Quote Originally Posted by Photo Engineer View Post
Alan; Back to the old argument. Well, tablespoons vary a bit in the US, and chemicals vary in crystal habit from batch to batch and even in one batch. I have found a variation of greater than 20% just due to crystal habit. This is often not accurate enough. It depends on the effect of the chemical in question. PE
Electronic gram scales are available for only $10 to $15!
Search for "gram scale .01" on amazon.com. Here they are:

Cost cannot be an objection at such a low price, and it solves all measurement issues. Weighing powders is more accurate. I prefer to weigh liquids as well, as it's more accurate and convenient.

Mark Overton