The recipe should tell you what those abreviations mean.
Regarding another answer you have - I'm British and have never heard of a "British Standard cup" nor did it (or BS) come up when I used Google. British cups aren't "standard". In Britain dry ingredients would be measured by weight and liquid ingredients using units like fluid ounces, pints, millilitres etc.
It really takes some tracking down to find this as there is no "current" BS (British Standard) cup size outside of women's lingerie!
Apparently, if you go back far enough you find that tea (i'm not sure if they refer to brewed or just the leaf), and maybe rum (royal navy) was measured by the BS cup and was 10 fl oz (imp) or 1/2 pint (imp). So it's actually a bit more than most in here are posting being the equivalent to 284ml. It's not a measurement that has really been used in the UK cooking EVER!
Curious, I went looking and surely I'm not alone. I found nothing - no BS cup, no Bj cup, no British standard cup. I suggest you just use a measuring cup. As long as you are consistent it should be fine. But it's a mystery all right.
Answers & Comments
Verified answer
The recipe should tell you what those abreviations mean.
Regarding another answer you have - I'm British and have never heard of a "British Standard cup" nor did it (or BS) come up when I used Google. British cups aren't "standard". In Britain dry ingredients would be measured by weight and liquid ingredients using units like fluid ounces, pints, millilitres etc.
If I were you, I'd find another recipe.
It really takes some tracking down to find this as there is no "current" BS (British Standard) cup size outside of women's lingerie!
Apparently, if you go back far enough you find that tea (i'm not sure if they refer to brewed or just the leaf), and maybe rum (royal navy) was measured by the BS cup and was 10 fl oz (imp) or 1/2 pint (imp). So it's actually a bit more than most in here are posting being the equivalent to 284ml. It's not a measurement that has really been used in the UK cooking EVER!
Curious, I went looking and surely I'm not alone. I found nothing - no BS cup, no Bj cup, no British standard cup. I suggest you just use a measuring cup. As long as you are consistent it should be fine. But it's a mystery all right.
BS may well mean British Size.
British standard cup
British standard cup. About 250 ml.
without reading the whole recipe, I have no idea..it could also be a typo