Rely+On Virkon Tablets from Du Pont are a high level surface disinfectant, proven to effectively tackle all known pathogens; fungi, viruses and bacteria.
When selecting filter paper, these parameters should be taken into consideration.
|Ash content/residue on ignition||The ash content is determined in accordance with DIN 54370. To obtain this 10 g filter paper is weighed before and after ignition in a platinum crucible at 800 °C. The results are expressed as % of original paper weight.|
|Dry bursting strength||For determination of the dry bursting strength the paper is clamped over a rubber diaphragm with
an area of 10 cm2. The strain on the paper is then increased by applying an increasing air pressure,
until the paper bursts. The dry bursting strength in accordance with DIN 53113 is stated in KPa.
|Tensile strength||For determination of the tensile strength, a paper strip (measuring 180 x 15 mm) is subjected to vertical strain by applying increasing weight. The force expended at the moment of tearing represents
the tensile strength. Results are expressed in N/15 mm.
|Thickness||The thickness of a paper is measured with a touch pressure device. Especially for soft and creped
papers it is important that the touch pressure is not too high. Otherwise, the papers are compressed
and a falsely low thickness is obtained.
|Filtration speed||For determination of the filtration speed in accordance with DIN 53137 the duration of flow of 10 mL distilled water through a quadrant-folded, freely suspended filter circle of 12.5 cm diameter is measured. Results are expressed in seconds.|
|Basis weight||The basis weight is determined for a sample of 10 x 10 cm. It is measured in g/m2.|
|Gurley test||The Gurley test measures the time required for filtration of 100 mL air at a water column pressure of 31 mm. The sample has an area of ¼ sq. inch.|
|Wet strength||The wet strength of a paper is a measure for the mechanical stability of a paper in a wet or moist condition. For example, it can be determined as the tensile strength or the bursting strength (see above).|
The retention efficiency of a filter paper is influenced by several factors. Since filter papers are deep bed filters, one usually refers to a mean particle retention.
|Capillary rise according to Klemm||The capillary rise according to Klemm indicates how far a strip of filter paper is moistened in 10 min when vertically dipped with one end into distilled water (20 °C).|
|Particle retention||Particle retention refers to the efficiency of filter papers in retaining certain precipitates. It is characterized by the permeability of the paper for precipitates of iron(III) oxyhydrate, lead sulfate, calcium oxalate and barium sulfate.|
Update November 2020
The UK Government offered a temporary VAT holiday on PPE products from May 1st to October 31st 2020. Although this has now come to an end and VAT is once again chargeable on PPE products, a group of expert GAMBICA members including Camlab have come together to recommend to HMRC that all PPE used in charitably funded medical and veterinary research be eligible for zero rate VAT. You can learn more about this effort here.
In these continuing unprecedented times we have had to deal with product supply restrictions, monthly price increases and surcharges being placed on our purchase orders for goods, particularly for critical Personal Protective Equipment (PPE).
Throughout the ongoing global pandemic we have strived to limit any increases to the selling price of all our main PPE brands. However, due to continued shortages and unprecedented high demand globally, we are seeing monthly cost price increases imposed by many of our PPE suppliers for items such as gloves and respirators . Some national governments have also restricted access to PPE products, and in some cases are applying additional export surcharges. Main manufacturers are also being asked to prioritise front line care workers.
Unfortunately from this point on we will have to include any additional government or increased freight surcharges applied to these products. To help mitigate such increases, we set up a PPE sourcing team in Q2 2020 tasked to source reliable alternative global manufacturers of these types of products in short supply to be able to offer our customers alternative similar products. Through this effort we continue to find cost effective alternatives and we are happy to work with our customers purchasing departments to try and negotiate bulk discount prices.
As products become available we will list them here.
Although we now have to pass on increases and surcharges please be assured that we are not inflating our profits. We are doing our best to overcome shortages by sourcing products from alternative suppliers of PPE, but in some cases the prices of these products are significantly above normal due to demand and in other cases they do not meet the correct PPE regulations that could put the public or medical professionals at risk if sold improperly. We are working with Trading Standards Institute (TSI) and the British Safety Industry federation (BSIF) by reporting these suppliers/providers who we believe are wrongly exploiting the current situation.
Unfortunately we are also finding that unscrupulous suppliers are offering us counterfeit products. Camlab is a member of the BSIF and we are working closely with them to ensure the items we source and sell are properly CE EN/149 rated and tested accordingly. Please note that category III products require much stricter requirements including ongoing market surveillance. Reporting and documentation retention is considerably more onerous on manufactures, suppliers and customers for Health and Safety records, recall, notification and withdrawal purposes.
We wish all our customers well in these trying times and hope we can all return to business as normal as soon as possible
To help our Scientific and Industrial customers find and choose the best products to achieve the right results.
Our Core values
Choice • Service • Trust
Useful Information – Things to Check
Is your supplier a member of the BSIF – https://www.bsif.co.uk/
Has your supplier verified this product and has documentation available?
Medical devices EU regulations
The European Union Medical Device Regulation repeals the existing directives on medical devices: Medical Devices Directive [93/42/EEC] and Active Implantable Medical Device Directive [90/385/EEC]. The regulation was published on 5 May 2017 and came into force on 25 May 2017
European Union (EU) Medical Device Regulation (MDR) 2017/745
The standards, which cover face masks, medical gloves and protective clothing are listed below: