Brochure

NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227
TECH SERVICES PH: 1.888.446.4226 • FAX: [phone] • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: [phone]
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AHEAD OF THE FLOW
®
Revised 2/5/2013
This standard covers dimensions, tolerances, and gaging of
tapered pipe threads used on plastic ends of pipe and fittings.
ASTM Standard F 1970
This standard covers fittings and appurtenances intended to be
used in PVC or CPVC plastic piping, or as a transition from such
systems to metal systems. These products, such as unions,
flanges, or valves, are not included in the scope of other ASTM
specifications.
ASME B1.20.1 (American Society of Mechanical
Engineers)
This specification details the dimensions, tolerances, and gag-
ing of tapered pipe threads used on metallic ends of pipe and
fittings, plus machined plastic threaded ends.
ANSI/NSF Standard 14 (NSF International, for-
merly National Sanitation Foundation)
This standard establishes the minimum physical and perfor-
mance requirements for plastic piping system components and
related materials. It also provides a basis for certification of
products to consensus standards, or other physical and per-
formance requirements where no consensus standard exists.
It requires adherence to appropriate ASTM Standards and
specifies minimum quality control programs. To comply with
this standard the manufacturer must allow periodic testing of
product and auditing of procedures by a third-party agency.
ANSI/NSF Standard 61
At the request of the U.S. Environmental Protection Agency (EPA),
a consortium led by NSF International developed this standard.
It was developed to establish minimum requirements for the
control of potential adverse human health effects from products
which contact drinking water. This Standard complements the
performance requirements that are contained within ASTM
product standards. NIBCO PVC & CPVC fitting products intended
for potable water applications are tested and certified by a third-
party agency for compliance to ANSI/NSF Standard 61.
CSA (Canadian Standards Association)
CSA tests piping products against Canadian standards. These
standards require that products meet certain criteria such as
dimensions, strength, and compatibility with potable water. Most
products sold in Canada require the CSA listing.
IAPMO (International Association of Plumbing and
Mechanical Officials)
IAPMO is responsible for the Uniform Plumbing Code (UPC).
Products listed by IAPMO are tested by third-party organiza-
tions and/or meet PS (Product Standards) or IS (Installation
Standards) which are written by IAPMO. Listed products will
contain the UPC or IAPMO-T (1¹⁄
2
" sizes for mobile home and
recreational vehicle (MHRV) use) mark.
Chemical Resistance
Thermoplastics exhibit a ‘GO’ or ‘NO-GO’ type of resistance when
contacted by aggressive chemicals. That is, they either resist attack
completely or they deteriorate rapidly, in which case, the mecha-
nism of attack is either solvation or reaction with the base molecule.
Solvation, which is the most common form of attack, involves pen-
etration of a chemical into the plastic causing softening, swelling,
and loss of physical properties. Reaction with the base molecule
involves the breakage of the molecular chain, crosslinking, or sub-
stitution reactions.
The NIBCO Chemical Resistance Guide contains specific chemi-
cal resistance information for the various plastic and elastomeric
materials used in the NIBCO product line. When interpreting the
information presented in this brochure it is important to note that it
is based only on unstressed immersion testing at the temperatures
noted, using pure chemicals or saturated solutions, except where
otherwise specified. It is unwise to specify a plastic material with-
out chemical resistance information relative to the specific environ-
ment of the intended application. Therefore, in situations where
the aggressive environment involves a mixture of chemicals, the
Chemical Resistance Guide can be used to investigate the effects
of individual chemicals; however, because of possible synergisms,
the suitability of a particular plastic for handling a chemical mixture
should be verified. Also, since chemicals are more aggressive at
higher temperatures and concentrations, chemical resistance infor-
mation should not be extrapolated to higher temperatures and con-
centrations. Conversely, chemicals are generally less aggressive at
lower temperatures and concentrations; therefore, extrapolation of
chemical resistance information to lower temperatures and concen-
trations is generally acceptable.
When chemical resistance information is not available or a first-of-
a-kind process is involved, data may be obtained through immersion
testing. ASTM D 543 provides a method for conducting such tests,
and the chemical, as well as, the temperature used in this test
should be identical to the anticipated process condition.
Material Selection
Plastic Piping Standards and Chemical Resistance