HAZARDOUS AIR POLLUTANTS
HOT AIR SOLDER LEVELING
A chromium deposit which is more than 100 uin. (2.5 um) thickness. Compared to decorative chromium, the bath usually
has a higher chromium concentration and is operated at a higher temperature and current density.
A high strength nickel-based steel alloy with excellent corrosion resistance.
HAZARD AND OPERABILITY
HAZARDOUS WASTE OPERATIONS AND EMERGENCY RESPONSE REGULATIONS
HAZARDOUS WASTE REMEDIAL ACTION PROGRAM
HAZARDOUS COMMUNICATION STANDARD
HIGH DENSITY POLYETHYLENE
HIGH EFFICIENCY PARTICULATE AIR PURIFYING RESPIRATOR EQUIPMENT
HEALTH EFFECTS RESEARCH LABORATORY
HOUSEHOLD HAZARDOUS WASTE
HIGH CARBON STEEL
Carbon steels containing 0.35% carbon or more. It has a high affinity for hydrogen and susceptible to hydrogen embrittlement.
HOT ISOSTATIC PRESSING
A histogram is a visual representation of the spread of dispersion of variables ( continuos ) data.
In histograms of natural data there is a tendency for many items to fall towards the center
of the distribution ( central tendency ), with progressively fewer items as you move from the center.
HAZARDOUS MATERIALS ADVISORY COUNCIL
HAZARDOUS MATERIALS IDENTIFICATION SYSTEM
HAZARDOUS MATERIALS REGULATIONS
HAZARDOUS MATERIALS TRANSPORTATION ACT
HAZARDOUS MATERIALS TRANSPORTATION AND UNIFORM SAFETY ACT
An abrasive or polishing operation which uses a fine grinding action. Frequently, the process uses a limestone medium in tumbling.
HIGH PRODUCTION VOLUME
HAZARD RANKING SYSTEM
HALOGENATED SOLVENTS INDUSTRY ALLIANCE
HAZARDOUS AND SOLID WASTE AMENDMENTS
A trapezoidal plating box with a volume of 267mL in which 4' panel the CATHODE (-)
is placed at 38 degrees to a dissolving ANODE (+); this angle creates a wide 'current density'
( ASF ) range to check the bath.
HIGH VOLUME LOW PRESSURE
HIGH-VELOCITY OXYGEN FUEL
HAZARDOUS WASTE DISPOSAL
HAZARDOUS WASTE ENGINEERING RESEARCH LABORATORY
HAZARDOUS WASTE IDENTIFICATION RULE
HAZARDOUS WASTE MANAGEMENT FACILITIES
HAZARDOUS WASTE TREATMENT COUNCIL
Embrittlement of a metal caused by absorption of hydrogen during cathodic pickling, electrocleaning or plating.
A surface that wets with water easily.