Thanks for asking.  For your convenience Standards Laboratory Supply offers our direct line of products as well as products from our affiliate partners at Amazon.com all on one site.

All products, both Standards Laboratory Supply (identifiable by our logo  ), and products from Amazon.com affiliate partners will be added into one cart on this site.  The cart distinguishes if it is sold from our direct inventory here at Standards Laboratory Supply or one of our affiliate partners at Amazon.com.

After reviewing your cart, and selecting the “Proceed to Checkout” button, the cart separates the products accordingly, and places them in their respective cart to complete the checkout process.

If there are products in the cart sold by our affiliate partners at Amazon.com, an Amazon.com message will appear when you select the “Proceed To Checkout” button informing you to complete your order at Amazon.com.  **(If the Amazon.com cart page does not appear after the message, please refer to the FAQ on pop-up blocker.)**

If you were successfully directed to Amazon.com,  complete your checkout with them, retain any order confirmations that are necessary, and close their window when finished.

If there are products remaining in your Standards Laboratory Supply secure checkout cart,  these are items we carry in our direct inventory,  and are only available for purchase on this site.  You can now complete your billing details and place your order.  You will receive an on screen confirmation as well as an email confirmation of your order.