The mean roughness Ra matches the arithmetical mean of the absolute. values related to the profile deviation y within the reference length l. Max. profile valley depth Rmax (DIN 4768) The max. profile valley depth Rmax counts for the most significant single. roughness depths Zi within the total length lm.
Benefits. Every 500 Nectar points you redeem is Â£2.50 off your total, which means more money to spend on the goods you want. You can also save further Nectar points for each Argos purchase you make, simply by presenting your card at the checkout. Simply present your Nectar card at the till and the cashier will swipe your card to automatically deduct the points from your account (subject to system availability). 2  Any remaining balance will need to be paid in full by cash, debit or credit card on the day.
This can be activated by registering with Argos. Once you have selected your desired item, you can use the '1 Click Reserve' option to make an instant reservation at your chosen store and be taken to an on-screen confirmation of when your item will be available to collect from the store.ake sure you know the catalogue number(s) of the product(s) you wish to reserve and your store number (3 or 4 digit code), which you can find in our store locator or at the back of the Argos catalogue. Then call 0345 640 1010 and follow the simple steps.