GB/T 23742-2009 Translated English of Chinese Standard (GB/T 23742-2009, GBT23742-2009): Animal feeding stuffs -- Determination of ash insoluble in hydrochloric acid [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]This Standard specifies the determination method of ash insoluble in hydrochloric acid. The applicable treatment method depends on the nature of the sample. a) The burning treatment method is applicable to organic single feed and compound feed (except those mentioned in acid treatment method). b) The acid treatment method is applicable to minerals, mineral mixtures and compound feeds whose ash insoluble in hydrochloric acid measured by the burning treatment method is greater than 1%. |
Contents
| 3 | |
Scope | 4 |
Principle | 5 |
Sampling | 6 |
Calculation of results | 7 |
Precision | 8 |
Test report | 9 |
Appendix A Informative Results of interlaboratory tests References 10 | 10 |
Common terms and phrases
400 mL beaker according to GB/T accuracy of 0.001 accurate to 0.001 acid to treat acid treatment method Animal feeding stuffs Appendix ash insoluble ash obtained ash-free filter paper broiler feed burn at 550 burner or electric burning treatment method carbon particles carried out according compound feed constant weight cool to room desiccator 6.7 Determination of ash determination results dilute hydrochloric acid drying oven 6.3 electric furnace 6.4 empty incineration dish fishmeal foam disappears grams g hot plate hydrochloric acid 5.1 incineration dish 6.6 insoluble in hydrochloric interlaboratory tests international standard laboratories limit R)/(g/kg mass fraction meat meal mL of dilute mL of hydrochloric muffle furnace 6.2 Number palm kernel expellers paper and residue piglet feed Put the filter Put the incineration reagents Repeatability limit Replace ISO reproducibility limit Results of interlaboratory rinse the filter room temperature Sampling GB/T taken for parallel tapioca test sample Treat the ash Trichloroacetic acid solution