High propagation delay time (The time between the specified reference points on the input and output waveforms with the output changing from the defined low level to the defined high level.)
HE
Heavy Silicates
HF
Hardness
HG
Heavy Sulfides
HH
Heavy Globular Oxides
HI
Hafnium
HJ
Holmium
HM
Height, Maximum
HO
Holes
HP
Height of Tread Plate Pattern
HR
Height of Runners
HT
Height
HZ
Hazepoint
IA
Iron
IB
Impact Energy
IC
Incremental Distance
ID
Inside Diameter
IF
Input Low Voltage
IG
Granulated Ingot Size
IH
Input Current
II
Input Setup Time
IJ
Input Hold Time
IK
Indium
IM
Iridium
IN
Input Low Current (The current flowing out of an input when a specified low level voltage is applied to that input.)
IO
Input High Current (The current flowing out of an input when a specified high level voltage is applied to that input.)
IP
Input Leakage Current (The current flowing into an input when the maximum allowed voltage is applied to the input.)
IQ
Input Clamp Diode Voltage (The most negative voltage at an input when the specified current is forced out of that input terminal.)
IR
Ideal Diameter
IS
Input High Voltage
IT
Interrupt Pulse Period
IU
Interrupt Setup Time
IV
Iodine
IW
Incrustation Factor
IX
Inside Diameter, Minimum
IY
Induction (Magnetic Force)
IZ
Ingot Pound Size
JA
Junction Temperature
KA
Knoop
KB
Krypton
KN
K&N Holdout
L
Legal Weight
LA
Lanthanum
LB
Lithium
LC
Low Propagation Delay Time (The time between the specified reference points on the input and output waveforms with the output changing from high level to the defined low level.)
LD
Lawrencium
LE
Lutetium
LF
Long Fibers
LG
Leg
LL
Long Leg
LM
Length, Maximum
LN
Length
LO
Long Length
LP
Camber of Pattern Line
LPG
Liquified Petroleum Gas Factor
LS
Short Leg
LT
Lengthwise Spacing
LW
Long Width
M
Minimum Weight (for Weight)
MA
Mean Average
MB
Mendelevium
MC
Min./Max Cuttable Width
MD
Measurement Voltage (The reference voltage level on AC waveforms for determining AC performance.)
ME
Maximum Input Low Voltage (The guaranteed input low threshold.)
MEF
Meter Factor
MF
Minimum Input High Voltage (The guaranteed input high voltage.)
MG
Mercury
MH
Melting Point
MI
Minimum
MJ
Major Section (Stepped)
MK
Microseperometer (MSEP)
MN
Minimum Average
MO
Mottles
MP
Mullen Pop
MS
Minor Section (Stepped)
MT
Moisture Content
MU
Multiplier
MV
Maximum Average
MW
Molecular Weight
MX
Maximum
MY
Magnetizing Field
N
Actual Net Weight
NA
No. per Package
NB
No. per Bundle
NC
No. per Coil Group
ND
Neodymium
NE
Niobium
NF
Neon
NG
Nobelium
NH
Number of Items per Package Label
NI
Number of Splices per Package Label
NJ
Number of Sheets per Package Label
NK
Nesting Factor
NL
No. per Lift
NM
No. Pkgs. per Master Pack
NO
Nominal (Target, Aim)
NP
Percent of Specified
NS
No. per Skid
NU
No. per Unit
O
Excess Weight Over Maximum
OA
Offset
OAP
Observed American Petroleum Institute Gravity
OB
Osmium
OBT
Observed Temperature
OC
Output Low Voltage (The maximum guaranteed low voltage at an output terminal sinking the specified load current output low current.)
OD
Outside Diameter
OE
Output Low Current (The current flowing into an output which is in the low state.)
OF
Output High Voltage (The minimum guaranteed high voltage at an output terminal for the specified output current `output high current' and at the minimum VCC value.)
