SN/T 3879-2014Safety requirements and test methods for child-resistance for lighters (English PDF)

4.2 For lighters that prevent children from opening by increasing the operating force

(resistant compression lighters), there is no requirement that a child test team be used to test their safety, BUT they shall meet the following technical parameter requirements:

a) Push-button lighter: 42 N (pressing force);

b) Lever lighter: 40 N (pressing force);

c) Incline lighter: 20 N (rebound force);

d) Grinding wheel lighter: The spark occurrence rate shall not be greater than 40%.

4.3 Lighters that are operated to prevent children from being opened shall be tested by a child test team; the lighter shall be able to prevent 85% of children from opening. See

Chapter 5 for specific test methods.

months;

- If the date difference exceeds 15 (such as 16, 17), add 1 month;

- If the date difference is less than -15 (such as -16, -17), then subtract one month, for example: 50 months - 1 month = 49 months;

- If the date difference is between -15 ~ 15 (such as -15, -14…14, 15), it will neither add nor reduce one month.

5.1.4 Children with long-term illness, temporary illness, injury, or any other condition

that may affect the test results are not allowed to participate in the test.

5.1.5 Two children participate in the test of surrogate lighters at the same time.

5.1.6 Each child may not participate in more than one test group, or test more than one surrogate lighters. Children cannot participate in other child-resistant packaging tests on the same day.

5.2 Testing location, environment, testers

5.2.1 Test location

5.2.1.1 Surrogate lighters need to be tested within the territory of the People’s Republic of China.

5.2.1.2 Each test group is tested at 5 or more locations. The testing location can be a nursery, kindergarten or full-time care center where the children participating in the test are located. No more than 20 children will be tested at each testing location.

5.2.1.3 If the children in the test group come from different areas, they will be concentrated in one or more testing locations.

5.2.2 Test environment

Surrogate lighters shall be tested in the following environments:

a) In a room that is familiar to the child (for example, a room in a nursery or kindergarten where the child often attends);

b) In places that may be unfamiliar to children, testers shall allow children at least 5 minutes to familiarize themselves with the new environment before starting the test;

c) The environment of the test area shall be bright and away from entertainment facilities;

d) Two children shall sit side by side on chairs approximately 15 cm apart and a table away from the tester. Children are free to play with their surrogate lighters as long as the testers could see them at the same time. Test tables and chairs shall be child- friendly, so that they can have their feet on the floor and their arms resting comfortably on the table.

5.2.3 Testers

Testers are required to be over 18 years old and familiar with the language of the testing location. They shall receive unified training, including demonstrating actions and using words for children. Each test group requires 5 or 6 testers, with each tester testing approximately the same number of children.

5.3 Surrogate lighters

5.3.1 All surrogate lighters must have the same color; the force required to open them shall be consistent with the officially sold product.

5.3.2 Each test group shall ensure that 6 intact surrogate lighters are used for testing.

The surrogate lighters shall not be exposed to excessive heat or cold during the test.

Surrogate lighters can be used with multiple test groups.

5.3.3 Each surrogate lighter is tested on the same number of children within the test group, approximately (17 ± 2) children. If the surrogate lighter is damaged during testing, proceed with the remaining surrogate lighter.

5.3.4 Before testing begins, each surrogate lighter is inspected to confirm that it has the same appearance, size, shape, weight as the officially marketed product.

5.3.5 Before and after the test, the force required to turn on each surrogate lighter shall be checked, to confirm that it is within a reasonable range and will not affect the test results of normal operation by children.

5.3.6 Before and after testing the surrogate lighter with each child, each surrogate

lighter shall be inspected, to confirm that it produces a clearly identifiable signal when turned on. If it is found before the test begins that it does not produce a signal when turned on, the surrogate lighter shall be repaired before testing. If it is found after the test that it cannot generate a signal when turned on, the test results of the surrogate lighter will not be included in the test results. Once the surrogate lighter is repaired, it can be tested on additional qualified children to complete the test.

