8 months ago. Hi I'm having all pregnancy symptoms but negative test. I missed my period for Jan. 2015 I spotted a few days out the month however. I have nausea sore breast and im even showing a lil baby bump but after every kind of test they all say negative. months ago. Hi I'm having all pregnancy symptoms but negative test. I missed my period for Jan. 2015 I spotted a few days out the month however. I have nausea sore breast and im even showing a lil baby bump but after every kind of test they all say negative.
Shout Color Catcher did work but I had a severe allergic reaction. The color catcher is such a time saver. I no longer have to waste my time sorting and organizing my clothes prior to washing my clothes. Shout is a great brand and color catcher is great on clothes, i love this product.
A colorimeter is an instrument which compares the amount of light getting through a solution with the amount which can get through a sample of pure solvent. Substances absorb light for a variety of reasons. Pigments absorb light at different wavelengths. A cloudy solution will simply scatter/block the passage of light (sometimes a colorimeter is used to monitor the growth of a bacterial or yeast culture). The % transmission or the % absorbance is recorded (you can use either). It is possible to change the colour of the light that is used by using filters in the simplest equipment or an optical wedge in more sophisticated meters. The best way to see how a colorimeter works is to use one. There are many different types.