as U.K. Government Standards:

  • Access key S - Skip content and go to navigation
  • Access key 1 - Home page
  • Access key 2 - Latest news
  • Access key 3 - Site map
  • Access key 4 - Search site
  • Access key 6 - Contact us / help
  • Access key 8 - Terms and conditions
  • Access key 0 - Accessibility statement

Standards compliance

  1. All pages on this site are WCAG AAA approved, complying with all Priority Level 1, 2 and 3 guidelines of the W3C Web Content Accessibility Guidelines. This is a judgement call; many of the guidelines are intentionally vague. They require a subjective assessment and cannot be tested using any of the third party automatic validators. We have reviewed the guidelines and believe that all pages comply.
  2. All pages on this site are Bobby AAA approved, complying with all Bobby guidelines. Again, this is a judgement call; many accessible features require a subjective assessment. Having reviewed these guidelines, we believe that all pages comply.
  3. All pages on this site validate as XHTML 1.0 Transitional.
  4. All cascading style sheets (CSS) validate using the W3C CSS Validator.
  5. All pages on this site use structured semantic markup. H1 tags are used for the page title, H2 tags for main headings within the document and H3 tags for sub headings.

Navigation aids

  1. All pages contain a 'skip content and go to navigation' link for speech browser users. Pages have been set up to deliver the pages main content first, ahead of navigation, so that speech browser users access information they want more immediately. The 'skip content' link allows these users to move quickly past page content, if it is not useful to them, and on to navigation links. Windows users press ALT + key 's', Macintosh users press Control + key 's' to jump the speech browser past the main content on a page and to begin reading out the navigational links on that page.
  2. All pages include a search box (access key 4). Advanced search options are available by following the link on the search return page.
  3. There is a site map which allows quick access to all site pages (access key 3).


  1. Where necessary, links have a title attribute which describes the target in greater detail.
  2. Links are written to make sense when read out of context.


All content images used in this site include a descriptive ALT attribute. Those images which are purely decorative include a null ALT attribute.

Visual Design

  1. This site uses cascading style sheets (CSS) for visual layout.
  2. If your browser or browsing device does not support stylesheets or stylesheets are switched off, the content of each page is still readable and the site fully navigable.
  3. This site uses only relative font sizes, compatible with the user-specified "text size" option in visual browsers.

Accessibility references

W3C Web Content Accessibility Guidelines, which explains the reasons behind each guideline.

W3C accessibility techniques, which explains how to implement each guideline.

W3C accessibility checklist, a developer's guide to accessibility.

a clear path.

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John Archibald This page is managed by John Archibald. If you would like to talk with John please email
or call 01273 669 710.

T: 0207 183 5389  E

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