Wisconsin Legislature: NR 400.03(2)(am)

NR 400.03 Units and abbreviations. Abbreviations and symbols of units of measure used in chs. NR 400 to 499 are defined as follows:

(1) System international (SI) units of measure:

(a) “A” — ampere

(am) “g” — gram

(b) “Hz” — hertz

(bm) “J” — joule

(cm) “kg” — kilogram

(d) “kPa” — kilo pascal (1.0 kPa = 0.15 psia)

(dm) “m” — meter

(e) “m2” — square meter

(em) “m3” — cubic meter

(f) “mg” — milligram—10-3 gram

(fm) “Mg” — megagram—106 gram

(g) “mm” — millimeter—10-3 meter

(gm) “mol” — mole

(h) “MW” — megawatt

(hm) “MWe” — megawatt electrical

(i) “N” — newton

(im) “ng” — nanogram—10-9 gram

(j) “nm” — nanometer—10-9 meter

(jm) “Pa” — pascal

(k) “s” — second

(km) “V” — volt

(L) “W” — watt

(Lm) “μg” — microgram—10-6 gram

(m) “Ω” — ohm

(2) Other units of measure:

(a) “Btu” — British thermal unit

(am) “°C” — degree Celsius (centigrade)

(b) “cc” — cubic centimeters

(bm) “cfm” — cubic feet per minute

(cm) “d” — day

(d) “dcf” — dry cubic feet

(dm) “dcm” — dry cubic meters

(e) “dscf” — dry cubic feet at standard conditions

(em) “dscm” — dry cubic meters at standard conditions

(f) “eq” — equivalent

(fm) “°F” — degree Fahrenheit

(g) “ft” — foot

(gm) “ft2” — square feet

(h) “ft3” — cubic feet

(hm) “gal” — gallon

(i) “gr” — grain

(im) “hr” — hour

(j) “in” or ″ — inch

(jm) “in Hg” — inches of mercury

(k) “in H2O” — inches of water

(km) “l” — liter

(L) “lb” — pound

(Lm) “lpm” — liter per minute

(m) “mil” — 10-3 in

(mm) “min” — minute

(n) “ml” — milliliter — 10-3 liter

(nm) “mmBtu” — million Btu

(ns) “MPH” — miles per hour

(o) “mrem” — millirem — 10-3 rem

(om) “oz” — ounce

(p) “pCi” — picocurie — 10-12 curie

(pm) “ppm” or “ppmv” — parts per million (by volume)

(q) “psia” — pounds per square inch absolute

(qm) “psig” — pounds per square inch gauge

(r) “°R” — degree Rankine

(rg) “tpy” — tons per year

(rm) “v/v” — volume per volume

(s) “yd2” — square yards

(sm) “yr” — year

(t) “μl” — microliter—10-6 liter

(tm) “μm” — micrometer—10-6 meter (micron)

(3) Chemical nomenclature:

(a) “Be” — beryllium

(b) “CdS” — cadmium sulfide

(d) “CO2” — carbon dioxide

(e) “HCl” — hydrochloric acid

(f) “Hg” — mercury

(g) “H2O” — water

(h) “H2S” — hydrogen sulfide

(i) “H2SO4” — sulfuric acid

(j) “N2” — nitrogen

(k) “NO” — nitric oxide

(L) “NO2” — nitrogen dioxide

(m) “NOx” — nitrogen oxides

(n) “O2” — oxygen

(o) “Pb” — lead

(om) “SF6” — sulfur hexafluoride

(p) “SO2” — sulfur dioxide

(q) “SO3” — sulfur trioxide