PREPARATION OF FULLERS EARTH
101940 校准试剂 使用方法
1.1 Health & Safety Precautions 健康与安全措施101940 校准试剂
The chemicals used when following this procedure are harmful, therefore the correct
safety precautions must be carried out. During handling, avoid inhalation and contact
with the eyes or skin.Wash hands thoroughly after use.Refer to the data sheets for
further details of the chemicals used.
使用该化学物质的过程有害的,因此必须进行正确的安全和预防措施。在使用过程中避免吸入颗粒，禁止接触皮肤和眼睛，使用后认真洗手。
1.2 Method of Preparation制备方法101940 校准试剂
The Fuller's Earth is supplied in a sealed 20g package, the package contains sufficient
to make a ) solution when combined with 1 litre of water. Alternate solutions can be obtained by increasing the amount of water used as shown in the table below.
20克的校准物质密封于塑料袋中，加入一升的纯水可以制备成20,000 mg/l (20 g/l）的校准溶液。制备其他比例的校准溶液可通过增加纯水的容量来实现。
| 所需溶液 (g/l) | 添加的水量 (升) |
| 2.5 | 8.0 |
| 5.0 | 4.0 |
| 10.0 | 2.0 |
| 20.0 | 1.0 |
| 40.0 | 0.5 |
The following points should be observed when preparing and using Fullers Earth
solutions:
• The water used should be freshly distilled or de-mineralised
• Ensure the container used for the solution is clean
• During preparation and use, keep the solution covered to prevent contamination
• When using the solution it must be continually stirred to ensure accurate and
consistent measurements and to prevent settling
制备校准溶液时需要注意以下几点：
• 纯水是刚蒸馏的去矿物质水
• 确保溶液所用的器皿是干净的
• 制备溶液期间，需要盖住器皿防止污染
• 使用过程中需要不断搅拌防止沉淀，以保证校准液的准确性和一致性。
101940 校准试剂 101940 校准试剂
