SCHEDULE 1ESSENTIAL INGREDIENTS OF FLOUR
Column 1 | Column 2 |
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Substance | Required quantity, in milligrams per hundred grams of flour, and conditions of use |
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Description… | Fine white microcrystalline or amorphous powder |
Content… | Not less than 97 per cent of CaCO3 on a volatile matter-free basis |
Volatile matter… | Not more than 1 per cent (determined by drying at 105°C to constant weight) |
Matter insoluble in hydrochloric acid | Shall comply with the requirement for aluminium, iron, phosphate and matter insoluble in hydrochloric acid in the monograph for chalk in the British Pharmacopoeia 1973 at page 93 |
Arsenic… | Not more than 5 mg per kg |
Lead… | Not more than 20 mg per kg |
Other inorganic impurities… | Not more than 100 mg per kg of any of the following substances, namely antimony, copper, chromium, zinc or barium sulphate, or more than 200 mg per kg of any combination of those substances |
Particle size… | Not more than 0.1 per cent to remain on a sieve of nominal aperture size 150 μm and not more than 0.2 per cent to remain on a sieve of nominal aperture size 63 μm. |
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or Nicotinamide |
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