标准-分析测试百科网

This part of BS 4317 specifies a method, using an extensograph, for determination of the stretching characteristics of a wheat flour dough. The method is applicable to white and brown wheat flours. Details of an interlaboratory trial on the repeatability and reproducibility of results gained using the method specified in this British Standard are given in annex A. note: 1) This part of BS 4317 has been prepared based on work with the Brabender Extensograph. This information is given for the convenience of users of this part of BS 4317 and does not constitute an endorsement by BSI of this product.

Methods of test for cereals and pulses - Determination of rheological properties of doughs using an extensograph

ICS: 67.060
CCS: B20
发布: 1999-12-15
实施: 1999-12-15

BS 4317-20:1999 谷物和豆类的试验方法.用淀粉测定记录仪测定面粉的吸水性和生面团的流变性质

This part of BS 4317 specifies a method, using a farinograph, for determination of the water absorption of flours and the mixing behaviour of doughs made from these. The method is applicable to white, brown and wholemeal wheat flours. Details of an interlaboratory trial on the repeatability and reproducibility of results gained using the method specified in this British Standard are given in annex A. note: 1) This part of BS 4317 has been prepared based on work with the Brabender Farinograph. This information is given for the convenience of users of this part of BS 4317 and does not constitute an endorsement by BSI of this product.

Methods of test for cereals and pulses - Determination of water absorption of flour and rheological properties of doughs using a farinograph

ICS: 67.060
CCS: B20
发布: 1999-12-15
实施: 1999-12-15

SN/T 0778-1999 出口大米中铜、锌、铅、镉的测定方法.原子吸收分光光度法

Method of determination of cupper,zinc,lead,cadmium in rice for export.Atomit absorption spectrophotometer

ICS
CCS: B20
发布: 1999-05-05
实施: 1999-08-01

ISO 4174:1998 谷物、油籽和豆类单维气流通过粮堆的单位压力损失的测量

This International Standard specifies a method of measuring unit pressure loss in one-dimensional air flow through bulk grain, permitting calculation of the total pressure loss of a ventilation unit. This is equal to the sum of the pressure losses a) in the ventilation system (ducts, etc.); b) in the grain (which is the subject of this International Standard); c) due to the passage of the air from the duct into the grain. The pressure losses in the ventilation system and those due to the passage of the air from the duct into the grain can be considered as negligible in relation to the pressure losses in the grain if the air flow velocity does not exceed the following limits: — 8 m/s to 10 m/s in the main duct; — 4 m/s to 5 m/s in the secondary duct; — 0,25 m/s when entering the grain. If, for economic reasons, air velocities are higher than those indicated above (up to 30 m/s in the main duct), then, following pertinent literature, the pressure loss caused by the air distributing and discharging system has to be calculated.

Cereals, oilseeds and pulses - Measurement of unit pressure loss in one-dimensional air flow through bulk grain