PBF4 type fluoroborate ion electrode instruction manual

PBF4 type fluoroborate ion electrode instruction manual

1. Application Fluoroborate ion electrode has been successfully used to determine the boron content in steel. Compared with other test methods, it has the advantages of simple operation and accurate measurement results. Moreover, the electrode can also be used to determine the boron content in seawater magnesia, formate materials and other materials.

2. Technical data
1. Concentration range: 1 × 101 -3 × 106mol / L BF4
2. Measuring temperature: room temperature
3. Internal resistance of electrode: ≦ 50M∩
4. PH range: 3.5-4.5PH

Three, use and maintenance
1. The electrode that has not been used for a long time must be immersed in a 1 × 102 mol / L NaBF4 solution for several hours before use, and then fully washed with deionized water to be used.
2. Preparation of NaBF4 standard solution:
Weigh 109.82g of refined NaBF4 and dilute it to 1000ml. The dilute solution is obtained by this stepwise dilution. To reduce the influence of NaBF4 hydrolysis, the standard solution should be prepared daily.
3. During the test, Na2SO4 should be added to the NaBF4 standard solution as the ionic strength regulator, so that the background solution concentration is 0.1 mol / L NaBF4.
4. When using this electrode, do not collide the sensitive film with hard objects to avoid damaging the electrode.
5. Electrode performance test:
The potential of the electrode was tested in grades from dilute to concentrated in 3 × 106 -1 × 101 mol / L NaBF4 standard solution. The electrode level difference (S) generally conforms to the following formula:
S ≧ 55 × (273 + t) / 298mV / PBF4
5. If the electrode is used frequently, it should be immersed in pure water after each test to facilitate the next test. If it is not used for a long time, the electrode should be washed and dried and stored in a dry place.

4. The quality guarantee period of the electrode is six months

Furniture Wipes have been specially designed for regular cleaning and conditioning of all wooden garden furniture, such as teak.

They are ideal for sprucing up your furniture before and after entertaining and are convenient for wiping up spills. The wipes, impregnated with orange oil & wax, will not only remove dirt, grease and grime but will at the same time replenish your wood.

1) Furniture wipes are processed by the advanced Spunlace Nonwoven material.
2) The Furniture wipes has no Formaldehyde.

3) No gluey substance, have high adsorption.

Household Wipe Features
2.lint free
3.easy to clean and dry
4.super absorbent for water,oil and blood etc.
5.disposable biodegradable
6.cost effective
7.soft and comfortable feeling
8.light weight

Quickly remove dirty and dust on the surface of glass
Make your glass shining and bright
Moisturize and protect glass
Protect glass from spills and stains
Convenient to use and easy to store

Company Advantages: 
1. We are manufacture, we can provide the competitive price and complete support. 
2. Full Automatic production by machine, the production capacity is huge. 
3. Good quality raw material from home and abroad, quality is good and stable. 
4. Proffesional export experience guarratees customer's goods to be shipped safely and timely. 
5. Samples are free, welcome to check our product quality and factory ability. 

Clean and Polish your furniture
Effectively remove dust, fingermarks
Make your furniture shining and bright
Healthy and environment friendly
Wipes Protect furniture from spills and stains

Furniture Wipes

Furniture Wipes,Furniture Wet Wipes,Furniture Cleaning Wet Wipes,Household Cleaning Wet Wipes

Zhejiang Youquan Care Products Technology Co., Ltd. , https://www.youquancare.com