We are begin running a fixing program to integrate the Sales spec. of pine chemical substances. In this program, we will delete the Physical spec. of Extracted & Organic Ingredients, such like boiling point, flash point. And will focus on the writing specification on Relative Density (RD), Refractive Index (RI), Specific Rotation (SR), Odor characters. The details of writing specification pleased to see the following Table 1.
Table 1. The writing specifications of sales spec. by Foreverest Resources Ltd.
|Before Fixing||Fixing Rules||After Integrate||Examples|
|[Item]+[Test method]+[Units]: [value]+[limited]|
|Appearance||[Color]+[adj.]+[Physical properties]||Appearance||Appearance: Colorless transparent liquid|
|Colour, color||Color+[test method]: [value]||Color||Color, Hazen, #: 50 to 100|
|Odour,odor||Odor+[character]+[bio resources]||Odor||Odor: Woody, pines|
|Assay, purity||Purity+[test method]: [value]||Purity||Purity. GC, %: 90 min|
|Acidity,acid value||Acid Value+[unit]: [value]||Acid Value||Acid Value, mgKOH/g: 0.1 max|
|Specific gravity, Relative density||Relative Density+[d204]||@ d20/4#1||Relative Density, @ d20/4: 0.920 to 0.950|
|Refractive index||Refractive Index+[ntD]||@ n20/D||Refractive Index, @ n20/D: 1.464 to 1.474|
|Specific rotation, optical rotation||Optical Rotation+[α]λt#2||@ 20°C||Optical Rotation, @ 20°C, °: -3 to 0|
|Contents of XXXXX||[substance]+[test method]: [value]||α Cedrene, GC, %: 70|
|Solubility||Solubility+[multiples]+volumes+[purity]+[solvent]||Solubility, @[t]°C||Soluble in 5 volumes of 70% ethanol|
|Distillation,Distilling Volume||Distillation Range+[temperature]:[value]||Distillation Range, @[t]°C||Distillation Range, @224°C: 96% v/v min|
|F.F.A, Free fatty acid||Free Fatty Acid, %: [value]||Free Fatty Acid, %||Free Fatty Acid, %: 4 max|
#1 The relative density d204 denotes the ratio of the mass of the substance in air at 20°C to that of an equal volume of water at 4°C. As the relative density of water at 20°C is 0.998234, these values are related by the following equation: d204 = 0.998234 d2020. (Reference: The International Pharmacopoeia, Volume 1)
#2 [α]λt=α/lc. I. α=observed rotation in degrees. II. l = cell path length in decimeters. (1 decimeter = 1 dm = 10 cm. A standard polarimeter tube is 1.00 dm in length.) III. c = concentration in g ml-1 for a pure liquid compound (i.e., the liquid’s density), or g 100 ml-1 for a solution.
TDS will update after this fixing program.