GB/T 16810-2026Tests and requirements for the fire resistance of safes (English PDF)

4.1 Classification and Codes

4.1.1 Classification and Codes Based on the Operating Temperature of Stored Items Safes are classified and coded according to the operating temperature of the stored items, as specified in Table 1.

4.1.2 Classification and Codes by Fire Resistance Test Type Safes are classified and designated according to the type of fire resistance test, as specified in Table 2.

4.1.3 Classification and Codes by Additional Function Type Safes are classified and coded according to their additional functions as specified in Table 3.

4.1.4 Classification and Codes by Fire Resistance Test Time Safes are classified and designated according to their fire resistance test time, as specified in Table 4.

4.2 Fire resistance code The designation of fire resistance codes is shown in Figure 1.

5.2 Availability of stored items

5.2.1 Newsprint used for testing inside the safe refers to ordinary newsprint, magazine paper with or without a cover. Magazine paper without a cover... The pH of the paper surface should be less than 7.0.

5.2.2 Before the fire resistance test, ensure that the stored items for the test inside the safe are available.

5.2.3 After the fire resistance test, the stored items inside the safe are considered usable if they meet the following conditions.

a) The newsprint is not broken, cracked, stuck together and cannot be separated, and shows no obvious discoloration or deterioration;

b) After the water shock test (where applicable), the stored items should not show obvious signs of soaking;

c) The contents of M-type items are readable and none are missing;

d) Category Q items should meet the requirements stated by the enterprise.

8.1 Arrangement of temperature measurement points inside the specimen

8.1.1 General Requirements The arrangement of temperature measuring points inside the specimen should not affect the specimen's sealing performance, and the maximum permissible error for arranging the temperature measuring points is ±2mm.

8.1.2 Arrangement of internal temperature measurement points for Class H specimens

8.1.2.1 For the single-leaf door specimen, four temperature measuring points are arranged in each independent structure inside, all 150 mm from the inner top and 150 mm from the inner sidewall. 25mm. The first two temperature measuring points are 25mm from the inner surface of the door leaf, and the last two temperature measuring points are 150mm from the inner rear wall, as shown in Figure 2.

8.1.2.2 For test specimens of double-leaf doors, in addition to the four temperature measuring points arranged as per 8.1.2.1, a fifth temperature measuring point should be arranged directly opposite the center seam of the door leaf. The temperature point is 150mm from the top of the door and 25mm from the inner surface of the door leaf.

8.1.2.3 For drawer-type specimens, the temperature measurement points for each insulated drawer are arranged as follows:

a) Three temperature measuring points are arranged inside the top drawer (first drawer), each 150mm from the top of the drawer. Two temperature measuring points are located at the front corners, 150mm from the inner side wall. The inner surface of the front panel of the drawer is 25mm thick, and one temperature measuring point in the middle and rear part is 150mm from the inner rear wall of the drawer, as shown in Figure 3.

b) Place a temperature measuring point at the front left corner of the second drawer below the top drawer, 150mm from the top of the drawer and from the inner side wall and drawer. The inner surface of the front panel is 25mm thick, as shown in Figure 4.

c) A temperature measuring point is placed at the front right corner of the third drawer. It should be 150mm from the top of the drawer interior and at a distance from the inner side wall and the inner surface of the drawer front panel. All surfaces are 25mm thick.

d) Each of the following drawers has a temperature measuring point at its front corner, and the position of the measuring point is staggered with that of the drawer above.

8.1.2.4 When the internal clear height of the specimen is less than 300mm, the temperature measurement point can be arranged at half the internal clear height, referring to 8.1.2.1~8.1.2.3.

8.1.3 Arrangement of internal temperature measurement points for M-type and Q-type specimens

8.1.3.1 For single-leaf door specimens, four temperature measuring points are arranged in each independent structure inside the door. The temperature measuring points are distributed in the upper inner part, at a distance from the top and inner side of the door. The inner wall, inner rear wall, and inner surface of the door leaf are all 25mm thick, as shown in Figure 5.

8.1.3.2 For test specimens of double-leaf doors, in addition to the four temperature measuring points arranged as per 8.1.3.1, a fifth temperature measuring point should be arranged directly opposite the center seam of the door leaf. The temperature point is 25mm from both the top of the door and the inner surface of the door leaf.

