flammable: for the purposes of this Code, describes
a fluid which under ambient or expected operating
conditions is a vapor or produces vapors that can be
ignited and continue to burn in air. The term thus may
apply, depending on service conditions, to fluids defined
for other purposes as flammable or combustible.
fluid service: a general term concerning the application
of a piping system, considering the combination of
fluid properties, operating conditions, and other factors
which establish the basis for design of the piping
system. See Appendix M.
(a) Category D Fluid Service: a fluid service in
which all the following apply:
(1) the fluid handled is nonflammable, nontoxic,
and not damaging to human tissues as defined in para.
300.2;
(2) the design gage pressure does not exceed 1035
kPA (150 psi); and
(3) the design temperature is from −29°C (−20°F)
through 186°C (366°F).
(b) Category M Fluid Service: a fluid service in
which the potential for personnel exposure is judged
to be significant and in which a single exposure to a
very small quantity of a toxic fluid, caused by leakage,
can produce serious irreversible harm to persons on
breathing or bodily contact, even when prompt restorative
measures are taken
(d) High Pressure Fluid Service: a fluid service for
which the owner specifies the use of Chapter IX for
piping design and construction; see also para. K300
(f) Normal Fluid Service: a fluid service pertaining
to most piping covered by this Code, i.e., not subject
to the rules for Category D, Category M, or High
Pressure Fluid Service
full fillet weld: a fillet weld whose size is equal to
the thickness of the thinner member joined
fusion: the melting together of filler material and base
material, or of base material only, which results in
coalescence
gas metal-arc welding (GMAW): an arc-welding process
which produces coalescence of metals by heating
them with an arc between a continuous filler metal
(consumable) electrode and the work. Shielding is obtained
entirely from an externally supplied gas, or gas
mixture. Some variations of this process are called
MIG or CO2 welding (nonpreferred terms)
gas tungsten-arc welding (GTAW): an arc-welding
process which produces coalescence of metals by heating
them with an arc between a single tungsten (nonconsumable)
electrode and the work. Shielding is obtained
from a gas or gas mixture. Pressure may or may not
be used and filler metal may or may not be used.
(This process has sometimes been called TIG welding.)
gas welding: a group of welding processes wherein
coalescence is produced by heating with a gas flame
or flames, with or without the application of pressure,
and with or without the use of filler material
flammable: for the purposes of this Code, describesa fluid which under ambient or expected operatingconditions is a vapor or produces vapors that can beignited and continue to burn in air. The term thus mayapply, depending on service conditions, to fluids definedfor other purposes as flammable or combustible.fluid service: a general term concerning the applicationof a piping system, considering the combination offluid properties, operating conditions, and other factorswhich establish the basis for design of the pipingsystem. See Appendix M.(a) Category D Fluid Service: a fluid service inwhich all the following apply:(1) the fluid handled is nonflammable, nontoxic,and not damaging to human tissues as defined in para.300.2;(2) the design gage pressure does not exceed 1035kPA (150 psi); and(3) the design temperature is from −29°C (−20°F)through 186°C (366°F).(b) Category M Fluid Service: a fluid service inwhich the potential for personnel exposure is judgedto be significant and in which a single exposure to avery small quantity of a toxic fluid, caused by leakage,can produce serious irreversible harm to persons onbreathing or bodily contact, even when prompt restorativemeasures are taken(d) High Pressure Fluid Service: a fluid service forwhich the owner specifies the use of Chapter IX forpiping design and construction; see also para. K300(f) Normal Fluid Service: a fluid service pertainingto most piping covered by this Code, i.e., not subjectto the rules for Category D, Category M, or HighPressure Fluid Servicefull fillet weld: a fillet weld whose size is equal tothe thickness of the thinner member joinedfusion: the melting together of filler material and basematerial, or of base material only, which results incoalescencegas metal-arc welding (GMAW): an arc-welding processwhich produces coalescence of metals by heatingthem with an arc between a continuous filler metal(consumable) electrode and the work. Shielding is obtainedentirely from an externally supplied gas, or gasmixture. Some variations of this process are calledMIG or CO2 welding (nonpreferred terms)gas tungsten-arc welding (GTAW): an arc-weldingprocess which produces coalescence of metals by heatingthem with an arc between a single tungsten (nonconsumable)electrode and the work. Shielding is obtainedfrom a gas or gas mixture. Pressure may or may notbe used and filler metal may or may not be used.(This process has sometimes been called TIG welding.)gas welding: a group of welding processes whereincoalescence is produced by heating with a gas flameor flames, with or without the application of pressure,and with or without the use of filler material
การแปล กรุณารอสักครู่..