NP 1420-1987 Fruits, vegetables and similar products. Measurement of sugar-free, low-sugar and high-sugar (sucrose) substances by Luff-Schoorl method. current procedures
1988NP 1420-1987 Fruits, vegetables and similar products. Measurement of sugar-free, low-sugar and high-sugar (sucrose) substances by Luff-Schoorl method. current procedures