The instrument is designed and made as per the National Standard GB/T387 ¡°Test Methods for Sulfur Content of Dark Petroleum Products (Tubular Oven Methods)¡±. It is suitable to determine sulfur content of dark petroleum products. Place sample in a quartz boat and completely burn sample in the high temperature air at a stipulated flow rate. Absorb sulfurous anhydride and sulfuric anhydride produced from combustion using peroxide and sulfuric solution. Then make titration for sulfuric acid produced using sodium hydroxide solution.
Technical characteristics
1. The instrument is mainly composed of tubular oven, oven temperature controller, flow meter, and display.
2. Adopt microprocessor to form the intelligent controlling system, it can control determination time, oven movement, and alarm system automatically.
3. After preset oven moving mode, the oven can move, stop moving and return back to initial state automatically as per the requirement of test procedures.
4. It has two parallel tubular ovens in horizontal type, so it can make determination for 2 samples at the same time. It is efficient, accurate and reliable.
5. Equipped with air source and a joint for outer air source, so you can use inner air source of the instrument or outer air source.
Technical parameters
1. Power supply: AC 220V¡À10%, 50Hz
2. Type and quantity of heating oven: parallel tubular ovens in horizontal type
3. Chamber diameter of oven: ¦µ22mm
4. Heating power of oven: 1400W¡Á2
5. Max. Temperature of oven: 950¡æ
6. Moving distance of oven: not less than 135 mm
7. Air flow rate: not less than 150 L/h
8. Max. Preset time: 99 min 59 s (100 min).
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Product Brands: ABC, ABC Alkaline. Available Variants: AAA, AA, C, D, 9V Product of Indonesia
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The high quality bulgarian rose oil gained its producers scores of medals and diplomas from many exhibitions and fairs. The rose valley in bulgaria, near the town of kazanlak, is among the major producers of attar of roses in the world. Thanks to the specific geographic and climate conditions favorable temperatures during february, when blossoming buds formed, the maroon forest soils and frequency of the rainfalls during the rose picking in may and june, more than 3 centuries had been cultivated the famous all over the world bulgarian oil rose. This rose is used for producing the incomparable bulgarian rose attar.
Lemon balm essential oil (also known as Melissa essential oil) has a great variety of possible effects. The word 'Melissa' is Greek for 'honey bee', Melissa having been planted near bee hives to produce the most delicious honey. Lemon balm oil is considered one of the most powerfully medicinal essential oils in all of aromatherapy, with a wonderfully pleasant sweet, herbaceous aroma. A great deal of oil sold as lemon balm today is actually a blend of lemongrass and citronella oils - 'true' lemon balm oil has its own unique aroma and properties.
