What Do These Symbols Mean?

After that ridiculous 6.8-MB download of an 82-page colored catalog, I couldn't find the H and X you are talking about. Elephino, unless H = hydrogen and X = xenon.

X may be this meaning http://images.search.yahoo.com/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3F_adv_prop%3Dimage%26b%3D1%26ni%3D21%26va%3Dchemicals%2Bhazardous%2Bsymbol%26xargs%3D0%26pstart%3D1%26fr%3Dyfp-t-701&w=500&h=500&imgurl=0.tqn.com%2Fd%2Fchemistry%2F1%2F7%2FH%2Fd%2Fharmfulirritant.jpg&rurl=http%3A%2F%2Fchemistry.about.com%2Fod%2Fhealthsafety%2Fig%2FLaboratory-Safety-Signs%2FHarmful-or-Irritant.htm&size=10KB&name=This+is+the+haza...&p=chemicals+hazardous+symbol&oid=046320539914295b2bcb10c610947882&fr2=&no=9&tt=6860&b=1&ni=21&sigr=12t0r9hea&sigi=11h7tukf3&sigb=142846hpj&.crumb=FRPNWkf.Dcp But what is the meaning of H?

1. You could have written to the company "Biofords" asking for explanation.

2. You could have looked into OSHA standards it was clear that it would belong to them since some of the symbols are clearly from them like skull and bones for poisonous, or the inflammable symbol.

3. You could have gone to home page and looked at it for the explanation.

I did use the last option and there was one introduction

http://www.biofords.com/IMG/pdf/Introduction.pdf

whose summary says "Includes warranty, and risk & safety information, as well as ..."

and Bingo , it was there embedded in its 17 odd MBs on page 5

Was it too complicated ?