5.4 Encouragement

5.4.1 The language used during the test shall be the main language used in the area where the test is conducted.

5.4.2 During the testing process, the tester shall use a friendly and calm tone of voice to make the children feel friendly and trustworthy.

surrogate lighter and then says: "Try to use your lighter to make noises. Please keep trying until I say stop.”

5.6.3 The tester shall observe the child being tested for 5 minutes; then make a judgment as to whether the child under test can successfully operate the surrogate lighter to generate a signal. If a child produces a spark by operating the anti-child operation device without it being turned on, the tester shall say to the child: "That's a spark, it won't hurt you, try making a sound with your lighter." If any child successfully completes the operation during this period, the surrogate lighter shall be taken away from the child and the child shall not be asked to do so again. The tester shall ask the child to stay, until other children in the group have completed the procedure.

5.6.4 If a test child fails to successfully complete the operation of the surrogate lighter within the time specified in 5.6.3, the tester shall demonstrate it to the child. See

Appendix A for details of the demonstration.

5.6.5 If the requirements of Appendix A are not followed during the demonstration process for two children, the test results of these two children will not be recorded; the test will be completed by the other two children.

5.6.6 If a test child fails to successfully operate the surrogate lighter within 5 minutes, give him or her another 5 minutes to test after completing the demonstration. At this time, the surrogate lighter is returned to each child, and then said: "Now you can try to make sound with your lighter, stop when I say stop."

5.6.7 If any child successfully completes the operation during this period, the surrogate

lighter shall be removed from the child and the child shall not be required to operate the surrogate lighter again. The tester shall ask the child to stay, until other children in the group have completed the procedure.

5.6.8 At the end of the second 5-minute test, retrieve the surrogate lighter from the child who failed to successfully operate the surrogate lighter.

5.6.9 After the test, the tester shall say to the children: "This is a special lighter that does not produce a flame. A real lighter will burn you. Can you promise me that you will never play with a real lighter?" After receiving reassurance from both children, thank them for their help and remove the children from the testing room.

5.6.10 On the day the test is completed, inform their parents or guardians in writing of the test situation; ask their parents or guardians to warn the children not to play with real lighters. At the same time, parents or guardians of children are reminded to keep lighters or related products (whether with or without child-resistant devices) out of the reach of children.

5.7 Data collection and recording

5.7.1 In addition to recording the number of successful operations by children, recording of other data when children operate the lighter shall be avoided, so that the tester can concentrate on the child during the test.

5.7.2 If video recording is required during the test, in order not to divert children's attention, the camera is required to be fixedly placed and operated in a hidden location.

5.7.3 After the test is completed, all image data shall be used to record the actual test process (for example, demonstration actions, etc.). The following relevant data shall be collected and recorded from children participating in the test:

a) Gender (male or female);

b) Date of birth (year, month, day);

c) Age (accurate to the month, calculated according to the requirements of 5.1.3);

d) The number of lighters tested by children;

e) Test date (year/month/day);

f) Test location (city and country name, or location code or writing credit code that can be used to prove the test location);

g) The name of the tester who performed the test;

h) Record the time it takes the child to successfully operate the surrogate lighter during the first 5 minutes of testing (accurate to the second);

i) Within the specified time of the test, the time it takes for the test child to successfully operate the surrogate lighter within the second 5 minutes (accurate to the second);

j) From the 100 children who participated in the test, select a pair of images and videos of children as examples:

- The way the tester holds the surrogate lighter;

- The direction of the tester’s hands;

- The direction in which the tester faces the child's body and hands when demonstrating.

5.8 Result judgment

In order to determine whether the surrogate lighter can prevent children from turning on by 85%, a test group will be formed for every 100 children; the upper limit of the test will be 2 test groups. The test results are judged as follows, see Table 2 for details:

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