80Stk 114 pH Wert Teststreifen Indikatorpapier Alkalinität Säure WassertestD

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Verkäufer: Top-Rated Seller smithsonshelia92 (30.479) 98.6%, Artikelstandort: Shanghai, Versand nach: Worldwide, Artikelnummer: 123629007057 Description Description&Previewshipping&policyDescription: description: Product Instructions: 100% Brand New & High Quality 1. Checking the Property of the Solution: please take a small piece of test paper on the surface of the glass or vessel, use the glass rod or plastic dripper with stain to point in the middle of the test paper, observe the color changes and compare it with the color card, and determine the property of the solution. 2. Check the Property of the Gas: firstly please wet the test paper with distilled water, stick it to one end of the glass rod, close the paper by glass rod to the gas, observe the color changes, and determine the property of the gas. 3. Attention: (1) The test paper can not be directly dipped into the solution. (2) The test paper can not touch the test tube mouth, bottle mouth, catheter mouth and so on. (3) When you are measuring the pH of the solution, the test paper can not be previously wetted with distilled water, because the wetting test paper is equivalent to diluting the test solution, which can lead to inaccurate measurement. The correct way is to dip in the middle of the test paper by glass rod with solution to be tested. After the test papers' discoloration, then you can compared it with the standard color card to determine the pH of the solution. (4) After taking out the test paper, the lid of the container which contains the test paper should be tightened to avoid contamination by some gas in the laboratory. Product Parameters: 1. Thickness: of Each One: about 0.2 mm / 0.01 inches 2. Note: 80 pcs / book with color card 3. Material: paper SKU :ZZS1512 Preview: Thank you for your purchase Problems? You can follow below process to chontact us. There is a time zone difference,but we will do our best to quickly response to your questions: Shipping - Handling time :48 hours - Standard to USA :about 7-14 working days(ePacket) -Economy to USA:about 20-35 working days(NO tracking under $5) - Economy Int'l Shipping:20-35 working days(NO tracking under $20) -Standard Int'l Shipping:20-35 working days(With tracking) -But like Russia,and some South Ameria country maybe need 2-3 weeks more. Please make sure your address in ebay is correct. we will only follow your address listed in the ebay orders for the shipment. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Payments We accepts Paypal only If you have any questions about the payment,please contact us through eBay message. Import Duties In case some duty is due Upon delivery, it is your responsibility to meet that expense and this may cause delays to delivery schedule and you may have to pickup goods at the customs office. Terms & Conditions By bidding on this item,the Buyer agrees to all of the terms and conditions as outlined in this listing .please ensure to read and agree to All eBay terms and Conditions before bidding. All pictures are for illustration purpose only and Colours may vary slightly. Our store obeys all eBay Rules and Policies. Returns Policy To Return an item you must contact us and take photos of your item to clearly show any damage or unusual aspects of it. Approved returns will be subject to inspection on arrival. Items must be returned in original condition with all original packaging. All shipping and handing charges are non-refundable Return delivery costs are the responsibility of the buyer. We will cover the cost if sending replacement/repaired items. Within 7 days after receiving your products, we offers a no-hassle 7 day exchange/replace only if your items are found to be defective by manufacturer. Condition: Neu, Herstellernummer: nicht zutreffend, Herstellungsland und -region: China, Marke: Markenlos, EAN: Does not apply

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  •  Verkäufer - 30.479+ artikel verkauft. 1.4% negativ bewertungen. Verkäufer mit Top-Bewertung! Schiffe pünktlich mit Tracking, 0 Probleme mit vergangenen Verkäufen.
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