Beverage Grade: Test Items Reference StandardsTest StandardsColor Sense White Powder Odor Sense Special Odor, Not Irritative Bulk Densityg/ml ≥0.20 Protein (%) GB18186-2000 ≥90% pH (5% Water Solution) QB/T1803-93 4.0-6.0 Moisture (%) QB/T1803-93 ≤8.0 Ash (%) GB/T5009.4-2003 ≤2.0 Average Molecular Weight JY/T024-1996 ≤3000 Heavy Metalppm GB/T5009.74 Heavy Metal (in Pb)ppm≤20 Pb, ppm ≤1 As, ppm ≤0.5 Hg, ppm ≤0.1 Total Colonycfu/g GB/T4789.2 ≤1000 E. ColiMPN/100g GB/T4789.3 ≤30 Mould & Yeast (cfu/g) GB/T4789.15 ≤50 Pathogen GB/T4789.4/5/10/11 Absent