8.1.3.3 For drawer-type specimens, the temperature measurement points for each insulated drawer are arranged as follows:

a) Three temperature measuring points are arranged inside the top drawer (first drawer), each 25mm from the top of the drawer. Two temperature measuring points are located at the front corners, 25mm from the inner side wall. The inner surface of the front panel of the drawer is 25mm, and there is a temperature measuring point in the middle and rear part 25mm away from the inner rear wall of the drawer, as shown in Figure 6.

8.1.4 Arrangement of internal temperature measuring points for handheld specimens For portable specimens, two temperature measuring points are arranged along the length of the specimen, located at the midpoints of the width and height directions, and four points along the length direction. One-third of the way, see Figure 8.

8.1.5 Humidity Sensor Arrangement

8.1.5.1 Single-leaf door specimens, double-leaf door specimens, and handheld humidity sensors should be placed inside the specimen at the top center, 25mm from the top.

8.1.5.2 For drawer-type test specimens, one humidity sensor is placed in each drawer, located in the center of the drawer.

8.1.6 Other situations If the temperature measurement points cannot be arranged as required due to the limitations of the specimen structure, refer to

8.1.4 for arrangement.

8.2 Specimen filling

8.2.1 Fill each individual structure or drawer of the specimen with newsprint wads along the inner walls and bottom. If necessary, secure the wads with tape. Wrinkled, fluffy newsprint balls are evenly packed into individual compartments or drawers, filling at least 25% of their volume and no more than [amount not specified]. Over 50%.

8.2.2 For Class M and Class Q safes, corresponding storage items should also be placed in each individual structure or drawer of the test piece, if necessary. Secure with tape.

8.3 Sealing of sensor holes After the sensor is installed on the test piece, use aluminum silicate cotton, fireproof adhesive, or similar materials to seal all passages through which the sensor passes through the bottom opening. The gap is shown in Figure

9.For specimens with multiple independent structures or drawers, any gaps leading to the measuring sensor should be at least on both sides. seal.

8.4 Temperature conditions inside the refractory test furnace

8.4.1 The temperature rise curve in the refractory test furnace should be selected from the refractory test types in Table 2.

8.4.2 The furnace temperature and allowable temperature control deviation for the standard fire resistance test shall meet the requirements of GB/T 9978.1.

8.4.3 The furnace temperature and allowable temperature control deviation for hydrocarbon (HC) fire resistance tests and electrical fire resistance tests shall comply with the requirements of GB/T 26784.

8.4.4 The flame inside the refractory test furnace should not directly impact the surface of the specimen.

8.4.5 The number of thermocouples in the refractory test furnace should not be less than four, evenly distributed around the specimen. The hot junction of the thermocouple should be in contact with the specimen under the influence of the refractory material. The distance between the flame and the flame should be 100mm.

8.4.6 During the test, the single-point temperature and average temperature inside the refractory test furnace should be recorded once per minute.

8.5 Pressure conditions inside the refractory test furnace

8.5.1 The pressure conditions inside the refractory test furnace shall comply with the requirements of GB/T 9978.1.

8.5.2 The pressure inside the refractory test furnace should be recorded every minute during the test.

8.6 Temperature and humidity conditions inside the specimen During the test, the internal temperature and humidity of the specimen should be recorded every minute.

8.7 Test Procedure The experiment was conducted according to the following procedure.

a) Place the specimen that meets the requirements of Chapter 6 into the refractory test furnace and lock the specimen.

b) Increase the temperature according to the corresponding temperature rise curve.

c) Record the internal temperature and humidity of the specimen.

d) Stop heating if the temperature and humidity limits in Table 5 are exceeded or the expected refractory time is reached.

e) Without opening the furnace door, the internal temperature of the specimen should continue to be recorded until it reaches the temperature required for the cooling stage. until.

f) Once the specimen has cooled to a workable state, check for cracks that could affect its insulation and sealing properties. Open the specimen door or drawer and inspect. The availability of newsprint or storage items inside the test specimen shall meet the requirements of 5.2.3a), 5.2.3c), and 5.2.3d).

g) If a water impact test is to be conducted, the specimen must be placed in a safe testing position within 5 minutes after the fire resistance test is completed, and the water impact device... The impact pressure was

0.21 MPa at a distance of 6m ± 0.1m directly in front of the safe, and the impact time was 1 minute. After the test, the safe was opened. Check safes or drawers to ensure that the stored items meet the requirements of 5.2.3b).