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Quaternary Ammonium Sanitizer Concentration Test Strips [0～1000 ppm] Intended Use: This method is suitable
for on-site rapid test of quaternary ammonium concentration in quaternary
ammonium sanitizer. E.g. testing single-chain or double-chain quaternary
ammonium such as cetyl trimethyl ammonium bromide, double decyl dimethyl
ammonium chloride, tetradecyl dimethyl benzyl ammonium chloride, etc. The
test range is 0～1000ppm
(mg/L). Instructions: 1）Loosen the lid of the box,
pull out the 2-3cm long test paper and tear it; 2）Soak the test paper in the disinfectant
for 1 to 2 seconds, and remove the excess liquid; 3）Compare the concentration
with the control color card in 8 seconds, and discard the test paper after 8
seconds； 4）Put the test paper box in a
self-sealing bag and seal it for storage. Quaternary Ammonium Sanitizer Concentration Test Strips [0～4000 ppm] Intended Use: This method is
suitable for on-site rapid test of quaternary ammonium concentration in
quaternary ammonium sanitizer. E.g. testing single-chain or double-chain
quaternary ammonium such as cetyl trimethyl ammonium bromide, double decyl
dimethyl ammonium chloride, tetradecyl dimethyl benzyl ammonium chloride,
etc. The test range is 0～4000ppm (mg/L). Instructions: 1）Loosen the lid of the box,
pull out the 2-3cm long test paper and tear it; 2）Soak the test paper in the
disinfectant for 1 to 2 seconds, and remove the excess liquid; 3）Compare the concentration with
the control color card in 5 seconds, and discard the test paper after 5
seconds； 4）Put the test paper box in a
self-sealing bag and seal it for storage.
Instructions for use of residual chlorine quick test kit 1）Determination of free
residual chlorine in drinking water. 2）Determination of residual
chlorine in artificial swimming pool water. 3）Determination of residual
chlorine concentration on the surface of utensils disinfected with
chlorine-containing decontamination agent in catering industry. 1）Add water samples to both the narrow and wide pools of the
colorimetric dish up to the mark, 2）Put a reagent into a narrow pool, cover it,
and shake it up and down for about 60 seconds. 3）Stand still for about 10 seconds (no more than 60 seconds) to
precipitate the undissolved particles, 4）Use a hollowed out board to find the same or similar color scale on
the narrow pool and the color chart. The reading on this color scale is the
content of free residual chlorine in the water sample in ppm (mg/L). 5）If the reading exceeds 1.0mg/L, take 1.0ml of water sample into a
narrow pool, dilute with pure water to the 10ml mark, and then measure. The
reading result is multiplied by 10 to obtain the residual chlorine content in
the water in ppm (mg/L). [Notes] When the chlorine concentration is too high, the test solution is yellow
or not colorless. The sample solution should be diluted before measuring, and
the reading result should be multiplied by the dilution multiple. [Product Storage] Reagents should be stored under closed light, at room temperature, or
refrigerated, Instructions for the use of chlorine dioxide quick test
kit [Scope of Application] Suitable for on-site rapid testing of chlorine
dioxide concentration in water after chlorine dioxide disinfection. [Operation Method] 1）Add water samples to both
the narrow and wide cells of the cuvette until they reach the mark, 2）Drop 3 drops of reagent A into
the narrow pool, cover it, flip it up and down, and gently shake it to mix
the reagent well, 3）Add one particle of reagent
B to the narrow pool, cover it, flip it up and down, and gently shake it for
about 60 seconds, 4）Let it stand still for about
10 seconds (not more than 60 seconds) to allow undissolved particles to
settle, 5）Use a hollow board to find
the same or similar color scale on the narrow pool and color comparison card.
The reading on this color scale is the content of chlorine dioxide in the
water sample, ppm (mg/L). [ Attention] 1）If the reading exceeds
2.0mg/L, 1.0ml of water sample can be taken into a narrow cell, diluted with
pure water to 10ml of the scale line, and then measured. The reading result
multiplied by 10 is the chlorine dioxide content in the water, mg/L. 2）When the concentration of
chlorine dioxide is greater than 10 mg/L, the test solution shows yellow or
no color. The sample should be diluted before measurement, and the reading
should be multiplied by the dilution factor. [ Product Storage] Reagents should be stored under closed
light, at room temperature, or refrigerated.
Rapid determination of available chlorine (instructions for chlorine test paper) [scope of application] this method can
be used for the rapid test of effective chlorine content in chlorine
containing disinfectants, with the test range of 10 ~ 2000ppm (mg / L). [Operation steps] 1）gently rotate the box cover
and draw out the test paper with a length of 2 ~ 3cm, 2） Immerse the test paper in
disinfectant for 1-2 seconds, remove and shake off excess liquid; 3）Compare and quantify with
the color chart within 10 seconds; 4）gently rotate the box cover,
block the test paper, and put it back into the self sealing bag for storage. [remarks] The test paper
should be stored in a cool and dry place. On site rapid detection of surface cleanliness of catering utensils Instructions for using the cleanliness detection card [ Scope of Application] This method is
suitable for on-site rapid detection of the cleanliness and hygiene status of
catering utensils, food processing utensils, and operating countertops. [ Detection Principle] If dining utensils
and food processing utensils are not cleaned thoroughly, there will often be
protein residues. Protein is a breeding ground for microorganisms and a
component of bacteria. This method utilizes the principle that specific
reagents can react with residual proteins on the surface of an object to
produce color, in order to determine whether the surface of the object is
hygienic and the degree of hygiene. [ Operation Method] 1）Drop
2 drops of wetting agent onto the surface of the tested object. 2）Take
out a piece of testing card, peel off the surface film of the test paper,
face the area where the wetting agent is added, and cross and wipe back and
forth in an area of 10 × 10cm. 3）Place
the wiped test card flat with the test paper facing upwards. 4）Drop
1 drop of developer onto the test paper, and within 3 minutes, compare the
color of the test paper with the reference color card. 5）The
comparison results are divided into clean, slightly unclean, unclean, and
deeply unclean. [ Precautions] 1）Each
detection card is disposable. 2）Do
not touch the testing area of the test strip with your hands. 3）If
there is liquid on the surface of the object to be inspected, wait until the
liquid is slightly dry before conducting the inspection. 4）This
product is valid for 12 months when stored at room temperature. 5）Product configuration: 50 quick test
cards, 1 bottle of wetting agent and 1 bottle of color developer, and 1 color
control card.
Nitrite 0～100
ppm test paper 【Scope of Application】 This
test strip is suitable for on-site rapid detection of nitrite content in food
and water. 【Instructions】 1) Dip test strip
into test solution for 2-3seconds. 2) Remove and
shake off excess liquid . 3) Wait 60 seconds
, then compare test pad with color chart . 【 Result Calculation 】 1) Nitrite content
in liquid samples: is the number indicated next to the color chart. 2) Nitrite content
in solid or semi-solid samples: Multiply the number marked next to the color
card by the dilution factor of the sample. 3)Nitrite content
in food: calculated as NaNO2. 4) Nitrite content
in water: Calculated in N, divide the number marked next to the color chart
by 5. 【 Precautions 】 1）After
decolorizing the colored sample, measure it or dilute it with pure water to
colorless or light color before testing. 2）This
method is a rapid on-site detection method, and accurate quantification is
based on national standard methods. 3）Store
in a cool and dry place.
Produced by
Beijing Shian Xunda Technology Co., Ltd., China E-mail：bjzw@vip.163.com |
