753 records

How long will this glove protect me against this chemical?

753 records covering 25 glove models, one fact each. Every value is transcribed from the source that states it and carries the sentence it was taken from: 25 sources across 1 site, last checked 2026-11-03, due for re-check by 2028-08-30. Every record has a page of its own, quoting the line that states it.

About this data

Per-chemical breakthrough time, permeation level and degradation rating for all 25 MAPA Professional glove models that publish a chemical chart — the reusable chemical-protection range, the disposable range and the liquidproof range — drawn from MAPA's own published product pages. Each glove model's page lists a table of chemicals it has been tested against, with the CAS number, the breakthrough time in minutes (how long before the chemical passes through the glove material), the permeation level (an EN 374 scale), the test standard the result was measured under, and a degradation rating. Where MAPA lists the same chemical twice for one glove under two different test standards, both results are kept rather than one being chosen. Answers 'how long can I wear an Ultranitril 480 glove handling acetic acid' and 'which MAPA glove holds up against toluene' — questions where guessing wrong means a chemical burn. Scoped to MAPA only: no comparably-structured free source was found for any other glove manufacturer (Ansell, Showa and Honeywell/North publish the equivalent data only as PDFs or behind an interactive selector), so this does not yet answer 'which manufacturer's glove is best', only 'how does this MAPA model perform'.

The data

Showing the first 400 of 753 records. Every record has its own page, with its source and the quoted line that states it; these list the rest.

• Records 1–400Alto 298 · 2-Propanol (Isopropanol) 99% … Trilites 994 · Naphtha VM&P mixture
• Records 401–753Trilites 994 · Nitric acid 68% … Ultranitril 480 · Xylene 99%

Where this came from

Every record above links the page it was taken from and quotes the sentence that states it. These are the 25 sources this dataset was assembled from.

• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/alto-298
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/liquidproof-protection/product-page/alto-405
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/butoflex-650
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/butoflex-651
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/butoflex-652
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/solo-919
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/solo-967
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/solo-977
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/solo-980
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/solo-988
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/solo-990
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/solo-997
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/solo-998
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/solo-999
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/solo-plus-995
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/telsol-369
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/trilites-985
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/disposable/product-page/trilites-994
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/ultraneo-341
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/ultraneo-414
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/ultraneo-420
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/ultranitril-358
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/ultranitril-410
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/ultranitril-458
• mapa-pro.comhttps://www.mapa-pro.com/our-gloves/chemical-protection/product-page/ultranitril-480

Machine-readable

• data.jsonThe whole dataset — every record with its source URL and source quote.
• Open Knowledge Format bundleOne JSON object per line — every record's frontmatter and quoted span exactly as it is held here, in one fetch.
• data.csvThe same records as one flat table, for a spreadsheet or a dataframe. The last four columns are the source URL, the quoted sentence it was read from, the date we last checked it, and which columns are our reading rather than the page's words.
• How this is made and checkedWhat "verified against source" does and does not mean.

From your own code

Same records, same quotes, without scraping the page: refsource is on PyPI and npm. Each value comes back carrying the URL it was read from and the sentence on that page that states it — .source and .quote sit on the value itself rather than in a side channel, so the checking step is available instead of skipped.

pip install refsource
refsource lookup chemical-resistant-glove-breakthrough-times glove_model="Alto 298"

npx -y refsource lookup chemical-resistant-glove-breakthrough-times glove_model="Alto 298"

Set your AI assistant up to use this

Two files and no account. Put this in .mcp.json at the root of your project — Claude Code, Cursor, Windsurf, VS Code and Codex all read that file — and your assistant can look this dataset up instead of recalling it. The server is remote, keyless and read-only.

{
  "mcpServers": {
    "referencesource": {
      "type": "http",
      "url": "https://referencesource.org/mcp"
    }
  }
}

Add to Cursor · or, on the command line: claude mcp add --transport http referencesource https://referencesource.org/mcp --scope project

Then one line in the project's CLAUDE.md or AGENTS.md, so the assistant knows when to reach for it:

When a question needs "MAPA Professional glove chemical breakthrough times", call the referencesource MCP server at https://referencesource.org/mcp (tool `search_records`, dataset_slug `chemical-resistant-glove-breakthrough-times`) instead of answering from memory — every record it returns carries its source URL and a verbatim quote from that page.

What each tool does, and the servers built over single registers: Connect your AI assistant.

753 records. last verified against source 2026-11-03. due for re-check by 2028-08-30.

Licence. Factual compilation with source citations. Breakthrough time, permeation level and CAS number are test-result facts (EN 374 standard test data), not MAPA's original expression; short attributed quotes link back to each glove's published product page.