OG
Output High Current (The leakage current flowing into a turned off open collector output with a specified high output voltage applied.)
OH
Overhead Height, Receiving Door
OI
Output Off Current Low (The current flowing out of a disabled 3-state output with a specified low output voltage applied.)
OJ
Output Off Current High (The current flowing into a disabled 3-state output with a specified high output voltage applied.)
OK
Output Short-Circuit Current (The current flowing out of an output which is in the high state when that output is short circuit to ground.)
OL
Output Disable Time From Low Level of a 3-State Output (The delay time between the specified reference points on the input and output voltage waveforms with the 3-state output changing from the low level to a high impedance `off' state.)
OM
Outside Diameter, Maximum
ON
Output Disable Time From High Level of a 3-State Output (The delay time between the specified reference points on the input and output voltage waveforms with 3-state output changing from the high level to a high impedance `off' state.)
OO
Output Enable Time From Low Level of a 3-State Output (The delay time between the specified reference points on the input and output voltage waveforms with the 3-state output changing from the high impedance `off' state to the low level.)
OP
Openness
OQ
Output Enable Time From High Level of a 3-State Output (The delay time between the specified reference points on the input and output voltage waveforms with the 3-state output changing from high impedance `off' state to the high level.)
OR
Distance Between Outside Runners
OS
Open Circuits
OT
Output Delay Time
OV
Opacity
OW
Overall Width
OX
Ownership Share
PA
Package Separation
PB
Pressure
PC
Per Hundred Linear Yards
PD
Platinum
PE
Potassium
PF
Promethium
PG
Polonium
PH
Pulse Setup Time (The interval immediately preceding the active transition of the timing or preceding the transition of the control input to its latching level.)
PI
Pulse Hold Time (The interval immediately following the active transition of the timing pulse or following the transition of control input to its latching level.)
PJ
Pulse Width (The time between the specified reference points on the leading and trailing edges of a pulse.)
PK
Pulse Recovery Time (The time between the reference point on the trailing edge of an asynchronous input control pulse and the reference point on the activating edge of a synchronous pulse input such that the device will respond to the synchronous input.)
PL
Percent Defective
PM
Practice
PN
Palladium
PO
Percent of Order
PP
Powder/Paste Package Size
PQ
Plutonium
PR
Praseodymium
PRF
Pressure Factor
PRL
Product Level
PRY
Porosity
PS
Protactinium
PSA
Percent Solution Actual
PT
Pits
PU
Pressure Base
PV
Picks
PW
Purchased Width
PX
Purity
PY
Percent of Water
PZ
Pipe Size Nominal
QA
Quality Index
R
Per Unit Dunnage
RA
Relative Humidity
RAF
Roof Adjustment Factor
RB
Range Value
RC
Radius of Corner
RD
Readpoint
RE
Ream Weight
RF
Resistivity
RG
Radium
RH
Rhenium
RI
Rubidium
RJ
Rockwell-C
RK
Rockwell-B
RL
Reduction Ration
RM
RMS Range (Side 1)
RN
Required Interrupt Release
RO
Reset Pulse Width
RP
Reduction of Area
RQ
Radon
RR
Reduction Ratio
RS
RMS Range (Side 2)
RT
Rounds Ammunition/Military
RU
Rhodium
RV
Ruthenium
RVP
Reid Vapor Pressure
RW
Rolling Width
RX
Ridges
RY
Ratio
S
State Weight
S1
Smoothness
S2
Selvedge on Beam
S3
Sheffield Smoothness
S4
Surface Strength
S5
Stiffness
S6
Saturation
S7
Sediment
S8
Solubility
SA
Sort Code CIE LAB
SB
Sort Code CMC
SC
Schedule Number (Pipe Size)
SD
Strength
SE
Selvage Left
SF
Samarium
SG
Selenium
SH
Strontium
SI
Supply Current (The current flowing into the VCC supply terminal of the circuit with specified input conditions and open outputs.)