strength level, bulk density level, specification size, product grade, and standard number.Handan Cheng’an,　　Location, please note that the maximum distance cannot exceed meters.　　Marking examples: strength level A, bulk density level B, superiorLes-Abymes,Handan Cheng’anautoclaved aerated concrete block,　　 Block product marking: Mark in the order of product name (code ACB), strength level bulk density level, specification size, product grade, and standard number.　　There are six levels of volumetric density: B, B, B, B, B, and B　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.

　　Specification for autoclaved aerated concrete blocks Scope This standard specifies the product classification, technical requirements, test methods, inspection rules, and transportation of autoclaved aerated concrete blocks.　　Aerated blocks have been widely used in load-bearing or non load-bearing structures and pipeline insulation in industrial and civil buildings in China　　There are seven strength levels: A, A, A, A, A, A, and AProject scope,　　Control standard for radioactive substances in building materials mixed with industrial waste - Determination of steady-state thermal resistance and related characteristics of insulation materials - Protective hot plate method for testing the performance of aerated concrete - General rules - Test methods for volumetric density, moisture content,Handan Cheng’anaerated block brick, and water absorption of aerated concrete - Mechanical properties of aerated concrete - Test methods for drying shrinkage of aerated concrete - Test methods for frost resistance of aerated concrete ( - Terminology of bricks and blocks Product classification Specifications: The specifications and dimensions of the blocks are shown in Table 　　 The following standards contain provisions that constitute the provisions of this standard by reference in this standard. At the time of publication of this standard, all versions shown are valid. All standards will be revised, and all parties using this standard should explore the possibility of using the latest versions of the following standards.　　 Blocks are classified according to their compressive strength and volumetric density.

　　There are six levels of volumetric density: B, B, B, B, B, and BQuality improvement,　　Control standard for radioactive substances in building materials mixed with industrial waste - Determination of steady-state thermal resistance and related characteristics of insulation materials - Protective hot plate method for testing the performance of aerated concrete - General rules - Test methods for volumetric density, moisture content, and water absorption of aerated concrete - Mechanical properties of aerated concrete - Test methods for drying shrinkage of aerated concrete - Test methods for frost resistance of aerated concrete ( - Terminology of bricks and blocks Product classification Specifications: The specifications and dimensions of the blocks are shown in Table 　　 When laying aerated bricks the distance between the bottom of the wall needs to be filled with small solid bricks, but the maximum cannot exceed　　Marking examples: strength level A, bulk density level B superiorHandan Cheng’an,　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.　　There are six levels of volumetric density: B, B, B,Handan Cheng’an block, B, B, and B　　This standard applies to autoclaved aerated concrete blocks (hereinafter referred to as blocks) used for walls and insulation in civil and industrial buildings.