Flame or gunpowder tests are unsafe historical practices, not a how-to. Do not convert early classes directly into modern proof or treat one instrument's calibration as universal.
Proof and quality; supplied 2008 reissue of 1971 work.
Crowgey juxtaposes folk proof tests with Dicas's instrument and proof classes, temperature claims and procurement standards.
112
109
Proof and quality
Read against supplied PDF text and images. Locators are PDF screens, not printed pages. Verified means faithful source capture, not independent historical corroboration. Flame or gunpowder tests are unsafe historical practices, not a how-to. Do not convert early classes directly into modern proof or treat one instrument's calibration as universal.
No access / Whiskey Excerpts Database (USWA)
Evidence
Crowgey juxtaposes folk proof tests with Dicas's instrument and proof classes, temperature claims and procurement standards.
Location and context
No access; Proof and quality; supplied PDF screens 109–112. These are not printed-page numbers. Edition: 2008 reissue of 1971 work.
Annotation
Flame or gunpowder tests are unsafe historical practices, not a how-to. Do not convert early classes directly into modern proof or treat one instrument's calibration as universal.
Verification and use
Flame or gunpowder tests are unsafe historical practices, not a how-to. Do not convert early classes directly into modern proof or treat one instrument's calibration as universal.
Faithful source capture checked against supplied text and images. This does not mean that every cited-through primary record has been independently verified.
Literature note: 