{"id":290951,"date":"2024-10-19T19:45:00","date_gmt":"2024-10-19T19:45:00","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-186432016\/"},"modified":"2024-10-25T16:46:03","modified_gmt":"2024-10-25T16:46:03","slug":"bs-iso-186432016","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-186432016\/","title":{"rendered":"BS ISO 18643:2016"},"content":{"rendered":"
This International Standard specifies the test procedure for determination of the biuret content in liquid and solid urea-based fertilizers based on the HPLC method.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
---|---|---|---|---|---|---|---|
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 1 Scope 2 Normative references 3 Principle 4 Reagents 5 Apparatus <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 6 Procedure 6.1 Preparation of test sample 6.2 Preparation of test solution 6.3 Preparation of biuret working standard solutions 6.4 HPLC conditions <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 6.5 Preparation of standard curve 6.6 Determination of the biuret content in the test solution 6.7 Calculation and expression of the results 6.8 Precision 6.8.1 Ring test <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 6.8.2 Repeatability, r\u00a0 6.8.3 Reproducibility, R\u00a0 7 Test report <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | Annex\u00a0A (informative) Report of international laboratories ring test <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | Annex\u00a0B (informative) Alternative method for determination of biuret in fertilizers <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | Bibilography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fertilizers and soil conditioners. Determination of biuret content of urea-based fertilizers. HPLC method<\/b><\/p>\n |