A pool supply shop. Or from a pool supply shop online.
Pool Tool in Ventura CA makes these but does not sell retail. However, they may be able to direct you if your local pool store cannot order one for you.
k
garden soils
You wash the item with clean, hot soapy water then rinse or wipe clean afterwards.
Many items exposed to acid see other items that aren't actually there.
Sulfuric acid.
You may want to double-check this, but I believe PCR-clean simply means that there are no DNases or RNases on the item, but they still could have nucleic acid on them. Essentially there is nothing on them that would interfere with nucleic acid amplification achieved with PCR, but any genetic material they may have will be amplified. Sterile means that there is absolutely no genetic material on the item itself (usually achieved via autoclaving where the temperatures climb so high that they would denature the DNases and RNases anyway). Nutshell: PCR-clean = wiping with RNA away and DNA away Sterile = bleaching and autoclaving
organic compund
a non renewable item is natural gas a renewable item is clean fresh water a inexhaustible item is ocean and air
wisp
Clean the floor
Its a very small item u use 4 cooking
An item at a store that is small enough to conceal and be stolen. Pilfer - to steal.
An etchant is an acid that is used in etching. The chemical composition varies with the item to be etched but all are acid based.