SRM 2384 Baking Chocolate - This Standard Reference Material (SRM) is intended primarily for use in validating methods for determining proximates, fatty acids, calories, vitamins, elements, catechins, caffeine, and theobromine in baking chocolate and similar matrices. This SRM can also be used for quality assurance when assigning values to in-house reference materials. The SRM is baking chocolate prepared from 100 % cocoa beans by a manufacturer of baking chocolate and consists of a single production lot.

SRM 2387 Peanut Butter - This Standard Reference Material (SRM) is intended primarily for use in validating methods for determining proximates, fatty acids, calories, vitamins, elements, amino acids, aflatoxins, and acrylamide in peanut butter and similar matrices. This SRM can also be used for quality assurance when assigning values to in-house reference materials. The SRM is a creamy peanut butter prepared by a manufacturer of peanut butter products. A unit of SRM 2387 consists of three jars of peanut butter containing 170 g each.

Information on a variety of topics that assess civic health: interactions with family, friends, neighbors; political engagement; group membership and participation; frequency of volunteering activity; and donations to political or charitable organizations.

Information on person and household broadband (high-speed Internet) use, where it is used, by what types of devices, what type of service provider, and other characteristics.

Information on a variety of topics that assess civic health: interactions with family, friends, neighbors; political engagement; group membership and participation; frequency of volunteering activity; and donations to political or charitable organizations.

Information on person and household broadband (high-speed Internet) use, where it is used, by what types of devices, what type of service provider, and other characteristics.

Information on a variety of topics that assess civic health: interactions with family, friends, neighbors; political engagement; group membership and participation; frequency of volunteering activity; and donations to political or charitable organizations.

Information on person and household broadband (high-speed Internet) use, where it is used, by what types of devices, what type of service provider, and other characteristics.

Information on a variety of topics that assess civic health: interactions with family, friends, neighbors; political engagement; group membership and participation; frequency of volunteering activity; and donations to political or charitable organizations.

Information on person and household broadband (high-speed Internet) use, where it is used, by what types of devices, what type of service provider, and other characteristics.