Beschrijving
pH-bufferoplossing 4 ± 0.01 is een kant-en-klare kalibratiebuffer voor pH-meters en elektroden in laboratoriumkwaliteitscontrole en routinemeting. De nominale waarde van 4 is gespecificeerd tot ± 0.01, ter ondersteuning van nauwkeurige twee- of meerpuntskalibratie in het zure bereik. De oplossing is gekleurd om verwisselingen tussen bufferflessen tijdens het dagelijkse werk te helpen vermijden. Traceerbare SRM-certificaten overeenkomstig NIST onderbouwen de metrologische betrouwbaarheid, en een analysecertificaat kan worden gedownload van de website van de fabrikant. Een tabel van pH/temperatuurvariatie is op het etiket gedrukt voor handige raadpleging aan de werkbank. Na opening is de buffer bedoeld voor gebruik binnen 12 tot 15 maanden. Deze verpakking van 250 ml van fabrikant Labbox (LABKEM-lijn) is geschikt voor analytische chemie, milieutests, voedings- en life-science-laboratoria die stabiele zure referentiepunten vereisen. Het nettogewicht is 0.265 kg. Ideaal voor elektrodekalibratie, instrumentverificatie en gestandaardiseerde pH-meetworkflows.
Dit artikel maakt deel uit van pH-buffers & geleidbaarheidsstandaarden, in Buffers & pH-oplossingen.
Kenmerken
- Verpakkingsgrootte: 1 stuk
- pH-waarde: 4 ± 0.01
- Volume: 250 ml
- Kleurgecodeerd: gekleurd om fouten te helpen vermijden
- Herleidbaarheid: SRM-certificaten volgens NIST
- EAN: 8434868034037
- GTIN: 08434868034037
- Technisch datablad:
- Veiligheidsinformatieblad:
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Questions about pH-standaardoplossing pH 4 ± 0.01, 250 ml
What is this article?
pH-standaardoplossing pH 4 ± 0.01, 250 ml is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in pH-buffers & geleidbaarheidsstandaarden, inside Buffers & pH-oplossingen, in Chemicaliën.
A pH buffer for calibration has a stated pH at a stated temperature, often traceable. A conductivity standard has a stated conductivity. They are not general reagents and they should not be poured back into the bottle. The temperature of the measurement has to be the temperature on the label, or the meter has to compensate.
A buffer resists a change in pH when a little acid or base is added. It does that because a weak acid and its conjugate base are both present. A pH buffer used to calibrate a meter has a stated value at a stated temperature. A biological buffer such as Tris or HEPES is chosen because it holds the pH of a living system and does not poison it. Conductivity standards are the sister articles for a conductivity meter. The ions are on PubChem. Electrode calibration practice sits with EURAMET and BELAC.
Which category should I open next?
The category is Buffers & pH-oplossingen. The sub-category is pH-buffers & geleidbaarheidsstandaarden. The catalogue is Chemicaliën.
Shelves beside this one are Biologische buffers (Tris, HEPES, MOPS) and Buffers (overig).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.