QB/T 4348-2012Cleaner for kitchen stains and grease (English PDF)

Foreword

The standard was drafted in accordance with the rules given in GB/T 1.1-2009

Directives for standardization – Part 1. Structure and drafting of standards.

This standard was proposed by China Light Industry Association.

This standard shall be under the jurisdiction of National Centre for

Standardization of Detergent Products.

The drafting organizations of this standard. Beijing Green Umbrella Chemical

Co., Ltd., China Daily Chemical Industry Research Institute/National detergent

quality supervision & inspection centre.

1 Scope

This standard specifies the requirements, test methods, inspection rules,

marking, packaging, transport and storage of kitchen grease stain detergent.

This standard is applicable to the liquid detergent products which are prepared

by various surface active agent, auxiliary, and solvent AND used for the

cleaning and decontamination of all kinds of hard surfaces in kitchen.

This standard does not apply to solid kitchen grease stain detergent products.

2 Normative references

The following documents are essential to the application of this document. For

the dated documents, only the versions with the dates indicated are applicable

to this document; for the undated documents, only the latest version (including

all the amendments) are applicable to this standard.

GB/T 6368 Surface active agents – Determination of pH of aqueous solution

– Potentiometric method

GB/T 6682 Water for analytical laboratory use – Specification and test

methods

GB/T 7378 Surface active agents – Determination of alkalinity – Titrimetric

method

GB/T 13173-2008 Surface active agents – Detergents – Testing methods

GB/T 26396-2011 Technical specification for safety of soaps and detergents

QB/T 2117-1995 General water-based metal detergents

QB/T 2951 Inspection rules for detergent products

QB/T 2952 Requirements for detergent marks and packaging

JJF 1070 Rules for metrological testing for net quantity of products in

prepackages with fixed content

The State Administration of Quality Supervision, Inspection and Quarantine's

Directive [2005] No.75 - Measures for the measurement and supervision of

products in prepackages with fixed content.

3 Requirements

165 mm x 125 mm;

j) Plastic beaker 250 mL.

k) Glass beaker, 300 mL, Phi (80 ± 1) mm OR the other beaker types of same

diameter;

l) Glass culture dish, Phi 90 mm;

m) Tray, ceramic or stainless steel;

n) Dryer, built-in allochroic silica gel;

o) Analytical balance, maximum weighing is 200 g AND sensitivity is 0.0002

g;

p) Balance, maximum weighing is 500 g AND sensitivity is 0.01 g;

q) Stopwatch.

A.4 Test procedure

A. 4.1 Artificial stain preparation

Formula. soybean oil 64.0 g, nitrogen free caramel pigment 8.0 g, wheat flour

30 °C; ADD nitrogen free caramel pigment; at the speed not less than 1000

r/min, STIR it for 30 min; after they are emulsified uniformly, ADD the wheat

flour; STIR them for another 10 min; MAKE it subject to aging for 24 h;

PRESERVE it in refrigerator freezer for use; before use, MAKE its temperature

reach to 20 ~ 25 °C.

M1 – The mass of the stained test piece before being washed, in the unit of

gram (g);

M2 – The mass of the stained test piece after being washed, in the unit of

gram (g);

USE the Grubbs method to remove the suspected data, BUT at least retain four

data; USE the arithmetic mean of the retained data as the final detergency.

A.4.5 Precision

Under the repeated conditions, the absolute difference between the obtained

two independent measurement results is not more than 3%; AND the

preconditions are based wherein the said difference is not more than 5% if it

exceeds 3%.

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